 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 1. product profile 1.1 general description based on the anisotropic magnetoresistive (a mr) effect, the kmi23/2 and the kmi23/4 detect the rotational speed of target wheels. the kmi23/2 is used with active target wheels (multipole encoders) and the kmi23/4 is used with passive target wheels (ferromagnetic gear wheels). this design delivers secure speed information over a wide range of speed, air gap and temperature. it delivers the speed information via a current protocol at the supply pins. 1.2 features and benefits ? system in package ? two wire current interface ? square wave output signal (standard protocol) ? large range of air gap ? large range of operating terminal voltage ? wide temperature range ? high electrostatic discharge (esd) protection ? very low jitter ? automotive qualified in accordance with aec-q100 rev-g (grade 0) kmi23/2; kmi23/4 high performance rotational speed sensor rev. 1 ? 28 april 2016 product data sheet 6 2 7 ( caution do not press two or more products together agai nst their magnetic forces and do not let them collide with each other.
kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 2 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 1.3 quick reference data 2. pinning information 3. ordering information table 1. quick reference data symbol parameter conditions min typ max unit v cc supply voltage normal operation mode; t amb ? 170 ?c; referred to pin gnd 6.8 - 16 v t amb ambient temperature normal operation mode ? 40 - +150 ?c i ccl low-level supply current 5.88 7.0 8.4 ma i cch high-level supply current 11.7 14.0 16.8 ma f h magnetic field strength frequency 0- 2.5khz h m peak magnetic field strength after power-on; speed pulses latest after n cy(h) magnetic cycles; see characteristics in ta b l e 6 kmi23/2 150 - - a/m kmi23/4 190 - - a/m table 2. pinning pin symbol description simplified outline kmi23/2 kmi23/4 1v cc supply pin 2 gnd ground pin table 3. ordering information type number package name description version kmi23/2 sip2 plastic single- ended multi-chip package; ma gnetized ferrite magnet (3.8 ? 2 ? 0.8 mm); 4 interconnections; 2 in-line leads sot453a kmi23/4 sip2 plastic single- ended multi-chip package; ma gnetized ferrite magnet (4.25 ? 5.2 ? 3 mm); 4 interconnections; 2 in-line leads sot453e kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 3 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 4. functional diagram 5. functional description the kmi23/2 and the kmi23/4 are high pe rformance amr speed sensors, which are dedicated to abs applications. the difference between both product versions is the stimulating element in the app lication, which is a magnetized multipole encoder (kmi23/2) or a ferromagnetic gear wheel (kmi23/4). 5.1 system architecture the functional principles of km i23/2 and kmi23/4 are shown in figure 2 and figure 3 , respectively. for the km i23/2, the magnetic poles lead to different magnetic stimuli at the amr bridge. for the kmi23/4, flux bending at the gear wheel teeth generates different magnetic stimuli at the amr bridge. in both cases, the electrical output voltage of the amr bridge depends on the position of the sensor relative to the encoder. as a consequence, a rotating encoder generates a periodic output signal at the amr bridge. the kmi23/2 and the kmi23/4 are sensitive to mo vement in the y direction in front of the sensor only. for definition of the coordinate axes, see figure 4 . fig 1. functional diagram d d d d g m x v w d e o h d p s o l i l h u d q d o r j v x s s o \ g l j l w d o v x s s o \ v p d u w f r p s d u d w r u 9 f f * 1 ' 2 1 & + , 3 2 6 & , / / $ 7 2 5 3 ' , & ' , * , 7 $ / & 2 1 7 5 2 / 8 1 , 7 2 ) ) 6 ( 7 & $ 1 & ( / $ 7 , 2 1 6 ( 1 6 2 5 ' $ & ' $ & $ ' & ' $ & , + , / 9 5 ( * 6 7 $ 5 7 8 3 % $ 1 ' * $ 3 5 ( 6 ( 7 / ' , & kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 4 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor the kmi23/2 and the kmi23/4 each comprise an amr sensor chip, a position detector ic (pdic) and a line driver ic (ldic). the pdic comprises the signal conditioning circuits, whereas the ldic comprises the external interface and the supply for pdic and amr bridge (see figure 1 ). the amr sensor chip carries four mr elements arranged as a wheatstone bridge. the amr bridge converts the magnetic field, generated by the encoder rotation, into an electrical output si gnal. this signal is n early sinusoidally with time. fig 2. functional principle of kmi23/2 d d d v h q v r u \ ] e l d v p d j q h w 1 p r y l q j g l u h f w l r q r i w k h v h q v r u p d j q h w l ] h g w d u j h w 6 6 1 1 6 6 1 1 6 fig 3. functional principle of kmi23/4 j h d u z k h h o p d j q h w p d j q h w l f i l h o g o l q h v d e f g l u h f w l r q r i p r w l r q g p u d v h q v r u \ ] a. kmi23/2 b. kmi23/4 fig 4. definition of coordinate system d d d \ w r s y l h z v l g h y l h z [ [ ] d d d \ w r s y l h z v l g h y l h z [ [ ] kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 5 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor the ldic chip is fabricated using a robust high-voltage process. this measure shields the other two dies from the harsh electric al environment on the supply line v cc . the constant current source i l provides the low-level output signal of typically 7 ma and delivers the supply current for the whole sensor system. thus from i l the supply voltages for the pdic, the amr bridge and the current source block i h are derived. the switchable current source i h also delivers typically 7 ma. hence, if i h is active, the total supply current is at its high level of typically 14 ma. with this curren t interface, safe sensor signal transport to the electronic control unit (ecu) using only a two-wire cable is provided. within the pdic, the differential output volt age of the amr sensor bridge leads as speed signal into an analog signal chain. it compri ses an amplifier with adju stable gain, followed by an offset cancelation stage and finally, a smart comparator having adjustable hysteresis levels. the latter converts the sinu soidal sensor signal into a rectangular output signal, which controls the sw itchable curr ent source i h . hence, the supply current switches between its low and high values of typically 7 ma and 14 ma at the magnetic field strength frequency. thus, the supply curr ent as an output signal allows measuring the rotational speed of the encoder wheel. a peak detector within the digital control unit on the pdic measures the amplitude and the offset of the sensor signal. the peak detector has a resolution of 8 bit. this feature allows the digital control unit on one hand, to eliminat e the signal offset. this function is realized with a dedicated digital-to-analog converter (d ac). the dac has a resolution of 12 bits. on the other hand, it allows the digital control unit to optimize amplifier gain and comparator hysteresis settings according to the actual signal amplitude. due to these measures, the sensor system can handle a wid e amplitude range. this amplitude range in turn allows the kmi25/2 and kmi25/4 to handle a wide range of air gaps between sensor and encoder. the hysteresis of the smart comparator prevents erroneous multiple switching due to mechanical vibrations of the encoder wheel. a further important feature of the smart comparator is, that it switches its output level always at the zero-crossing of its input signal. thus, the phase of its rect angular output signal is independent of its hysteresis setting and independent of the gain setting at the amplifie r. for this reason, adjustments of gain and hysteresis in the sign al chain avoid the introduction of jitter into the sensor output signal. the whole sign al chain works even under dc conditions, therefore having true zero hertz capability. 5.2 speed signal cond itioning algorithm the digital control unit (see figure 1 ) controls the speed signal conditioning algorithm. the general purpose is, to control the analog blocks in the signal channel to optimize signal conditions at the analog comparator i nput. therefore, the algorithm characterizes the sensor input signal, as observed within the digital domain. as a result, the algorithm adjusts the amplifier gain, cancels the signal offset and sets the comparator hysteresis. to fulfill this task, the digital control unit pr ovides switching between different operating modes. depending on frequency and amplitude of the input signal, one of the following modes is selected: ? start-up mode ? adaptation mode ? normal mode ? low-speed mode kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 6 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor figure 5 depicts a flow chart summarizing the most important features of each mode and the conditions for switching between modes . for each transition , all of the listed conditions must be satisfied (logical and), unless the notation ?or? is used. the latter indicates a logical or connection. in this case , the transition is performed if any of the listed conditions is satisfied. the following sections describe the implemented measurement functions for offset, amplitude and frequency as well as each operation mode. 5.2.1 peak detector the peak detector is part of the digital control unit. it samp les the amr input signal with a resolution of 8 bits and detects the positive and negative peak values. from these values, it calculates the signal offset and the signal amplitude. the offs et is calculated as half of fig 5. flow chart d d d v w d u w x s p r g h u h v h w d g d s w d w l r q p r g h q r u p d o p r g h o r z v s h h g p r g h * d l q d g m x v w p h q w f r p s o h w h g 2 i i v h w u h g x f h g w r ? / 6 % ) u h t x h q f \ ! + ] 6 h d u f k i r u v l j q d o s h d n v d i w h u s r z h u r q v h d u f k i r u v l j q d o s h d n v r w k h u z l v h 6 l q j o h r i i v h w d g m x v w p h q w r q o \ i r u o d u j h r i i v h w d q g v p d o o d p s o l w x g h ) l [ h g j d l q w h p s h u d w x u h g h s h q g h q w k \ v w h u h v l v 2 i i v h w ! r i d p s o l w x g h r u q r ] h u r f u r v v l q j g h w h f w h g g x u l q j s u h y l r x v v l j q d o s h u l r g ) u h t x h q f \ ! + ] $ p s o l w x g h ? r i s u h y l r x v y d o x h l q q r u p d o p r g h ) u h t x h q f \ + ] 1 r u p d o p r g h q r w h q w h u h g s u h y l r x v o \ i u h t x h q f \ ! + ] l h s h d n v i r x q g l q o h v v w k d q v v ) u h t x h q f \ + ] 1 r u p d o p r g h h q w h u h g s u h y l r x v o \ i u h t x h q f \ + ] 6 h d u f k i r u v l j q d o s h d n v * d l q d q g r i i v h w y d o x h v n h s w i u r p s u h y l r x v p r g h + \ v w h u h v l v u h g x f h g w r r i s u h y l r x v y d o x h l q q r u p d o p r g h $ p s o l w x g h g h s h q g h q w j d l q d g m x v w p h q w $ p s o l w x g h g h s h q g h q w k \ v w h u h v l v d g m x v w p h q w 6 o r z r i i v h w f r u u h f w l r q & r p s h q v d w h r i i v h w w r p d [ l p x p ? / 6 % $ p s o l w x g h g h s h q g h q w j d l q d g m x v w p h q w kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 7 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor the sum of opposite signal peaks. the amplit ude is calculated as difference of opposite signal peaks. principally, a peak is detected , where the difference between succeeding signal samples switches its sign. in order to cope with superimposed noise and spurious spikes, the peak detector uses dedicated filter algorithms. 5.2.2 frequency measurement as pointed out above, the peak detector calculates the signal offset. this offset level is the ?zero level? of the sensor signal. whenever the sensor signal crosses this ?zero level?, the comparator switches its state. if a zero-crossing with a falling edge is detected first, th en frequency measurements are always made between falling edges. if a zero-c rossing with a rising edge is detected first, then frequency measurements are always made between rising edges. thus always a complete signal period is used and the resu lt is independent of any duty cycle shifts. the frequencies occurring in start-up mode and low-speed mode are very low. thus, an indirect frequency measurement is done here by counting the number of signal peaks within 2 seconds. 5.2.3 start-up mode usually the system enters this mode after po wer-on reset. at power-on, nothing is known about the input signal properties. the function of the speed control algorithm in start-up mode is to characterize the input signal and pr oduce estimates of its amplitude, offset and frequency. therefore, once the sensor element has been supplied with voltage, all circuit parts are set into defined initial conditions. th ese conditions comprise fixed amplifier gain and fixed (but temperat ure-dependent) comp arator hysteres is. furthermore, there is still no offset cancelation. this procedure may ta ke up to 1 ms. these initial conditions are used to process the sensor bridge signal in the first instant. thereafter the system is ready to react on the input voltage. if the first speed signal samples are near the pos itive or negative signal range limit, a large offset is assumed. in this case, an initial offset correction with a predefined level is executed. this function is applied to speed up the signal recognition in case of small signals superimposed on a large offset. generally, the ?start-up? performance strongl y depends on the signal amplitude and its offset. because of the possibility of missi ng the second zero-crossing, the first zero-crossing of the input signal is not used. so under normal conditions (offset is relatively small w.r.t. amplitud e), the sensor issues the first speed pulse at its output with the second zero-crossing of the analog input signal. as there is no offset regulation during start-up mode, the speed pulses issued during this mode may be shifted in time w.r.t. the zero-crossings of the sensor signal. as a cons equence, the duty cycle of the output signal may not yet fulfill the specification, if an exte rnal magnetic offset is present. for small amplitudes and large offsets, no zero-crossings may be detected during start-up mode until offset compensation is performed in adaptation mode. if the peak detector has found 8 signal peaks within 4 seconds, start-up mode is left and adaptation mode is entered. however, if start-up mode has been entered coming from adaptation mode, then 4 signal peaks withi n 2 seconds cause reentering adaptation mode. kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 8 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 5.2.4 adaptation mode the main purpose of adaptation mode is to optimize the signal conditions by adjusting gain and offset, based on the es timates made in st art-up mode. after standstill or in a sudden change of signal offset, adaptation mode is entered as well. in adaptation mode, offset compensation and gain setting are applied once per signal cycle. offset compensation first takes place in correcting 7 8 of the calculated offset per step. it continues until the residual offset is below a threshold of 2 least significant bit (lsb). an exception occurs, if the remaining of fset is larger than five times the signal amplitude. in this case, the co rrection of that step is limited to the remaining offset level. in order to avoid the generation of erroneous additional zero-crossings, the activity of the offset compensation depends on the previous si gnal slope. therefore, a positive offset is only corrected after a falling slope and a negativ e offset is only corrected after a rising slope. if necessary, the amplifier gain is doubled or halfed, until the digital signal amplitude is between 25 % and 75 % of its range. the tem perature-dependent hysteresis level at the comparator input is kept at the same percentage level w.r.t. to the signal range as in the previous mode. the number of steps required for the adaptat ion process depends on the relation between offset and signal amplitude. small amplitud es coming with a large offset require a maximum number of steps. in such cases, the first zero-cro ssing may not be detected in start-up mode, but in adaptation mode. as in start-up mode the second zero-crossing could be missed under certain conditions also in adaptation mode. therefore, in order to ensure an uninterrupted pulse train, also in adaptation mode the first detected zero-crossing is not used. hence under normal conditions, the first output signal is issued at the second detected zero-crossing. the goal of the adaptations is a signal amplitude of 25 % to 75 % and an offset of maximal 2 lsb. if the frequency is greater than 1 hz, the system then switches from adaptation mode to normal mode. if the frequency falls below 1 hz, the previous mode is entered again (start-up mode or low-speed mode). 5.2.5 normal mode normal mode is entered when the necessary adjustments to the gain and offset have been completed in adaptation mode. the goal of the normal mode is, to keep duty cycle and jitter of the output si gnal within specification. during normal mode, amplifier gain is still adapted proportio nal to signal amplitude as in adaptation mode. thus, the input signal amp litude is between 25 % and 75 % of the signal range. the hysteresis control, which in start-up mode and adaptation mode is carried out depending on temperature, is now carried out depending on signal amplitude. applied hysteresis levels are at 23 % to 52 % of the amplitude. due to this measure, the hysteresis levels are high enough to provide a high level of immunity to noise and signal disturbances. on the other hand, the hysteres is is small enough to maintain continued comparator switching, even when offset jumps occur. for very small amplitudes, the hysteresis is not set below a fixed minimum level and the ratio hysteresis/amplitude can become greater than 52 %. kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 9 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor in adaptation mode, the offset has been reduced down to maximum 2 lsb using few coarse compensation steps. in normal mode however, the goal is to reach and maintain zero offset by using a slow offset correcti on. for this purpose, th e offset compensation level is changed at a limited rate versus time, as long as a residual offset is detected. due to this slow offset correction , duty cycle deviations and jitte r of succeeding output pulses are minimized. if however offset changes at a faster rate than the slow correction can compensate, an increasing residual offset occurs. the residual offset causes a shift of the duty cycle ? o at the output signal. in order to prevent ? o from leaving the specified window (see characteristics in ta b l e 6 ) or even loss of signal, the system switches back to adaptation mode. if the residual offset has become greater than 50 % of the amplitude, the system switches to adaptation mode. in adaptation mode, the remaining offset is minimized again, as described in section 5.2.4 . if the signal frequency drops below 1 hz, the system also leaves normal mode and enters low-speed mode. 5.2.6 low-speed mode if during adaptation mode or normal mode, the frequency drops below 1 hz low-speed mode is entered. if the vehicle is stationary, no signal peaks can be detected in order to calculate amplitude and offset. thus, the algorithms for offset compensation and adaptation of gain and hysteresis cannot be applied. therefore, low-speed mode acts as a standby mode. in this mode, some of the normal functions of the algorithms are suspended until the frequency returns above 1 hz. the previously calculated offset and gain setti ng are maintained, until the system returns to adaptation mode. the hysteresis thresholds of the comparator are lowered to 55 % of their previous value (if not the lowest hysteresis was already present). this measure allows an amplitude reduction up to 44 % without loss of co mparator switching. a special case is ?signal clippi ng? during low-speed mode. signal clipping means, that the sensor signal reaches the positive or negative edge of the signal range. in this case, slow offset compensation, similar to normal mode is applied. the goal of this measure is to prevent, that the offset drift moves th e full signal outside of the signal range. the system leaves low-speed mode and enter s adaptation mode as soon as the peak detector has found four signal peaks within two seconds. as an additional condition, the signal amplitude must be greater than 37.5 % of the value measured when entering low-speed mode. 5.3 output signal 5.3.1 physical representation of output signal the output signal is shown in figure 6 . whenever there is a zero-crossing of the magnetic input field (falling or rising) t he output current changes from 7 ma to 14 ma or vice versa. between the detected zero-crossing and the resp ective edge of the output current, there is a delay time of t d (see characteristics in table 6 ). kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 10 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 6. limiting values output duty cycle: fig 6. timing of output signal to input signal and definition of duty cycle ? o d d d w g w w g w w g p $ p $ ] h u r f u r v v l q j r i p d j q h w l f i l h o g ? o ? t t 0 ----- 100 % ? = table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referred to pin gnd. symbol parameter conditions min max unit v cc supply voltage normal operation mode ? 40 ? c kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 12 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor [1] once v cc has exceeded v cc(swon) , the sensor switches on and current levels and current ratios are maintained until v cc falls below v cc(swoff) . [2] after supplying more than v cc(swon) to the device, it needs a turn-on delay time of t d(on) to reach stable operation. a stable supply current indicates stable operation. [3] during normal mode; for definition of duty cycle see figure 6 . timing parameters t d delay time delay between magnetic zero-crossing and output switching; see figure 6 70 - 121 ? s ? (t) period jitter one-sigma value; required peak level of magnetic signal: h m = 280 a/m (kmi23/2) h m = 398 a/m (kmi23/4) ? 0.1 - +0.1 % one-sigma value; required peak level of magnetic signal: h m = 55 a/m (kmi23/2) h m = 78 a/m (kmi23/4) ? 0.5 - +0.5 % ? o output duty cycle required peak level of magnetic signal: h m = 55 a/m (kmi23/2) h m = 78 a/m (kmi23/4) [3] 30 - 70 % required peak level of magnetic signal: h m = 75 a/m (kmi23/2) h m = 107 a/m (kmi23/4) [3] 40 - 60 % start-up performance after power-on, if magn etic field amplitude > minimum value of h m and f h > 1 hz n cy(h) number of magnetic field cycles no external magnetic offset; duty cycle within specification --15- maximum allowed external magnetic offset; duty cycle within specification --23- table 6. characteristics ?continued characteristics are valid for the operating conditions specified in section 7 ; voltages are referred to pin gnd; unless otherwise specified. symbol parameter conditions min typ max unit kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 13 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 9. electromagnetic compatibility the following tests by an independent and ce rtified test laboratory have verified emc: 9.1 emission ? cispr 25 (2008, third edition), chapter 6. 2: conducted emission, voltage method ? cispr 25 (2002, second edition), chapter 6. 4: radiated emission, absorber-lined shielded enclosure (alse) method 9.2 immunity to electrical transients tests were carried out with external protection circuit. ? iso 7637-3: electrical transient tr ansmission by capacitive coupling 9.3 immunity to radiated disturbances ? iso 11452-2: antenna in alse, including radar pulses ? iso 11452-4: bulk current injection (bci) ? substitution method ? iso 11452-5: strip line 10. electrostatic discharge (esd) the following tests have verified esd: 10.1 human body model (aec-q100-002) ? 8 kv at external pins (v cc and gnd) ? 500 v at internal amr bridge pins 10.2 machine model (aec-q100-003) ? 400 v at external pins (v cc and gnd) ? 100 v at internal amr bridge pins 10.3 charged-device model (aec-q100-011) ? 1 kv at external pins (v cc and gnd) ? 500 v at internal amr bridge pins kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 14 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 11. application information 12. test information 12.1 quality information this product has been qualified in accordance with the automotive electronics council (aec) standard q100 rev-g (grade 0) - failure mechanism based stress test qualification for integrated circuits , and is suitable for use in automotive applications. 13. marking fig 7. test and application circuit d d d 9 & & 5 / 6 ( 1 6 2 5 r x w s x w v l j q d o * 1 ' v x s s o \ , & & x: product manufacturing code; m for manufacturing manila and p for manufacturing hong kong yyy: day of year z: year of production (last figure) a. kmi23/2 b. kmi23/4 fig 8. marking d d d ; < < < = . 0 , e d w f k q x p e h u p r y l q j g l u h f w l r q h q f r g h u q q q q q d d d ; < < < = . 0 , e d w f k q x p e h u p r y l q j g l u h f w l r q h q f r g h u q q q q q kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 15 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 14. package outline fig 9. package outline sot453a (sip2) 5 h i h u h q f h v 2 x w o l q h y h u v l r q ( x u r s h d q s u r m h f w l r q , v v x h g d w h , ( & - ( ' ( & - ( , 7 $ 6 2 7 $ v r w d b s r ' l p h q v l r q v p p d u h w k h r u l j l q d o g l p h q v l r q v 3 o d v w l f v l q j o h h q g h g p x o w l f k l s s d f n d j h p d j q h w l ] h g i h u u l w h p d j q h w [ [ p p l q w h u f r q q h f w l r q v l q o l q h o h d g v 6 2 7 $ ( ( + ( / ' / e s ' + ( 0 0 . f 4 6 $ 0 6 ( 1 6 2 5 ' , ( 3 2 6 , 7 , 2 1 f h q w u h r i u h d g l q j s r l q w / e s % $ y $ % y $ % h v f d o h p p p p d u r x q g w k h s o d v w l f e r g \ w k h o h d g i l q l v k l v x q f r q w u r o o h g 1 r w h * o x h w k l f n q h v v q r w l q f o x g h g 8 q l w p p p d [ q r p p l q $ e s e s f ' ' / ( ( h + ( + ( / . 4 6 y / 0 0 0 kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 16 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor fig 10. package outline sot453e (sip2) 5 h i h u h q f h v 2 x w o l q h y h u v l r q ( x u r s h d q s u r m h f w l r q , v v x h g d w h , ( & - ( ' ( & - ( , 7 $ 6 2 7 ( v r w h b s r 8 q l w p p p d [ q r p p l q ? ? ? ? . . ' l p h q v l r q v p p d u h w k h r u l j l q d o g l p h q v l r q v 3 o d v w l f v l q j o h h q g h g p x o w l f k l s s d f n d j h p d j q h w l ] h g i h u u l w h p d j q h w [ [ p p l q w h u f r q q h f w l r q v l q o l q h o h d g v 6 2 7 ( e s $ e s f ' ' / ( ( h + ( + ( / . / y 0 0 0 0 0 3 4 6 v f d o h p p 6 ( 1 6 2 5 ' , ( 3 2 6 , 7 , 2 1 f h q w u h r i u h d g l q j s r l q w / ( 0 / 0 0 ' 0 / + ( ' e s h e s f $ % $ ( 0 + ( % y % 4 6 . $ y 3 $ p p d u r x q g w k h s o d v w l f e r g \ w k h o h d g i l q l v k l v x q f r q w u r o o h g 1 r w h * o x h w k l f n q h v v q r w l q f o x g h g kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 17 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 15. handling information 16. solderability information the solderability qualif ication is according to aec-q10 0 rev-g. recommended soldering process for leaded devices is wave solder ing. the maximum soldering temperature is 260 ? c for maximum 5 s. device terminals are compatible with laser and electrical welding. the device is reflow capable. 17. revision history dimensions in mm (1) no bending allowed. (2) plastic body and interface plastic body - l eads: application of bending forces not allowed. fig 11. bending recommendation d d d 5 p l q table 7. revision history document id release date data sheet status change notice supersedes kmi23_2_4 v.1 20160428 product data sheet - - kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 18 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor 18. legal information 18.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 18.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer , unless nxp semiconductors and customer have explicitly agreed otherwis e in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 18.3 disclaimers limited warranty and liability ? information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such info rmation. nxp semiconductors takes no responsibility for the content in this document if provided by an information source outside of nxp semiconductors. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors? aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes ? nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. applications ? applications that are described herein for any of these products are for illustrative purpos es only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customer?s sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customer?s applications and products planned, as well as fo r the planned application and use of customer?s third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer?s applications or products, or the application or use by customer?s third party customer(s). customer is responsible for doing all necessary testing for the customer?s applic ations and products using nxp semiconductors products in order to av oid a default of the applications and the products or of the application or use by customer?s third party customer(s). nxp does not accept any liability in this respect. limiting values ? stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any lic ense under any copyrights, patents or other industrial or intellectual property rights. suitability for use in automotive applications ? this nxp semiconductors product has been qualified for use in automotive applications. unless otherwise agreed in writing, the product is not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors and its suppliers accept no liability for document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification. kmi23_2_4 all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2016. all rights r eserved. product data sheet rev. 1 ? 28 april 2016 19 of 20 nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. quick reference data ? the quick reference data is an extract of the product data given in the limiting values and characteristics sections of this document, and as such is not comple te, exhaustive or legally binding. export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from competent authorities. translations ? a non-english (translated) version of a document is for reference only. the english version shall prevail in case of any discrepancy between the translated and english versions. 18.4 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 19. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com nxp semiconductors kmi23/2; kmi23/4 high performance rotational speed sensor ? nxp semiconductors n.v. 2016. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 28 april 2016 document identifier: kmi23_2_4 please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 20. contents 1 product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 general description . . . . . . . . . . . . . . . . . . . . . 1 1.2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 1.3 quick reference data . . . . . . . . . . . . . . . . . . . . 2 2 pinning information . . . . . . . . . . . . . . . . . . . . . . 2 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 5 functional description . . . . . . . . . . . . . . . . . . . 3 5.1 system architecture . . . . . . . . . . . . . . . . . . . . . 3 5.2 speed signal conditioning algorithm . . . . . . . . . 5 5.2.1 peak detector . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5.2.2 frequency measurement . . . . . . . . . . . . . . . . . 7 5.2.3 start-up mode . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.2.4 adaptation mode. . . . . . . . . . . . . . . . . . . . . . . . 8 5.2.5 normal mode . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.2.6 low-speed mode . . . . . . . . . . . . . . . . . . . . . . . 9 5.3 output signal . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.3.1 physical representation of output signal . . . . . . 9 6 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 10 7 recommended operating conditions. . . . . . . 11 8 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 11 9 electromagnetic compatibility . . . . . . . . . . . . 13 9.1 emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9.2 immunity to electrical transients . . . . . . . . . . . 13 9.3 immunity to radiated disturbances . . . . . . . . . 13 10 electrostatic discharge (esd) . . . . . . . . . . . . 13 10.1 human body model (aec-q100-002). . . . . . . 13 10.2 machine model (aec-q100-003) . . . . . . . . . . 13 10.3 charged-device model (aec-q100-011) . . . . 13 11 application information. . . . . . . . . . . . . . . . . . 14 12 test information . . . . . . . . . . . . . . . . . . . . . . . . 14 12.1 quality information . . . . . . . . . . . . . . . . . . . . . 14 13 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 14 package outline . . . . . . . . . . . . . . . . . . . . . . . . 15 15 handling information. . . . . . . . . . . . . . . . . . . . 17 16 solderability information. . . . . . . . . . . . . . . . . 17 17 revision history . . . . . . . . . . . . . . . . . . . . . . . . 17 18 legal information. . . . . . . . . . . . . . . . . . . . . . . 18 18.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 18 18.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 18.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 18.4 trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 19 contact information. . . . . . . . . . . . . . . . . . . . . 19 20 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 |
Price & Availability of KMI23-2
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |