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? semiconductor components industries, llc, 2006 june, 2006 ? rev. 6 1 publication order number: mc33030/d mc33030 dc servo motor controller/driver the mc33030 is a monolithic dc servo motor controller providing all active functions necessary for a complete closed loop system. this device consists of an on?chip op amp and window comparator with wide input common?mode range, drive and brake logic with direction memory, power h?switch driver capable of 1.0 a, independently programmable overcurrent mon itor and shutdown delay, and overvoltage monitor. this part is ideally suited for almost any servo positioning application that requires sensing of temperature, pressure, light, magnetic flux, or any other means that can be converted to a voltage. although this device is primarily intended for servo applications, it can be used as a switchmode motor controller. features ? on?chip error amp for feedback monitoring ? window detector with deadband and self centering reference input ? drive/brake logic with direction memory ? 1.0 a power h?switch ? programmable overcurrent detector ? programmable overcurrent shutdown delay ? overvoltage shutdown ? pb?free packages are available* *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. marking diagrams a = assembly location wl = wafer lot yy = year ww = work week g = pb?free package 1 pdip?16 p suffix case 648c 1 so?16w dw suffix case 751g 116 15 14 13 12 11 10 9 2 3 4 5 6 7 8 (top view) reference input reference input filter error amp output filter/feedback input gnd error amp output error amp inverting input error amp non? inverting input overcurrent delay gnd error amp input filter pin connections driver output b v cc driver output a overcurrent reference pins 4, 5, 12 and 13 are electrical ground and heat sink pins for ic. http://onsemi.com see detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ordering information 16 1 mc33030dw awlyywwg mc33030p awlyywwg 1 16
mc33030 http://onsemi.com 2 motor 14 10 11 v cc r oc c dly 15 16 power h?switch programmable over? current detector & latch 4, 5, 12, 13 1 2 reference position v cc + + ? direction memory window detector drive/ brake logic over? voltage monitor + ? 3 + + ? error amp 6 7 8 9 feedback position v cc representative block diagram this device contains 119 active transistors. ordering information device package shipping ? mc33030dw soic?16 47 units / rail MC33030DWG soic?16 (pb?free) mc33030dwr2 soic?16 1000 / tape & reel mc33030dwr2g soic?16 (pb?free) mc33030p pdip?16 25 units / rail mc33030pg pdip?16 (pb?free) ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d.
mc33030 http://onsemi.com 3 maximum ratings rating symbol value unit power supply voltage v cc 36 v input voltage range op amp, comparator, current limit (pins 1, 2, 3, 6, 7, 8, 9, 15) v ir ?0.3 to v cc v input differential voltage range op amp, comparator (pins 1, 2, 3, 6, 7, 8, 9) v idr ?0.3 to v cc v delay pin sink current (pin 16) i dly(sink) 20 ma output source current (op amp) i source 10 ma drive output voltage range (note 1) v drv ?0.3 to (v cc + v f ) v drive output source current (note 2) i drv(source) 1.0 a drive output sink current (note 2) i drv(sink) 1.0 a brake diode forward current (note 2) i f 1.0 a power dissipation and thermal characteristics p suffix, dual in line case 648c thermal resistance, junction?to?air thermal resistance, junction?to?case (pins 4, 5, 12, 13) dw suffix, dual in line case 751g thermal resistance, junction?to?air thermal resistance, junction?to?case (pins 4, 5, 12, 13) r ja r jc r ja r jc 80 15 94 18 c/w operating junction temperature t j +150 c operating ambient temperature range t a ?40 to + 85 c storage temperature range t stg ?65 to +150 c electrostatic discharge sensitivity (esd) human body model (hbm) machine model (mm) esd 2000 200 v stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. the upper voltage level is clamped by the forward drop, v f , of the brake diode. 2. these values are for continuous dc current. maximu m package power dissipation limits must be observed. electrical characteristics (v cc = 14 v, t a = 25 c, unless otherwise noted.) characteristic symbol min typ max unit error amp input offset voltage (? 40 c t a 85 c), v pin 6 = 7.0 v, r l = 100 k v io ? 1.5 10 mv input offset current (v pin 6 = 1.0 v, r l = 100 k) i io ? 0.7 ? na input bias current (v pin 6 = 7.0 v, r l = 100 k) i ib ? 7.0 ? na input common?mode voltage range v io = 20 mv, r l = 100 k v icr ? 0 to (v cc ? 1.2) ? v slew rate, open loop (v id = 0.5 v, c l = 15 pf) sr ? 0.40 ? v/ s unity?gain crossover frequency f c ? 550 ? khz unity?gain phase margin m ? 63 ? deg common?mode rejection ratio (v pin 6 = 7.0 v, r l = 100 k) cmrr 50 82 ? db power supply rejection ratio v cc = 9.0 to 16 v, v pin 6 = 7.0 v, r l = 100 k psrr ? 89 ? db output source current (v pin 6 = 12 v) i o + ? 1.8 ? ma output sink current (v pin 6 = 1.0 v) i o ? ? 250 ? a output voltage swing (r l = 17 k to ground) v oh v ol 12.5 ? 13.1 0.02 ? ? v v
mc33030 http://onsemi.com 4 electrical characteristics (continued) (v cc = 14 v, t a = 25 c, unless otherwise noted.) characteristic symbol min typ max unit window detector input hysteresis voltage (v 1 ? v 4 , v 2 ? v 3 , figure 18) v h 25 35 45 mv input dead zone range (v 2 ? v 4 , figure 18) v idz 166 210 254 mv input offset voltage ( ? [v 2 ? v pin 2 ] ? [v pin 2 ? v 4 ] ? figure 18) v io ? 25 ? mv input functional common?mode range (note 3) upper threshold lower threshold v ih v il ? ? (v cc ? 1.05) 0.24 ? ? v reference input self centering voltage pins 1 and 2 open v rsc ? (1/2 v cc ) ? v window detector propagation delay comparator input, pin 3, to drive outputs v id = 0.5 v, r l(drv) = 390 t p(in/drv) ? 2.0 ? s overcurrent monitor overcurrent reference resistor voltage (pin 15) r oc 3.9 4.3 4.7 v delay pin source current v dly = 0 v, r oc = 27 k, i drv = 0 ma i dly(source) ? 5.5 6.9 a delay pin sink current (r oc = 27 k, i drv = 0 ma) v dly = 5.0 v v dly = 8.3 v v dly = 14 v i dly(sink) ? ? ? 0.1 0.7 16.5 ? ? ? ma delay pin voltage, low state (i dly = 0 ma) v ol(dly) ? 0.3 0.4 v overcurrent shutdown threshold v cc = 14 v v cc = 8.0 v v th(oc) 6.8 5.5 7.5 6.0 8.2 6.5 v overcurrent shutdown propagation delay delay capacitor input, pin 16, to drive outputs, v id = 0.5 v t p(dly/drv) ? 1.8 ? s power h?switch drive?output saturation (? 40 c t a + 85 c, note 4) high?state (i source = 100 ma) low?state (i sink = 100 ma) v oh(drv) v ol(drv) (v cc ? 2) ? (v cc ? 0.85) 0.12 ? 1.0 v drive?output voltage switching time (c l = 15 pf) rise time fall time t r t f ? ? 200 200 ? ? ns brake diode forward voltage drop (i f = 200 ma, note 4) v f ? 1.04 2.5 v total device standby supply current i cc ? 14 25 ma overvoltage shutdown threshold (? 40 c t a + 85 c) v th(ov) 16.5 18 20.5 v overvoltage shutdown hysteresis (device ?off? to ?on?) v h(ov) 0.3 0.6 1.0 v operating voltage lower threshold (? 40 c t a + 85 c) v cc ? 7.5 8.0 v 3. the upper or lower hysteresis will be lost when operating the input, pin 3, close to the respective rail. refer to figure 4. 4. low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as poss ible.
mc33030 http://onsemi.com 5 v sat , output saturation voltage (v) v icr , input common?mode range (v) a vol , open?loop voltage gain (db) , excess phase (degrees) vsat, output saturation voltage (v) v icr , input common?mode range (mv) v cc v io = 20 mv r l = 100 k gnd 25 3.0 k 100 1.0 k 300 v cc 30 0 1.0 ? 2.0 2.0 ? 1.0 0 i l , load current ( a) 100 50 75 0 ? 25 t a , ambient temperature ( c) ? 55 0 400 800 ? 800 ? 400 figure 1. error amp input common?mode voltage range versus temperature figure 2. error amp output saturation versus load current 0 v cc 0 255075100 0 0 ? 0.5 ? 1.0 ? 1.5 0.3 0.2 0.1 gnd ? 25 t a , ambient temperature ( c) 12 5 max. pin 2 v icr so that pin 3 can change state of drive outputs. ? 55 180 135 90 45 0 figure 3. open loop voltage gain and phase versus frequency phase v cc = 14 v out = 7.0 v r l = 100 k c l = 40 pf t a = 25 c phase margin = 63 1.0 10 100 10 k 100 k 1.0 m 1.0 k f, frequency (hz) 60 80 40 20 0 gain figure 4. window detector reference?input common?mode voltage range versus temperature i l , load current ( ma) v cc = 14 v pin 2 = 7.00 v 6.85 v 3 v 2 t a , ambient temperature ( c) 6.95 6.90 7.10 7.05 7.00 7.15 0 25 50 75 100 0 ? 1.0 1.0 0 v cc sink saturation r l = v cc t a = 25 c v 1 ? 55 ? 25 125 gnd figure 5. window detector feedback?input thresholds versus temperature 0 200 400 600 80 0 lower hysteresis figure 6. output driver saturation versus load current source saturation r l to gnd t a = 25 c upper hysteresis v 4 gnd source saturation r l to gnd t a = 25 c sink saturation r l to v cc t a = 25 c 125 v fb , feedback?input voltage (v)
mc33030 http://onsemi.com 6 v th(oc) , overcurrent delay threshold voltage (normalized) i dly , delay pin source current (normalized) i source , output source current (ma) i source , output source current (ma ) i f , forward current (ma) figure 7. brake diode forward current versus forward voltage v f , forward voltage (v) t a = 25 c figure 8. output source current?limit versus overcurrent reference resistance 1.5 r oc , overcurrent reference resistance (k ) v cc = 14 v t a = 25 c 800 80 60 40 020 600 400 1.1 0.9 0.7 0.5 0 1.3 100 200 300 400 10 0 0 200 500 t a , ambient temperature ( c) figure 9. output source current?limit versus temperature ? 55 v cc = 14 v ? 25 0 t a , ambient temperature ( c) 1.00 0.96 0.92 0.88 ? 55 12 5 25 50 100 75 1.04 25 r oc = 27 k r oc = 68 k r oc = 15 k 125 75 50 0 ? 25 100 v cc = 14 v 0 400 600 200 figure 10. normalized delay pin source current versus temperature figure 11. normalized overcurrent delay threshold voltage versus temperature figure 12. supply current versus supply voltage 75 100 50 25 ? 55 0.96 0.98 1.04 1.00 0 ? 25 vcc = 14 v pins 6 to 7 pins 2 to 8 t a = 25 c 125 28 24 20 1.02 24 16 32 40 0 4.0 8.0 12 v cc , supply voltage (v) t a , ambient temperature ( c) over? voltage shutdown range 8.0 016 minimum operating voltage range i cc , supply current (ma)
mc33030 http://onsemi.com 7 p d , maximum power dissipation (w) r ja , thermal resistance junction?to?air ( c/w) p d , maximum power dissipation (w) r ja , thermal resistance junction?to?air ( c/w) v th(ov) , overvoltage shutdown threshold (normalized) v th(ov) , overvoltage shutdown threshold (normalized) p d(max) for t a = 50 c r ja p d(max) for t a = 70 c r ja figure 13. normalized overvoltage shutdown threshold versus temperature ? 25 0 ? 55 12 5 1.00 t a , ambient temperature ( c) ? 25 0 75 100 50 t a , ambient temperature ( c) ? 55 125 25 50 100 75 25 figure 14. normalized overvoltage shutdown hysteresis versus temperature 0.4 0.6 0.8 1.0 1.2 1.4 1.02 0.98 0.96 30 40 50 60 70 80 90 0 0.4 0.8 1.2 1.6 2.0 2.4 0203050 40 10 l, length of copper (mm) 100 2.8 ??? ???? ???? ???? ??? ??? ??? 2.0 oz. copper graph represents symmetrical layout 3.0 mm l l figure 15. p suffix (dip?16) thermal resistance and maximum power dissipation versus p.c.b. copper length 0 0 ??? ??? graphs represent symmetrical layout 3.0 mm printed circuit board heatsink example l l 100 80 60 40 20 10 20 30 40 50 l, length of copper (mm) 5.0 4.0 3.0 2.0 1.0 0 2.0 oz copper ?? ?? figure 16. dw suffix (sop?16l) thermal resistance and maximum power dissipation versus p.c.b. copper length
mc33030 http://onsemi.com 8 operating description the mc33030 was designed to drive fractional horsepower dc motors and sense actuator position by voltage feedback. a typical servo application and representative internal block diagram are shown in figure 17. the system operates by setting a voltage on the reference input of the window detector (pin 1) which appears on (pin 2). a dc motor then drives a position sensor, usually a potentiometer driven by a gear box, in a corrective fashion so that a voltage proportional to position is present at pin 3. the servo motor will continue to run until the voltage at pin 3 falls within the dead zone, which is centered about the reference voltage. the window detector is composed of two comparators, a and b, each containing hysteresis. the reference input, common to both comparators, is pre?biased at 1/2 v cc for simple two position servo systems and can easily be overridden by an external voltage divider. the feedback voltage present at pin 3 is connected to the center of two resistors that are driven by an equal magnitude current source and sink. this generates an offset voltage at the input of each comparator which is centered about pin 3 that can float virtually from v cc to ground. the sum of the upper and lower offset voltages is defined as the window detector input dead zone range. to increase system flexibility, an on?chip error amp is provided. it can be used to buf fer and/or gain?up the actuator position voltage which has the effect of narrowing the dead zone range. a pnp dif ferential input stage is provided so that the input common?mode voltage range will include ground. the main design goal of the error amp output stage was to be able to drive the window detector input. it typically can source 1.8 ma and sink 250 a. special design considerations must be made if it is to be used for other applications. the power h?switch provides a direct means for motor drive and braking with a maximum source, sink, and brake current of 1.0 a continuous. maximum package power dissipation limits must be observed. refer to figure 15 for thermal information. for greater drive current requirements, a method for buffering that maintains all the system features is shown in figure 30. the overcurrent monitor is designed to distinguish between motor startup or locked rotor conditions that can occur when the actuator has reached its travel limit. a fraction of the power h?switch source current is internally fed into one of the two inverting inputs of the current comparator, while the non?inverting input is driven by a programmable current reference. this reference level is controlled by the resistance value selected for r oc , and must be greater than the required motor run?current with its mechanical load over temperature; refer to figure 8. during an overcurrent condition, the comparator will turn off and allow the current source to charge the delay capacitor, c dly . when c dly charges to a level of 7.5 v, the set input of the overcurrent latch will go high, disabling the drive and brake functions of the power h?switch. the programmable time delay is determined by the capacitance value?selected for c dly . t dly v ref c dly i dly(source) 7.5 c dly 5.5 a 1.36 c dly in f this system al lows the power h?switch to supply motor startup current for a predetermined amount of time. if the rotor is locked, the system will time?out and shutdown. this feature eliminates the need for servo end?of?travel or limit switches. care must be taken so as not to select too large of a capacitance value for c dly . an overcurrent condition for an excessively long time?out period can cause the integrated circuit to overheat and eventually fail. again, the maximum package power dissipation limits must be observed. the overcurrent latch is reset upon powerup or by readjusting v pin 2 as to cause v pin 3 to enter or pass through the dead zone. this can be achieved by requesting the motor to reverse direction. an overvoltage monitor circuit provides protection for the integrated circuit and motor by disabling the power h?switch functions if v cc should exceed 18 v. resumption of normal operation will commence when v cc falls below 17.4 v. a timing diagram that depicts the operation of the drive/brake logic section is shown in figure 18. the waveforms grouped in [1] show a reference voltage that was preset, appearing on pin 2, which corresponds to the desired actuator position. the true actuator position is represented by the voltage on pin 3. the points v 1 through v 4 represent the input voltage thresholds of comparators a and b that cause a change in their respective output state. they are defined as follows: v 1 = comparator b turn?off threshold v 2 = comparator a turn?on threshold v 3 = comparator a turn?off threshold v 4 = comparator b turn?on threshold v 1 ?v 4 = comparator b input hysteresis voltage v 2 ?v 3 = comparator a input hysteresis voltage v 2 ?v 4 = window detector input dead zone range |(v 2 ?v pin2 ) ? (v pin2 ? v 4 )| = window detector input voltage
mc33030 http://onsemi.com 9 it must be remembered that points v 1 through v 4 always try to follow and center about the reference voltage setting if it is within the input common?mode voltage range of pin 3; figures 4 and 5. initially consider that the feedback input voltage level is somewhere on the dashed line between v 2 and v 4 in [1]. this is within the dead zone range as defined above and the motor will be off. now if the reference voltage is raised so that v pin 3 is less than v 4 , comparator b will turn?on [3] enabling q drive, causing drive output a to sink and b to source motor current [8]. the actuator will move in direction b until v pin 3 becomes greater than v 1 . comparator b will turn?off, activating the brake enable [4] and q brake [6] causing drive output a to go high and b to go into a high impedance state. the inertia of the mechanical system will drive the motor as a generator creating a positive voltage on pin 10 with respect to pin 14. the servo system can be stopped quickly, so as not to over?shoot through the dead zone range, by braking. this is accomplished by shorting the motor/generator terminals together. brake current will flow into the diode at drive output b, through the internal v cc rail, and out the emitter of the sourcing transistor at drive output a. the end of the solid line and beginning of the dashed for v pin 3 [1] indicates the possible resting position of the actuator after braking. inverting input overvoltage monitor drive brake logic + drive output a drive output b v cc motor 10 11 power h?switch q brake q brake overcurrent monitor overcurrent reference r oc 15 + 16 c dly overcurrent delay 5.5 a 7.5 v ref. 50 k r s over? current latch q drive s q drive r brake enable direction latch 18 v ref. gearbox and linkage gnd 4, 5,12,13 + window detector v cc reference input filter 20 k 35 a a b 3.0 k 3.0 k 35 a 20 k non? inverting input 9 input filter + v cc output 20 k 0.3 ma 8 20 k error amp error amp output filter/ feedback input figure 17. representative block diagram and typical servo application 14 q q q 100 k 2 1 q 3 6 reference input 7 100 k
mc33030 http://onsemi.com 10 if v pin 3 should continue to rise and become greater than v 2 , the actuator will have over shot the dead zone range and cause the motor to run in direction a until v pin 3 is equal to v 3 . the drive/brake behavior for direction a is identical to that of b. overshooting the dead zone range in both directions can cause the servo system to continuously hunt or oscillate. notice that the last motor run?direction is stored in the direction latch. this information is needed to determine whether q or q brake is to be enabled when v pin 3 enters the dead zone range. the dashed lines in [8,9] indicate the resulting waveforms of an overcurrent condition that has exceeded the programmed time delay. notice that both drive outputs go into a high impedance state until v pin 2 is readjusted so that v pin 3 enters or crosses through the dead zone [7, 4]. the inputs of the error amp and window detector can be susceptible to the noise created by the brushes of the dc motor and cause the servo to hunt. therefore, each of these inputs are provided with an internal series resistor and are pinned out for an external bypass capacitor. it has been found that placing a capacitor with short leads directly across the brushes will significantly reduce noise problems. good quality rf bypass capacitors in the range of 0.001 to 0.1 f may be required. many of the more economical motors will generate significant levels of rf energy over a spectrum that extends from dc to beyond 200 mhz. the capacitance value and method of noise filtering must be determined on a system by system basis. thus far, the operating description has been limited to servo systems in which the motor mechanically drives a potentiometer for position sensing. figures 19, 20, 27, and 31 show examples that use light, magnetic flux, temperature, and pressure as a means to drive the feedback element. figures 21, 22 and 23 are examples of two position, open loop servo systems. in these systems, the motor runs the actuator to each end of its travel limit where the overcurrent monitor detects a locked rotor condition and shuts down the drive. figures 32 and 33 show two possible methods of using the mc33030 as a switching motor controller. in each example a fixed reference voltage is applied to pin 2. this causes v pin 3 to be less than v 4 and drive output a, pin 14, to be in a low state saturating the tip42 transistor. in figure 32, the motor drives a tachometer that generates an ac voltage proportional to rpm. this voltage is rectified, filtered, divided down by the speed set potentiometer, and applied to pin 8. the motor will accelerate until v pin 3 is equal to v 1 at which time pin 14 will go to a high state and terminate the motor drive. the motor will now coast until v pin 3 is less than v 4 where upon drive is then reapplied. the system operation of figure 31 is identical to that of figure 32 except the signal at pin 3 is an amplified average of the motors drive and back emf voltages. both systems exhibit excellent control of rpm with variations of v cc ; however, figure 32 has somewhat better torque characteristics at low rpm.
mc33030 http://onsemi.com 11 drive/brake logic power h?switch overcurrent monitor c dly direction b feedback input less than v 4 dead zone feedback input between v 3 & v 4 direction a feedback input greater than v 2 dead zone feedback input between v 1 & v 2 reference input voltage (desired actuator position) feedback input (true actuator position) direction latch q output brake enable q brake q brake direction latch q output sink source overcurrent latch reset input high z sink high z source drive output a [1] 7.5 v v 4 v 3 v 2 comparator a non inverting input threshold comparator b inverting input threshold comparator b output [9] [8] [7] [5] drive output b [6] [4] [3] [2] figure 18. timing diagram direction b feedback input less than v 1 comparator a output window detector v 1
mc33030 http://onsemi.com 12 10 k gain 3.9 k 20 k tl173c linear hall effect sensor v cc b 9 zero flux centering v cc 6 7 8 10 k 20 k error amp ? + 9 centering adjust figure 19. solar tracking servo system r 3 ? 30 k, repositions servo during r 3 ? darkness for next sunrise. r 1 , r 2 ? cadium sulphide photocell r 1 , r 2 ? 5m dark, 3.0 k light resistance 20 k v cc 1 6 7 8 20 k 20 k error amp r 3 r 2 r 1 15 offset figure 20. magnetic sensing servo system v cc typical sensitivity with gain set at 3.9 k is 1.5 mv/gauss. servo motor controls magnetic field about sensor. servo driven wheel 0 1 input mps a20 v cc 470 470 7 6 1 ? activates drive a 0 ? activates drive b 1 v cc /2 39 k 68 k v cc 7 8 20 k error amp 8 20 k error amp 20 k 20 k 9 9 mrd3056 latch mrd3056 latch overcurrent monitor (not shown) shuts down servo when end stop is reached. overcurrent monitor (not shown) shuts down servo when end stop is reached. figure 21. infrared latched two position servo system figure 22. digital two position servo system drive a drive b v cc 100 k 100 k 22 c + 20 k r 20 k 130 k 8 7 v in 6 7 8 c 2 c 1 r 20 k 6 100 k error amp 20 k r error amp 9 9 f 0.72 rc f o 1 r 2 c 1 c 2 2 r 20k q c 1 c 2 2 r = 1.0 m c 1 = 1000 pf c 2 = 100 pf figure 23. 0.25 hz square?wave servo agitator figure 24. second order low?pass active filter
mc33030 http://onsemi.com 13 20 k 20 k for 60 hz r = 53.6 k, c = 0.05 v in 20 k 7 8 v b r 2 r 3 r 4 v a r c r/2 2c c r 8 7 6 figure 25. notch filter figure 26. differential input amplifier error amp error amp ? 9 r 1 6 + 9 ? + 20 k f notch 1 2 rc v pin6 v a r 3 r 4 r 1 r 2 r 2 r 3 C r 4 r 3 v b r 1 r r v ref r + r r v b 6 20 k r 2 set temperature cabin temperature sensor v cc r 4 r 3 r 2 t r 1 v cc 1 6 7 8 8 7 v a 20 k 20 k 20 k figure 27. temperature sensing servo system ? r 4 ? error amp + 9 + error amp in this application the servo motor drives the heat/air conditioner modulator door in a duct system. 9 r 3 v pin6 r 4 r 3 (v a Cv b ) v pin6 v cc r 4 r 3 1 r 1 r 2 1 v a
v b v ref r 4r 2 r r 1 r 3 , r 2 r 4 , r 1 r figure 28. bridge amplifier c dly 16 4.7 k v cc lm311 r oc 15 7 1 8 4 2 3 v ref v in + o.c. r s q 7.5 v 470 a d 2 d 1 d 1 q r e d 2 r e figure 29. remote latched shutdown v cc motor a direction change signal is required at pins 2 or 3 to reset the overcurrent latch. r e v f(d 1 ) v f(d 2 ) Cv be(on) i motor Ci drv(max) + b this circuit maintains the brake and overcurrent features of the mc33030. set r oc to 15 k for i drv(max) 0.5 a. from drive outputs figure 30. power h?switch buffer
mc33030 http://onsemi.com 14 6.0 v for 100 kpa (14.5 psi) pressure differential 4, 5,12,13 pressure differential reference set 1.8 k 5.0 k 5.1 k 12 v 0.01 2 1 + 15 k 15 0.01 + 16 + + motor 14 o.c. v cc = 12 v 11 10 dir. q s q r a b + 3 0.01 9 6 7 8 2.0 v for zero pressure differential figure 31. adjustable pressure differential regulator 1.0 k zero pressure offset adjust 2.0 k v cc = 12 v pressure port 1.76 k gas flow mpx11dp silicon pressure sensor vacuum port s + 1.0 k lm324 quad op amp 2.4 k 4.12 k s ? 8.06 k 1.0 k 200 200 6.2 k 5.1 k 12 k 5.1 k 20 k gain q q r s
mc33030 http://onsemi.com 15 1.0 + 10 k 1n4001 speed set mz2361 1.0 k 4.7 k figure 32. switching motor controller with buffered output and tach feedback tach + + 10 + 0.24 v cc = 12 v + 3 9 6 7 8 16 14 1.0 k mps a70 tip42 100 + 1 2 1n753 overcurrent reset 0.002 10 11 motor 100 4, 5,12,13 s r q q o.c. + q dir. r sq + 15 30 k 12 v 100 + + + s r q q o.c. + q dir. r sq + figure 33. switching motor controller with buffered output and back emf sensing + 2x?1n4001 10 k 1n753 + 12 v 1.0 k 16 8 7 6 9 3 speed set 4, 5, 12, 13 2 1 15 10 11 30 k 14 10 k overcurrent reset 1.0 10 k 20 k 1.0 + 100 + v cc = 12 v 100 100 mps a70 1.0 k motor tip42 0.24 + 10
mc33030 http://onsemi.com 16 package dimensions pdip?16 p suffix case 648c?04 issue d dim min max min max millimeters inches a 0.744 0.783 18.90 19.90 b 0.240 0.260 6.10 6.60 c 0.145 0.185 3.69 4.69 d 0.015 0.021 0.38 0.53 e 0.050 bsc 1.27 bsc f 0.040 0.70 1.02 1.78 g 0.100 bsc 2.54 bsc j 0.008 0.015 0.20 0.38 k 0.115 0.135 2.92 3.43 l 0.300 bsc 7.62 bsc m 0 10 0 10 n 0.015 0.040 0.39 1.01 notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: inch. 3. dimension l to center of leads when formed parallel. 4. dimension b does not include mold flash. 16 9 18 d g e n k c 16x a m 0.005 (0.13) t seating plane b m 0.005 (0.13) t j 16x m l a a b f t b so?16 wb case 751g?03 issue c d 14x b 16x seating plane s a m 0.25 b s t 16 9 8 1 h x 45 m b m 0.25 h 8x e b a e t a1 a l c notes: 1. dimensions are in millimeters. 2. interpret dimensions and tolerances per asme y14.5m, 1994. 3. dimensions d and e do not inlcude mold protrusion. 4. maximum mold protrusion 0.15 per side. 5. dimension b does not include dambar protrusion. allowable dambar protrusion shall be 0.13 total in excess of the b dimension at maximum material condition. dim min max millimeters a 2.35 2.65 a1 0.10 0.25 b 0.35 0.49 c 0.23 0.32 d 10.15 10.45 e 7.40 7.60 e 1.27 bsc h 10.05 10.55 h 0.25 0.75 l 0.50 0.90 q 0 7
mc33030 http://onsemi.com 17 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81?3?5773?3850 mc33030/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303?675?2175 or 800?344?3860 toll free usa/canada fax : 303?675?2176 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative

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