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product structure : silicon monolithic integrated circuit this product has no designed protection against radioactive rays . 1/ 27 ts z02201 - 0h1h0b101160 - 1 - 2 ? 20 1 5 rohm co., ltd. all rights reserved. 08.sep.2015 rev.001 tsz22111 ? 1 5 ? 001 www.rohm.com dc brushless fan motor drivers three - phase full - wave fan motor driver b d 6717 3 nux general description BD67173NUX is a three - phase sensorless fan motor driver used to cool off notebook pcs. it is controlled by a variable speed provided through the pwm in put signal. its feature is sensorless drive which doesnt require a hall device as a location detection sensor and motor downsizing can be achieved by limiting the number of external components as much as possible. furthermore, introducing a direct pwm so ft switched driving mechanism achieves silent operations and low vibrations. features ? speed controllable by pwm input signal ? sensorless drive ? soft switched drive quick start ? power save function ? internal rnf resistance ? quick start functio n applications ? sm all fan motor for notebook pcs etc. key specification s ? operating supply voltage range: 2.2v to 5.5v ? operating temperature range: - 25c to +95c package (s) w(typ) x d(typ) x h(max) vson010x3030 3.00mm x 3.00mm x 0.60mm typical appl ication circuit (s) vson010x3030 t t 1 pin D D s s i i g g p p w w m m fg com vcc u fr pwm tosc gnd v m vcc vcc 2200pf 10kohm 10kohm 1uf ~4.7uf datashee t
2 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux contents general description ................................ ................................ ................................ ................................ ...................... 1 features ................................ ................................ ................................ ................................ ................................ ........ 1 applications ................................ ................................ ................................ ................................ ................................ ... 1 key specifications ................................ ................................ ................................ ................................ ......................... 1 package(s) w(typ) x d(typ) x h(max) ................................ ................................ ................................ ..... 1 typical application circuit(s) ................................ ................................ ................................ ................................ ......... 1 pin configuration(s) ................................ ................................ ................................ ................................ ...................... 3 pin description(s) ................................ ................................ ................................ ................................ ......................... 3 block diagram(s) ................................ ................................ ................................ ................................ .......................... 3 absolute maximum ratings (ta = 25c) ................................ ................................ ................................ ....................... 4 recommended operating conditions (ta= - 25c to +95c) ................................ ................................ ........................ 4 electrical characteristics (unless otherwise specified v cc =5v ta=25c) ................................ ................................ .... 5 typical performance curves ................................ ................................ ................................ ................................ ......... 6 application circuit example (constant values are for reference) ................................ ................................ ................ 10 power dissipation ................................ ................................ ................................ ................................ ....................... 21 operational notes ................................ ................................ ................................ ................................ ....................... 23 marking diagrams ................................ ................................ ................................ ................................ ....................... 26 physical dimension, tape and reel information ................................ ................................ ................................ ........ 27
3 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux pin con f iguration pin descriptio n(s) pin no. pin name function 1 fg fg output pin 2 com coil midpoint pin 3 vcc power supply pin 4 u u phase output pin 5 fr motor rotation direction select pin 6 w w phase output pin 7 v v phase output pin 8 gnd gnd pin 9 tosc start - up oscillation pin 10 pwm pwm signal input pin block diagra m 1 2 (top view) fg com vcc u fr pwm tosc gnd v w figure 1. pin configuration figure 2. block diagram pre - driver tsd uvlo osc vreg control duty pwm 10 v 7 w 6 vcc 3 u 4 fr 5 fg signal output 1 tosc 9 gnd 8 com 2 comp . bemf control logic comp . cs vcs tosc
4 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux absolute ma ximum ratings (ta = 25c) parameter symbol limit unit supply voltage vcc 7 v power dissipation pd 0.58 *1 w operating temperature topr 25 to +95 c storage temperature tstg 55 to +150 c output voltage vomax 7 v output current iomax 700*2 ma fg signal output voltage vfg 7 v fg signal output current ifg 10 ma junction temperature tj 150 c *1 reduce by 4.64mw/c over ta=25c. (on 74.2mm74.2mm1.6mm glass epoxy board) *2 this value is not to exceed pd recommended operating conditions (ta= - 25 c to + 9 5 c ) parameter symbol min typ max unit operating supply voltage range v cc 2.2 5 5.5 v input voltage range(pwm, fr ) v in 0 - vcc v
5 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux electrical characteristics ( unless otherwise specified v cc = 5 v ta=25 c ) para meter symbol min typ max unit conditions ref. data circuit current stb i cst - 15 30 ua fr=open fig. 3 circuit current i cc 1.8 4.2 6.6 ma fig. 4 pwm input h level v ph 2.5 - vcc v pwm input l level v pl 0 - 0.7 v pwm input current h i ph - 0 1 ua pwm=vcc fig. 5 pwm input current l i pl - 30 - 15 - ua pwm=gnd fig. 6 input frequency f pwm 10 - 50 khz fr input h level v frh 2.5 - vcc v fr=h : normal rotation fr input l level v frl 0 - 0.5 v fr=l; reverse rotation fr input curre nt h i frh - 0 1 ua fr=vcc fig. 7 fr input current l i frl - 50 - 25 - ua fr=gnd fig. 8 tosc frequency f tosc 28 40 52 khz tosc - gnd 2200pf tosc charge current i ctosc - 125 - 100 - 75 ua tosc=0.5v fig. 9 tosc discharge current i dtosc 75 100 125 ua tos c=1.0v fig. 10 fg low voltage v fgl - 0.12 0.3 v ifg
6 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux t ypical performance curves figure 3 circuit current stb figure 4 circuit current figure 5 pwm input current h figure 6 pwm input current l operating range 95 c 25 c 2 5 c 95 c operating range 25 c 2 5 c 95 c 25 c 2 5 c 95 c 25 c 2 5 c 0 5 10 15 20 25 30 35 40 45 50 0 1 2 3 4 5 6 7 supply voltage: vcc[v] circuit current: icc[ua] 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 supply voltage: vcc[v] circuit current: icc[ma] -0.10 -0.08 -0.06 -0.04 -0.02 0.00 0.02 0.04 0.06 0.08 0.10 0 1 2 3 4 5 6 7 supply voltage: vcc[v] pwm input current h: ipwmh[ua] -18 -16 -14 -12 -10 -8 -6 -4 -2 0 0 1 2 3 4 5 6 7 supply voltage: vcc[v] pwm input current l: ipwml[ua]
7 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux t ypical performance curves 2 figure 7 fr input current h figure 8 fr input current l f igure 9 tosc charge current figure 10 tosc discharge current 25 c 25 c 95 c 25 c 25 c operating range operating range 95 c 95 c 25 c 2 5 c 95 c 25 c 2 5 c -120.0 -110.0 -100.0 -90.0 -80.0 0 1 2 3 4 5 6 7 supply voltage: [v] tosc charge current: [ua] 80 90 100 110 120 0 1 2 3 4 5 6 7 supply voltage: [v] tosc discharge current: [ua] -0.10 -0.08 -0.06 -0.04 -0.02 0.00 0.02 0.04 0.06 0.08 0.10 0 1 2 3 4 5 6 7 supply voltage: vcc[v] fr input current h: ipwmh[ua] -30 -25 -20 -15 -10 -5 0 0 1 2 3 4 5 6 7 supply voltage: vcc[v] fr input current l: ipwml[ua]
8 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux t ypical performance curves 3 figure 1 1 fg output low voltage (vcc=5v) figure 1 2 fg output low voltage (ta=25 c ) figure 1 3 output low voltage (ta=25 c ) figure 1 4 output low voltage (vcc=5v) 7 v 5v 2 .2 v 95 c 25 c 25 c 95 c 25 c 25 c 7 v 5v 2 .2 v 0.0 0.1 0.2 0.3 0 1 2 3 4 5 6 output sink current: ifg[ma] fg low voltage: vfgl[v] 0.0 0.1 0.2 0.3 0 1 2 3 4 5 6 output sink current: ifg[ma] fg output low voltage: vfgl[v] 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output sink current: io[a] output low voltage: vol[v] 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output sink current: io[a] output low voltage: vol[v]
9 / 27 tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 b d 67173nux t ypical performance curves 4 figure 1 5 output high voltage (vcc=5v) figure 1 6 out high voltage (ta=25 c ) figure 17 lock protection det . ti me figure 18 lock protection rel. time 95 c 25 c 2 5 c 5.5 v 5v 2 .2 v 95 c 25 c 25 c 95 c 25 c 25 c 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output source current: ifg[ma] output high voltage: voh[v] 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output source current: ifg[ma] output high voltage: voh[v] 0.4 0.6 0.8 1.0 1.2 1.4 0 1 2 3 4 5 6 7 supply voltage: vcc[v] lock protection rel. time: [s] 3.0 4.0 5.0 6.0 7.0 0 1 2 3 4 5 6 7 supply voltage: vcc[v] lock protection rel. time: [s]
10 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 a pplication circuit example ( c onstant values are for reference) ? the wiring patterns from the vcc terminal and gnd terminal to the bypass capacitor must be routed as short as possible. because full pmw driving becomes the factor of the noise in BD67173NUX , the value of bypass capacitor set to 4.7 uf ,2.2uf or 1uf . with respect to the wirin jsdwwhuq,wkdvehhqfrqiluphgwkdw iru 4.7uf, 2.2 uf or 1uf dwwkhe\sdvvfdsdflwrugrhvq?wfdxvhsureohpvxqghurxurshudwlrqhqylurqphqw7klvfdqehxvhgdvduhihuhqfh value to check for validity. ? when it is noisy, capacitance should be insert ed between u - com, v - com , and w - com. ? c onnect a capacitor between tosc terminal and gnd. start - up frequency can be adjusted. when tosc terminal is opened and is connected to gnd, start up o peration becomes unstable. substrate design note a) ic power, mo tor outputs, and motor ground lines are made as fat as possible. b) ic ground (signal ground) line arranged near to ( ) land. c) the bypass capacitor is arrangement near to vcc terminal. d) when substrates of outputs are noisy, add capacitor as needed. e) when back emf is large, add z ener diode as needed. fig ure 19 . pwm controllable 4 wires type (fg) motor application circuit fig ure 20 . tosc function setting tosc = pull - down tosc ok tosc ng tosc = open connect to capacitor ok tosc h 1 uf to 4 . 7 uf pwm h 2200 pf sig 0 pull - up resistance so bypass capacitor , arrangement near to vcc terminal as much as possible . the capacitor set the start - up frequency . start up synchronized time is 200 ms at 2200 pf 10 k noise measures of substrate . m measure against back bemf noise measures of substrate . noise measures of substrate .
11 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 description of function operation 1. state transition 50ms/div fig ure 21 . flow chart 200ms/div vcc on - > normal driving ch1:fg (10v/div) ch2:u (5v/div) ch3: v (5v/div) ch4:w (5v/div) 10 0ms/div ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch 4:w (5v/div) 2s/div normal driving - > lock mode - > re - start normal driving - > lock mode lock - > ton - > lock toff - > re - start ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) motor lock by hand lock lock ton normal driving re - start 5 0ms/div vcc on rotation judgment 50ms stop forward rotation forward rotation logic 9times detect others synchronized start sequence (120 drive) lock mode (output off) normal driving (150 drive) forward rotation logic no detect ( between 1sec) forward rotation logic detect (9times ) less than 100rpm more than 100000rpm output off: 5s each state stand - by mode @ pwm = input l level
12 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 2 . sensorless drive BD67173NUX is a motor driver ic for driving a three - phase brushless dc motor without a hall sensor. detecting a rotor location firstly at startup, an appropriate logic for the rotation direction is obtained using this information and given to each p hase to rotate the motor. then, the rotation of the motor induces electromotive voltage in each phase wiring and the logic based on the induced electromotive voltage is applied to the each phase to continue rotating. 2.1 motor drive output voltage and cu rrent u, v, and w the timing charts of the output signals from the u, v and w output is shown (figure 6.). the detection of the bemf voltage does with output u, v, and w (for rise and fall zero - cross) and detects the position of the motor rotation. fig ure 22 . motor drive output timing chart u output voltage position [ deg ] 0 60 120 180 240 300 360 v output voltage w output voltage 60 120 180 240 300 360 u output current v output current w output current soft switching of pmw operation
13 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 2 .2 bemf detection driving mechanism (synchronized start - up mechanism) BD67173NUX ? s start mechanism is synchronized start - up mechanism. BD67173NUX as bemf detection driving starts by set output logic and monitors bemf voltag e of motor. driving mechanism changes to bemf detection driving after detect bemf signal. when bemf signal isn ? t detected for constant time at start - up, synchronized start - up mechanism outputs output logic forcibly by using standard synchronized signal (sy nc signal) and makes motor forward drive. this assistance of motor start - up as constant cycle is synchronized driving mechanism. synchronized frequency is standard synchronized signal. figure 23 , the timing chart (outline) is shown. 3 motor start - up frequen cy vhwwlqj jhqhudwlrq of synchronized period is shown. figure 23 . synchronized start - up output timing chart 1. vcc on 2. rotation judgment 3. synchronized start sequence 4. normal drive ch1:fg (10v/div) ch2: u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 10 0ms/div start pwm=100% / tosc=2200pf / fr=open bemf detect start bemf detect start output voltage u fg signal (internal bemf signal) start bemf detect 9 times ?
14 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 * disagree with above timing chart 2.3 synchronized start - up frequency setting (tosc capacitor) the tosc terminal starts a self - oscillation by connecting a capacitor between the tosc terminal and gnd. it becomes a start - up frequency, and synchronized time. synchronized time can be adjusted by changing external capacitor. when the capacitor value is small, synchronized time becomes short. it is necessary to choose the best capacitor value for optimum start - up operation. for example external capacitor is 2200pf , synchronized time is 200ms ( typ .). 2200pf is recommended for setting value at first. relationship between external capacitor and synchronized time is shown in below. when connect tosc terminal to gnd, synchronized time is fixed and synchronized time is same as 2200pf. diagram of relat ionship between tosc terminal and synchronized time synchronized time = 8000 x tosc period charge current discharge current bemf detection 9 times successively after bemf detection 9 times successively synchronized time 8000 ?b tos h pwm duty pwm = fixed 100% pwm = same as external pwm duty electrify angle 120 ?; drive 150 ?; drive table 1. setting of electrify angle and output duty while s tart - up tosc=1000pf tosc=2200pf or gnd tosc=3300pf ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 10 0ms/div i v c x tosc tsoc tosc 2 ? tosc oscillator divider ( x 8000 ) tosc signal sync signal c tosc external capacitor synchronized time 3300pf 300ms 2200pf (recommendation) 200ms 1000pf 90ms
15 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 *setting of appropriate capacitor value appropriate value of synchronized time is differ with characteristic and parameter of moto r. appropriate value decided by start - up confirmation with various capacitor value. at first confirm start - up with 2200pf , next is 2400,2700,3000,3300pf ??? ??? P P P
16 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 2.4 motor drive output u, v, w and fg output signals in figure 25 , the timing charts of the output signals from the u, v an d w phases as well as the fg terminal is shown. assuming that a three - slot tetrode motor is used, two pulse outputs of fg are produced for one motor cycle. the three phases are excited in the order of u, v and w phases. outp ut p attern motor output motor output u motor output v motor output w fig ure 25 timing chart of u, v, w and fg output (fr = hi or no connect) table 2. truth t a ble ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 2 ms/div pwm=100% output voltage u position [ deg ] 0 60 120 180 240 300 360 soft switching of pmw operation 60 120 180 240 300 360 output voltage v output voltage w
17 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 2.5 variable speed operation about rotational speed , it changes by pwm terminal input duty of the output of the lower side a nd upper side. ( upper and lower pwm control drive method fig ure 26 ) output p att ern motor output motor output u motor output v motor output w fig. 26 timing chart of u, v a nd w output (with pwm control) table 3. truth t a ble ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 2 ms/div pwm= 5 0% output voltage u position [ deg ] soft switching of pwm operation pwm operation for external pwm control 0 60 120 180 240 300 360 60 120 180 240 300 360 output voltage v output voltage w
18 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 2.6 fg signal mask operation at start - up fg signal is masked between synch ronized start sequence and until 100ms at normal driving. s tate transition start synchronized start (120 ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch 4:w (5v/div) 10 0 ms/div vcc on synchronized start sequence normal driving 100ms pwm=100% / tosc=2200pf / fg=10kohm pull up table 4. truth t a ble fg signal motor lock by hand vcc on pwm=100% / tosc=2200pf ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 200 ms/div ton=1.0s f g=high
19 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 3.2 normal drive lock detect when you stop motor in BD67173NUX normal driving, the motor settles to the high rotation speed. lock detect judg ment of normal driving is set 2pattern s (table.4). ? R ? Q R R R Q Q 200ms/div 5 0ms/div 50ms/div ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) 2s/div normal driving - > lock mode - > re - start normal driving - > lock mode lock - > ton - > lock toff - > re - start ch1:fg (10v/div) ch2:u (5v/div) ch3:v (5v/div) ch4:w (5v/div) motor lock by hand lock lock ton normal driving re - start table 5. l o ck judgment t a ble
20 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 4. power saving function / speed control by pwm input the power saving function is controlled by an input logic of the pwm ter minal. 4.1 operate mode when the pwm terminal is high pwm terminal is open , pwm=100% operating mode, too. (internal circuit is 360k power saving function table 7. fr select t a ble table 6. uvlo judgment t a ble lock protection function active inactive active pwm output 1 ms on off on standby f mode power saving function normal mode normal mode lock protection function active inactive active pwm output 1 ms on off on standby f mode power saving function normal mode normal mode ?4?ftgxgmgqgv7} f ( 0.2 v ) ?4?ft??f (0.16 ) 0?7vh 1.25 a) f =
21 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 power dissipation permissible dissipation (total loss) indicates the power that can be consumed by ic a t ta = 25oc (normal temperature). ic is heated when it consumes power, and the temperature of ic chip becomes higher than ambient temperature. the temperature that can be accepted by ic chip depends on circuit configuration, manufacturing process, etc, and consumable power is limited. permissible dissipation is determined by the temperature allowed in ic chip (maximum junction temperature) and thermal resistance of package (heat dissipation capability). the maximum junction temperature is in general equal t o the maximum value in the storage temperature range. heat generated by consumed power of ic is radiated from the mold resin or lead frame of package. the parameter which indicates this heat dissipation capability (hardness of heat release) is called heat resi stance, represented by the symbol md>&:@7khwhpshudwxuhri,&lqvlghwkhsdfndjhfdqehhvwlpdwhge\wklvkhdwuhvlvwdqfh%horz)ljxuhvkrzvwkh model of heat resistance of the package. +hdwuhvlvwdqfhmddpelhqwwhpshudwxuh7dmxqfwlrqwhpshudwxu e tj, and power consumption p can be calculated by the equation below: above ta = 25oc, derating by 4.64 mw/oc (when glass epoxy board (single layer) of 74.2 mm x 74.2 mm x 1.6 mm is mounted) figure 29 . thermal derating curve
22 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 i/o equivalen t circuit (s) 1) power supply terminal, 2) output duty controllable 3) motor rot ation direction and ground terminal input terminal select input terminal 4) start - up oscillation 5) speed pulse signal 6) motor coil midpoint control terminal output terminal input terminal 7) motor output terminal figure 30 . i/o e quivalent circuits pwm 1 0 k hall bias 36 0 k vcc pwm vcc vcc 10 fg vcc gnd hall bias t osc vcc 1 k 1 k hall bias vcc u v w hall bias 0 .16 30k 30k 30k 51 k 51 k 51 k 1k com n hall bias 1k 1k 10 k fr 19 0 k vcc hall bias
23 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 operational notes 1. reverse connection of power supply connecting the power supply in reverse polarity can damage the ic. take precautions against reverse polarity when connecting the power supply, such a v prxqwlqj dq h[whuqdo glrgh ehwzhhq wkh srzhu vxsso\ dqg wkh ,&?v srzhu supply pins. 2. power supply lines design the pcb layout pattern to provide low impedance supply lines. furthermore, connect a capacitor to ground at all power supply pins. consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. ground voltage ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition. ensure that no pins are at a volta ge below that of the ground pin at any time, even during transient condition. however, pins that drive inductive loads (e.g. motor driver outputs, dc - dc converter outputs) may inevitably go below ground due to back emf or electromotive force. in such cases , the user should make sure that such voltages going below ground will not cause the ic and the system to malfunction by examining carefully all relevant factors and conditions such as motor characteristics, supply voltage, operating frequency and pcb wiri ng to name a few. 4. ground wiring pattern when using both small - signal and large - current ground traces, the two ground traces should be routed separately but connected to a single ground at the reference point of the application board to avoid fluctuations in the small - signal ground caused by large currents. also ensure that the ground traces of external components do not cause variations on the ground voltage. the ground lines must be as short and thick as possible to reduce line impedance. 5. thermal conside ration should by any chance the power dissipation rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. in case of exceeding this absolute maximum rating, increase the board size and copper area t o prevent exceeding the pd rating. 6. recommended operating conditions these conditions represent a range within which the expected characteristics of the ic can be approximately obtained. the electrical characteristics are guaranteed under the conditions of each parameter. 7. inrush current when power is first supplied to the ic, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the ic has more than one power supply. therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of connections. 8. testing on application boards when testing the ic on an application board, connecting a capacitor dir ectly to a low - impedance output pin may vxemhfwwkh,&wrvwuhvv$ozd\vglvfkdujhfdsdflwruvfrpsohwho\diwhuhdfksurfhvvruvwhs7kh,&?vsrzhuvxsso\ should always be turned off completely before connecting or removing it from the test setup during th e inspection process. to prevent damage from static discharge, ground the ic during assembly and use similar precautions during transport and storage.
24 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 operational notes C n n p + p n n p + p s u b s t r a t e g n d n p + n n p + n p p s u b s t r a t e g n d g n d p a r a s i t i c e l e m e n t s p i n a p i n a p i n b p i n b b c e p a r a s i t i c e l e m e n t s g n d p a r a s i t i c e l e m e n t s c b e t r a n s i s t o r ( n p n ) r e s i s t o r n r e g i o n c l o s e - b y p a r a s i t i c e l e m e n t s
25 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 operational notes C
26 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 ordering informatio n b d 6 7 1 7 3 n u x - e 2 part number packaging and forming specification e2: embossed tape and reel marking diagram s part number marking package orderable part number BD67173NUX vson010x3030 BD67173NUX - e2 d 6 7 1 7 3 part number marking lot number
27 / 27 BD67173NUX tsz02201 - 0h1h0b101160 - 1 - 2 ? 20 15 r ohm co., ltd. all rights reserved. 08.sep.2015 rev.001 www.rohm.com tsz22111 ? 15 ? 001 physical dimension , tape and reel information package name vson010x3030
datasheet d a t a s h e e t notice-pga-e rev.001 ? 2015 rohm co., ltd. all rights reserved. notice precaution on using rohm products 1. our products are designed and manufac tured for application in ordinary elec tronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring ex tremely high reliability (such as medical equipment (note 1) , transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (?specific applications?), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, ro hm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hm?s products for specific applications. (note1) medical equipment classification of the specific applications japan usa eu china class class class b class class class 2. rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohm?s products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified bel ow), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4. the products are not subjec t to radiation-proof design. 5. please verify and confirm characteristics of the final or mounted products in using the products. 6. in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse. is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7. de-rate power dissipation (pd) depending on ambient temper ature (ta). when used in seal ed area, confirm the actual ambient temperature. 8. confirm that operation temperat ure is within the specified range descr ibed in the product specification. 9. rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document. precaution for mounting / circuit board design 1. when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2. in principle, the reflow soldering method must be us ed on a surface-mount products, the flow soldering method must be used on a through hole mount products. if the flow sol dering method is preferred on a surface-mount products, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification
datasheet d a t a s h e e t notice-pga-e rev.001 ? 2015 rohm co., ltd. all rights reserved. precautions regarding application examples and external circuits 1. if change is made to the constant of an external circuit, pl ease allow a sufficient margin c onsidering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2. you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own indepen dent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1. product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2. even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3. store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. use products within the specified time after opening a hum idity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohm?s internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since concerned goods might be fallen under listed items of export control prescribed by foreign exchange and foreign trade act, please consult with rohm in case of export. precaution regarding intellectual property rights 1. all information and data including but not limited to application example contain ed in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. rohm shall not have any obligations where the claims, actions or demands arising from the co mbination of the products with other articles such as components, circui ts, systems or external equipment (including software). 3. no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the products or the informati on contained in this document. pr ovided, however, that rohm will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the produc ts, subject to the terms and conditions herein. other precaution 1. this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 2. the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 3. in no event shall you use in any wa y whatsoever the products and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 4. the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties.
datasheet datasheet notice ? we rev.001 ? 2015 rohm co., ltd. all rights reserved. general precaution 1. before you use our pro ducts, you are requested to care fully read this document and fully understand its contents. rohm shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny rohms products against warning, caution or note contained in this document. 2. all information contained in this docume nt is current as of the issuing date and subj ec t to change without any prior notice. before purchasing or using rohms products, please confirm the la test information with a rohm sale s representative. 3. the information contained in this doc ument is provi ded on an as is basis and rohm does not warrant that all information contained in this document is accurate an d/or error-free. rohm shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information.

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