91907 ms pc b8-8741 no. a0954-1/7 http://onsemi.com semiconductor components industries, llc, 2013 may, 2013 LB11683H overview the LB11683H is a three-phase full-wave current-linear-drive motor driver ic. it adopts a sensorless control system without the use of a hall effect device. for quieter operation, the LB11683H features a current soft switching circuit and is optimal for driving the cooling fan motors used in refrigerators, etc. functions ? current linear drive ? built-in current limiter circuit ? output stage oversaturation prevention circuit ? coil counter-electromotive fg output ? built-in thermal shutdown circuit ? beat lock prevention circuit ? lock protection circuit ? lock detection output specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 14.5 v output applied voltage v o max 14.5 v input applied voltage v i max -0.3 to v cc +0.3 v output current i o max 1.5 a pd max1 independent ic 0.8 w allowable power dissipation pd max2 mounted on a board * 1.85 w operating temperature topr -30 to +85 c storage temperature tstg -55 to +150 c * specified board: 114.3mm 76.1mm 1.6mm, glass epoxy board. monolithic digital ic three-phase sensorless motor driver orderin g numbe r : ena0954 stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above the recommended oper ating conditions is not implied. extended exposure to stresses above the recommended operating conditions may affect device reliabili ty.
LB11683H no. a0954-2/7 allowable operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage 1 v cc all operating circuits other than internal 5v reg. 5.5 to 7.0 v supply voltage 2 v cc all operating circuits. 7.0 to 13.8 v electrical characteristics at ta = 25 c, v cc = 12v ratings parameter symbol conditions min typ max unit supply current i cc vc=v cc vfc=0v 10 15 ma output saturation voltage 1 v o sat1 i o =0.4a, source+sink 1.4 2.0 v output saturation voltage 2 v o sat2 i o =0.8a, source+sink, r f =0 1.8 2.6 v mcom pin common-phase input voltage range vic 0 v cc -2 v pcout output current 1 ipcou source side -90 a pcout output current 2 ipcod sink side 90 a vcoin input current ivcoin vcoin=5v 0.1 0.2 a vco minimum frequenc y fvcomin vcoin=open cx=0.022 f 330 400 500 hz vco maximum frequency fvcomax vcoin=5v cx=0.022 f 14.8 18.5 22.3 khz c1, c2 source current ratio rsource 1-(ic1source/ic2source) -12 +12 % c1, c2 sink current ratio rsink 1-(ic1sink/ic2sink) -12 +12 % c1 source, sink current ra tio rc1 ic1source/ic1sink 50 % c2 source, sink current ra tio rc2 ic2source/ic2sink 50 % counter-electromotive fg output on voltage vol ifgo=1ma 0.4 v ct pin charge current ict1 source current 1.2 1.6 a ct pin discharge current ict2 sink current 50 77 na lock protection detection voltage vrd1 2.3 2.45 2.6 v lock protection reset voltage vrd2 1.13 1.26 1.39 v rd pin leak current irdleak 10 a rd pin output l o voltage vrdl i o =1ma 100 400 mv current limiter setting voltage 0.45 0.5 0.55 v thermal shutdown operating temperature ttsd design target * 150 180 210 c thermal shutdown hysteresis ttsd design target * 15 c *: design target value and no measurement is made.
LB11683H no. a0954-3/7 1 2 3 4 28 27 26 25 uout nc rf nc vout wout mcom nc 5 6 7 nc fc bfgo 8 9 10 11 ct rd nc nc 12 13 14 gnd gnd pcout 24 23 22 nc nc v cc 21 20 19 18 uin vin win c1 17 16 15 c2 cx vcoin top view LB11683H package dimensions unit : mm (typ) 3315 pin assignment sanyo : hsop28hc(375mil) 15.2 (6.2) 0.25 0.3 0.1 (2.25) (0.8) 0.8 2.0 10.5 7.9 (4.9) 0.65 2.7 2.45 max heat spreader 1 14 15 28 -20 0 20 40 60 80 100 85 0 2.0 1.6 1.2 0.8 0.4 0.42 0.96 pd max -- ta ambient temperature, ta -- c allowable power dissipation, pd max -- w independent ic mounted on a specified board: 114.3 76.1 1.6mm 3 glass epoxy board
LB11683H no. a0954-4/7 vco pll 8 divider upper side saturation prevention control mask circuit timing control circuit startup control circuit rotor detection circuit output drive circuit v cc mcom uout vout wout rf 0.5 gnd cx vcoin pcout 200 0.5v 0.1 f fc c2 c1 bfgc beat lock prevention circuit lock protection circuit rd ct 0.1 f 0.01 f 0.022 f 0.022 f 0.022 f 560k 0.47 f 50k 50k thermal shutdown circuit soft switching driver circuit ilb01810 block diagram
LB11683H no. a0954-5/7 pin functions pin no. symbol description pin voltage equivalent circuit 1 uout 28 vout 27 wout 3-phase motor driver output 3 rf minimum potential of 3-phase motor driver output transistor. constant current cont rol is made through detection of this voltage. the current limiter also functions by detecting this potential. 1 27 20 a 28 30k 3.9k 3.9k 30k 3 10k 21 20 19 v cc 22 v cc power supply 8 to 13.8v 26 mcom motor coil neutral point input pin. the coil voltage waveform is detected with reference to this voltage. 21 uin 20 vin 19 win coil waveform detection comparator input pin. this pin is connected to each phase output through the internal 10k resistor. 21 20 19 200 27 28 1 2k 10k 200 26 200 v cc 18 c1 17 c2 triangular wave generating capacitor connection pin. this triangular wave performs soft-switching of the coil output waveforms. 18 17 1k vreg 1/2vreg-vf v cc 2s 15 a15 a5 a 16 cx in the vco circuit, the operation frequency range and minimum operation frequency are determined by means of the capacitor value connected this pin and ground. 16 300 vreg v cc 100 a 15 vcoin vco circuit voltage input pin. the pcout pin voltage is input via cr filter. 15 50k vreg v cc 50 a 50 a 10k 1.75v continued on next page.
LB11683H no. a0954-6/7 continued from preceding page. pin no. symbol description pin voltage equivalent circuit 14 pcout vco circuit pll output 14 vreg v cc 12 13 gnd ground for all other than the output transistor 7 bfgo motor counter-electromotive voltage detection fg output (single-phase only). open collector output 7 vreg 100 a 6 fc frequency characteristics compensation pin. insertion of a capacitor between this pin and ground stops oscillation of the closed loop of current control system. 6 vreg 1k 10k 5k v cc 9 rd lock detection output. when motor is running: low-level when motor is locked: high-level open collector output 9 vreg 15k 8 ct lock protection on/off time setting capacitor connection pin. the capacitor connected between this pin and ground determines the driver on/off time when the motor is locked. 8 25k vreg v cc 2s 0.1 a1 a 15 a
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