62911hkpc 018-08-0008/70908hkim no. a0762-1/10 stk681-320 overview the stk681-320 is a hybrid ic for use in current control forward/reverse dc motor driver with brush. applications ? office photocopiers, printers, etc. features ? allows forward, reverse, and brake operations in accordance with the external input signal. ? 5.2a startup output current and 8a peak brake output current. ? incorporating a current detection resistor (0.056 ), fixed current control is possible. ? obviate the need to design for the dead time in order to turn off the upper- and lower drive devices when switching between the forward and reverse operation mode. specifications absolute maximum ratings at tc = 25 c parameter symbol conditions ratings unit maximum supply voltage 1 v cc 1 max v cc 2=0v 52 v maximum supply voltage 2 v cc 2 max no signal -0.3 to +7.0 v input voltage v in max logic input pins -0.3 to +7.0 v output current i o max v cc 2=5.0v, dc current 5.2 a brake current i o b max v cc 2=5.0v, square wave current, operating time 60ms (single pulse) 8a allowable power dissipation pdpk max no heat sink 3.1 w operating substrate temperature tc max 105 c junction temperature tj max 150 c storage temperature tstg -40 to +125 c ordering number : ena0762a thick-film hybrid ic forward/reverse motor driver specifications of any and all sanyo semiconductor co.,l td. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer ' s products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general el ectronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use.
stk681-320 no. a0762-2/10 allowable operating ranges at ta = 25 c parameter symbol conditions ratings unit operating supply voltage 1 v cc 1 with signals applied 10 to 42 v operating supply voltage 2 v cc 2 with signals applied 55% v input voltage v in 0 to v cc 2v output current 1 i o 1 v cc 2=5.0v, dc current, tc 70 c 5.2 a output current 2 i o 2 v cc 2=5.0v, dc current, tc=90 c 4.2 a output current 3 i o 3 v cc 2=5.0v, dc current, tc=105 c 3.5 a brake current i o b v cc 2=5.0v, square wave current, operating time 3.6ms, tc=105 c 8a refer to the graph for each conduction-period toleranc e range for the output current and brake current. electrical characteristics at tc = 25 c, v cc 1 = 24v, v cc 2 = 5.0v parameter symbol conditions min typ max unit v cc 2 supply current i cco forward or reverse operation 1.7 4 ma fet diode forward voltage vdf if=1a (r l =23 ) 0.8 1.4 v output saturation voltage 1 vsat1 r l =23 , f1, f2 0.14 0.20 v output saturation voltage 2 vsat2 r l =23 , f3, f4+current detection resistance 0.16 0.23 v output leak current i ol f1, f2, f3, and f4 off operation 50 a input high voltage 1 v ih 1 in1, in2 pins 4.5 v input high voltage 2 v ih 2 inh pin 2.5 v input low voltage v il in1, in2, inh pins 0.6 v input current 1 i ih 1 in1, in2 pins, v ih 1=5v 0.10 0.20 0.40 ma input current 2 i ih 2 inh pin, v ih 2=5v 0.30 0.60 1.2 ma current set ting voltage vref1 between pins vref1 and s.p 0.29 v note: a fixed-voltage power supply must be used. package dimensions unit:mm (typ) 29.2 25.6 (20.47) (5.0) (12.9) (5.6) 1.0 4.2 8.2 (20.4) 0.52 0.4 4.5 119 7.2 14.5 11.0 (5.0) (r1.7) (3.5) 2.0 14.5 14.4 18 1.0=18.0
stk681-320 no. a0762-3/10 derating curve of motor current, i o, vs. stk681-320 operatin g board temperature, tc the range of dc operating current lies w ithin the above derating curve in the v cc 1 allowable operating range. the above motor current i o is valid within the chopping operating range of dc operating. the above operating substrate temperature, tc, is measured immediately when the motor is started. since tc fluctuates due to the ambient temperature, ta, the motor current value, and continuous or intermittent operations of the motor current, always co nfirm this values using an actual set. stk681-320 allowable brake current range 6 1 0 080 20 40 60 100 70 10 30 50 90 110 itf02521 4 5 3 2 i o - tc operating substrate temperature, tc- c motor current, i o - a 9 2 1 0 5 6 8 7 4 3 1.0 7 5 3 2 10 7 5 3 2 100 7 5 3 2 1000 itf02494 tc=25 c 70 c 80 c 90 c 105 c i o b - t conduction time, t - ms brake current, i o b- a
stk681-320 no. a0762-4/10 internal block diagram sample application circuit v cc 1 6 out2 8 out1 v cc 1 10 nc 11 nc in1 inh 5 nc 4 nc 12 in2 82k 5.1k rs 0.056 v cc 2 vref1a vref1b vref2 rsi rso gnd s.p 13 15 16 19 3 1 2 18 17 14 itf02479 f1 f2 f3 f4 7 9 current control overheating current control v cc 2=5v 15 12 13 14 17 16 18 3 19 in1 in2 inh vref2 vref1b vref1a rso rsi s.p nc out1 out2 nc nc nc 4 5 10 11 7 9 2 8 6 1 stk681-320 + + c2 10 f/50v c1 47 f to /50v v cc 1=24v ccw cw gnd itf02478 motor
stk681-320 no. a0762-5/10 motor drive conditions (h: high-level input; l: low-level input) in1 in2 inh remarks stop 1 (standby) h h h or l when motor is not rotating h h h h l h stop 2 (supply power turned off by input during motor rotation) l h h stop signal that is applied when the motor is running and used to turn off power. forward (cw) h l l reverse (ccw) l h l no input signal is needed that turns off the upper- and lower-side drive devices when switching the rotational direction. brake l l l or h gnd side mosfet on * in1=in2=h and inh=l are prohibited during motor rotation. notes (1) be sure to set the capacitance of the power supply bypa ss capacitor, c1, so that the ri pple current of the capacitor, which varies as motor current increas es, falls within the allowed range. (2) although the vref2 pin is kept open, if connected to the gnd or s.p pin, the overheating current control circuit ceases to function. (3) fixed current chopping operations based on f1 and f2 are used for current control. the timing given below is used for out1 or out2 voltage output and for f1 or f2 drain current. (4) do not connect the n.c pins shown in the internal block diagram or sample application circuit to a circuit pattern on the pcb. (5) this ic is not designed for use in an h-bridge driver for power supplies because the i/o response time of its gnd side driving device, required when switching the motor rotational direction, is several scores of microseconds. it should be used only for dc motor drivers. out1 or out2 output voltage f1 or f2 drain current motor current 50
stk681-320 no. a0762-6/10 (6) sample timing diagram (7) smoke emission precautions: there is a possibility of smoke emission if the hybrid ic is subjected to physical or electrical damage as the result of being used without compliance with the specifications. i/o functions of each pin pin name pin no. function in1 12 input pin for turning f1 and f3 on and off at high level, f1: on and f3: off; at low level f1: off and f3: on in2 13 input pin for turning f2 and f4 on and off at high level, f2: on and f4: off; at low level, f2: off and f4: on inh 14 pin for turning f1 and f2 off; at high level f1 and f2: off this pin is usually low or open. out1 8 this pin connects to the motor and outputs source/sync current dependi ng on conditions at in1 and in2. out2 6 this pin connects to the motor and outputs source/sync current dependi ng on conditions at in1 and in2. vref1a vref1b 16 18 this pin is used for current setting for constant-cur rent operation performed with the vrefa and vrefb pins connected a voltage of 0.29v at tc=25 c results for vref1. 0.29v is set by connecting 82k and 5.1k in series. current detection resi stance is rs=0.056 . set using i o peak=vref1rs. vref2 17 be sure to usually leave this pin open. the overheating control circuit can be made to stop opera ting by connecting this pin to the gnd or s.p pin. s.p 2 vref1 voltage can be lowered by connecting a resistor between the vref1 and s.p pins. rso 3 this pin is used to monitor the voltage across the current sensing resistor, rs. must be connected to the rsi pin. rsi 19 this pin is connected to the rso pin and serves as an input to the circuit that compares the input with vref1. forward rotation brake reverse rotation in1 in2 inh stop 1 stop 2 stop 1 in1 in2 inh stop 1 stop 1 stop 2 forward rotation forward rotation forward rotation brake brake brake reverse rotation reverse rotation reverse rotation
stk681-320 no. a0762-7/10 technical information (1) substrate temperature rise , tc (no heat sink) - internal average power dissipation, pdav (2) internal average power dissipation, pd, in the dc current-motor current, i o , characteristics (typ values for pd) (3) overheating current control characteristics overheating current control functions to prevent dr iver failure if a motor lock malfunction occurs. 80 20 10 0 0 1.0 2.0 3.0 3.5 0.5 1.5 2.5 itf02508 50 70 60 40 30 tc - pdav hybrid ic internal average power dissipation, pdav - w substrate temperature rise, tc - c 10 9 8 2 1 0 0 12 3 5 4 itf02541 5 7 6 4 3 t c =1 0 5 c 2 5 c v cc 1=24v v cc 2=5.0v motor current, i o - a internal average power dissipation, pd - w pd - i o 1 0 080 20 40 60 100 70 10 30 50 90 120 110 itf02542 3 6 2 5 4 i o - tc operating substrate temperature, tc- c average current, i o - a load 2 +5mh
stk681-320 no. a0762-8/10 (4) derating curve of the package power dissipati on, pdpk, against the ambient temperature, ta the package power dissipation, pdpk, refers to the internal average power dissipation, pd, permissible if used without a heat sink 1.0 0.5 0 080 20 40 60 100 120 pdpk - ta ambient temperature, ta - c allowable power dissipation, pdpk - w itf02511 2.5 3.0 3.5 2.0 1.5 0.4 0.2 0 itf02543 1.0 1.2 1.4 0.8 0.6 1.2 1.0 0.2 0 2.5 4.0 4.5 5.0 3.0 3.5 itf02545 0.6 0.8 0.4 0123 5 401235 4 0.4 0.2 0 itf0254 4 1.0 0.8 0.6 0.3 0.1 0.9 0.7 0.5 vsat1 - v ih 1 v ih 1- v vsat1 - v v d f ( f 3 , f 4 ) v d f ( f 1 , f 2 ) tc=25 c itf02515 v s a t 1 v s a t 2 v cc 1=24v, v cc 2=5.0v, tc=25c i o =5a 2a 25 5 0 0345 12 15 20 10 vdf - if if - a vdf - v v out - v ih 1 vsat1, vsat2 - i o i o - a vsat1, vsat2 - v 12pin-gnd voltage, v ih 2- v 8pin-gnd voltage, v out - v v cc 1=24v, v cc 2=5.0v, tc=25 c, out1-out2, pin load=1k , 14pin=low 4a 3a 1a
stk681-320 no. a0762-9/10 0.1 0.01 1.0 10 23 57 100 23 57 itf02546 1.0 10 2 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7 100 0.1 1.0 10 23 57 100 23 57 itf02547 1.0 10 2 3 5 7 2 3 5 7 2 3 5 7 100 f1, f2 - a.s.o -v ds - v -i d - a 700 100 0 0 3.0 4.0 5.0 1.0 2.0 2.5 3.5 4.5 0.5 1.5 itf02518 300 400 500 600 200 v cc 1=24v, v cc 2=5.0v, tc=25 c tc=25c, tj=150c, single pulse 1 0 0 s 1 m s 1 0 ms 1 0 0 m s 1 s f3, f4 - a.s.o v ds - v i d - a tc=25c, tj=150c, single pulse 1 0 0 s 1 m s 1 0 m s 1 0 0 m s 250 50 0 0 3.0 4.0 5.0 1.0 2.0 2.5 3.5 4.5 0.5 1.5 itf02517 150 200 100 v cc 1=24v, v cc 2=5.0v, tc=25c 25 5 0 0 34 5 12 v out - v ih 2 itf02516 15 20 10 14pin-gnd voltage, v ih 2- v 8pin-gnd voltage, v out - v v cc 1=24v, v cc 2=5.0v, tc=25 c, out1-out2, pin load=1k , 12pin=high i ih 1 - v ih 1 12, 13pin-gnd voltage, v ih 1- v i ih 1- a i ih 2 - v ih 2 14pin-gnd voltage, v ih 2- v i ih 2- a 1 s
stk681-320 no. a0762-10/10 input pin configurations ps this catalog provides informati on as of june, 2011. specifications and information herein are subject to change without notice. sanyo semiconductor co.,ltd. assumes no responsibil ity for equipment failures that result from using products at values that exceed, even momentarily, rat ed values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-quality high-reliab ility products, however, any and all semiconductor products fail or malfunction with some probab ility. it is possible that these probabilistic failures or malfunction could give rise to accidents or events that c ould endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descr ibed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any oth er rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from th e use of the technical information and products mentioned above. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained he rein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor co.,ltd. products described or contained herein are controlled under any of applicable local export contro l laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. 1 1 or in1, in2 inh 14 12 13
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