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| www.fairchildsemi.com KA3100D Stepping Motor Driver Features * * * * * * * Built-in vertical PNP power transistors Wide supply voltage range(VCC = 2.5V ~ 7.0V) Low saturation voltage (0.4V@ 0.4A) Built-in chip enable function Built-in shoot-through current protector Built-in thermal shutdown(TSD) function Built-in current-mode control circuit (IPEAK: 1A) Description The KA3100D is a monolithic integrated circuit designed for a two-phase stepping motor driver of a FDD system. 16-SOP-225 Typical Application * Floppy disk drive * Camera stepping motor * General stepping motor Ordering Information Device KA3100D KA3100DTF Package 16-SOP-225 16-SOP-225 Operating Temp. -20 ~ +75C -20 ~ +75C Rev. 1.0.2 May. 2000. (c)2000 Fairchild Semiconductor International 1 KA3100D Pin Assignments PGND OUT3 OUT4 CE2 VS2 IN2 NC 16 15 14 13 12 11 10 9 KA3100D 1 VCC 2 CE1 3 OUT1 4 VS1 5 OUT2 6 IN1 7 SGND 8 PGND Pin Definitions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VCC CE1 OUT1 VS1 OUT2 IN1 SGND PGND NC NC IN2 OUT4 VS2 OUT3 CE2 PGND I/O I O O I I O O I Chip enable 1 Output 1 Power supply 1 Output 2 Input 1 Signal ground Power ground No connection No connection Input 2 Output 4 Power supply 2 Output 3 Chip enable 2 Power ground Pin Function Description Logic part supply voltage 2 NC KA3100D Internal Block Diagram 4 VS1 VCC 1 3 OUT1 IN1 6 Control Part1 CE1 2 5 OUT2 SGND 7 TSD & BIAS 8 PGND 13 VS2 14 IN2 11 Control Part2 OUT3 CE2 15 12 OUT4 16 PGND 10 NC 9 NC 3 KA3100D Absolute Maximum Ratings (Ta = 25C) Parameter Supply voltage Power supply voltage Output voltage Input voltage Peak output current Continuous output current Power dissipation Junction temperture Storage temperature Operating temperature Symbol VCC(MAX) VS(MAX) VOUT(MAX) VIN(MAX) IO(PEAK) IO PD TJ TSTG TA Value 9.0 9.0 VS + Vef 7.0 1 0.4 0.55 150 -40 ~ 125 -20 ~ 75 Unit V V V V A A W C C C Power Dissipation Curve 1.33 Power Dissipation : PD[W] 1.0 0.5 0 0 25 50 75 100 125 150 175 Ambient temperature, Ta [C] Power dissipation decreases at the rate of 13.6mV / C when mounted on 30mm x 30mm x 1.5mm PCB (Phenolic resin material) and used above Ta=25C. Recommended Operating Conditions (Ta = 25C) Parameter Logic circuit supply voltage Power supply voltage Symbol VCC VS Min. 2.5 2.5 Typ. Max 7.0 7.0 Unit V V 4 KA3100D Electrical Characteristics (Ta=25C, VCC=5V, VS1=3V, VS2=3V, unless specified otherwise) Parameter Supply current 1 Supply current 2 Saturation voltage 1 Saturation voltage 2 Input high level voltage Input low level voltage Input current Chip enable current Clamp diode leakge current Clamp diode voltage Symbol ICC1 ICC2 VSAT1 VSAT2 VINH VINL IIN ICE ILEAK VEF Conditions CE1, 2=0V, VINL=3V or 0V, Each CH. CE1=3V, VINL=3V or 0V, Each CH. CE1=3V, VINL=3V or 0V, IOUT=0.2A CE1=3V, VINL=3V or 0V, IOUT=0.4A VIN=3V, Each CH CE=0V, Each CH VCC=7V, VS=7V IOUT=0.4A Min. 1.8 -0.3 Typ. 0.1 12 0.2 0.4 100 100 Max. 10 18 0.3 0.6 VCC 0.7 200 200 30 1.7 Units uA mA V V V V uA uA uA V Function Descriptions IN1 & IN2 Low High Low High CE1 & CE2 High High Low Low OUT1 & OUT3 High Low Off Off OUT2 & OUT4 Low High Off Off Motor rotation Forward Reverse Stand-by Stand-by Typical Performance Characteristics vout(sat) vs io Characteristic Graph 1.0 0.8 VOUT(SAT) [V] 0.6 0.4 0.2 0 0 100 200 300 400 IO[A] 500 600 700 5 KA3100D Test Circuits SW1 VCC 104pF SW2 4 VCC VS1 1 3 OUT1 SW4 IN1 6 Control Part1 6 SW5 15 CE1 2 5 OUT2 SGND PGND 7 TSD & BIAS 8 SW3 VS2 13 14 IN2 11 Control Part2 CE2 15 12 OUT3 SW6 SW7 OUT4 6 15 PGND 16 10 NC 9 NC 6 KA3100D Typical Application Circuits VCC 104 4 VCC 1 3 IN1 VS1 OUT1 6 Control Part1 OUT2 CE1 2 5 PGND 7 TSD & BIAS 13 8 Step Motor VS2 SGND OUT3 14 IN2 From controller 11 Control Part2 CE2 15 12 OUT4 PGND 16 10 NC 9 NC 7 KA3100D DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR INTERNATIONAL. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 12/1/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
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