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| Standard ICs 8-channel high current driver BA6212 The BA6212 is a monolithic IC including 8 circuits and capable of high current drive. Capable of using a current as high as 400mA, it has a strobe pin, and is thus ideal for use as a driver circuit in thermal printers. Its input can be directly coupled to CMOS devices. *Applications Thermal printers Motors Relays LEDs and other drivers *Features drive capability of 400mA (Max). 1) High current 2) 8 circuits included. 3) Equipped with a strobe pin. 4) Easy installation due to inputs and outputs being aligned in the same direction. 5) Input can be directly connected to CMOS devices. *Block diagram ST 1 2 3 4 20 N.C. 19 OUT1 18 OUT2 17 OUT3 16 OUT4 15 OUT5 14 OUT6 13 OUT7 12 OUT8 11 VCC IN1 IN2 IN3 IN4 5 IN5 6 IN6 7 IN7 8 IN8 9 GND 10 1 Standard ICs BA6212 *Absolute maximum ratings (Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Maximum output current Maximum output voltage Maximum input voltage Symbol VCC Pd Topr Tstg IOUT VOUT VIN Limits 7 1100 - 25 ~ + 75 - 55 ~ + 125 400 14 VCC Unit V mW C C mA V V *Internal circuit configuration 11 R1 7.3k INPUT Q1 2~9 R2 6.6k 1.2k R3 Q3 OUT PUT 12 ~ 19 D1 R5 270 VCC Q2 ST 1 R4 30k R6 3k Q4 Reduced by 11mW for each increase in Ta of 1C over 25C. GND SUB 10 Fig. 1 *Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 5V) Parameter Output saturation voltage 1 Output saturation voltage 2 Output leakage current 1 Output leakage current 2 Input current Input low level voltage Input high level voltage Symbol VOUT 1 VOUT 2 IOL 1 IOL 2 IIN VIL VIH Min. -- -- -- -- -- -- 3.6 Typ. 0.2 0.4 -- -- - 0.5 -- -- Max. Unit 0.3 0.6 100 100 -1 1 -- V V A A mA V V Conditions IOUT = 200mA, VIN = 1V IOUT = 400mA, VIN = 1V VIN = 3.6V, VOUT = 12V VIN = 1V, VOUT = 12V, VST = 0.3V VIN = 0V, IOUT = 0mA -- -- *Application example + 5V Drive power supply 11 S.T. input 1 2 3 4 Input 5 6 7 8 9 19 18 17 Load BA6212 16 15 14 13 12 10 Fig. 2 2 Standard ICs BA6212 *Electrical characteristic curves 500 OUTPUT CURRENT: IOUT (mA / ch) INPUT CURRENT: IIN (A) 400 - 600 16 VCC = 5V OUTPUT VOLTAGE: VOUT (V) 8 12 VCC = 5V - 400 300 8 200 Ta = 75C 100 Ta = 55C - 200 4 0 0 20 40 60 80 100 0 0 2 4 6 0 0 2 4 6 8 DUTY CYCLE: (%) INPUT VOLTAGE: VIN (V) INPUT VOLTAGE: VIN (V) Fig. 3 Maximum output current when all channels are ON simultaneously Fig. 4 Input current characteristics Fig. 5 Input threshold voltage characteristics 10 OUTPUT VOLTAGE: VOUT (V) 8 6 4 2 0 0 0.2 0.4 0.6 0.8 1.0 STROBE INPUT VOLTAGE: VST (V) Fig. 6 Strobe input characteristics *External dimensions (Units: mm) 26.3 0.3 20 11 6.5 0.3 1 4.05 0.3 0.51Min. 10 7.62 3.05 0.2 0.3 0.1 2.54 0.5 0.1 0 ~ 15 DIP20 3 |
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