TIGER ELECTRONIC CO.,LTD REVERSIBLE MOTOR DRIVER BA6208/BA6208F DESCRIPTION Outline Drawing The BA6208/BA6208BF are monolithic ICs used for driving reversible mo tors. They allow control of reversible motors in BA6208 cassette players and other electrical equipment by using TTL-level logic signals. The ICs contain a logic section, which controls forward and reverse rotations as well as forced stop, and an output power section, SIP9 which can supply an output current of up to 100mA (typical) according to the logic control. BA6208F FEATURE Motor driving power transistors are built in (100mA typically) Brake is applied when stopping the motor SOP8 (when in-puts A and B are both HIGH level). Built-in diode to absorb surge currents. Very low standby circuit current when inputs A and Bare both LOW level. Wide range of operating supply voltage (4.5~15.0V). Direct control with the TTL logic. 1/4 BA6208/BA6208F BLOCK DIAGRAM 6(1) Q10 R11 Q2 R21 Q11 Q7 Q14 Q8 R2 R13 R14 R30 Q5 R4 Q15 R12 7(2) R5 D1 R25 Q16 R23 R22 R3 R32 Q17 Q12 Q4 Q3 R26 R31 R1 5(3,7) GND Vcc Q9 8(4) A OUT Q13 BOUT R28 R8 3(8) 2(5) R15 R9 Q1 R27 R20 R24 D2 R29 R6 Q6 Q18 R18 Q19 AIN BIN R16 R7 R19 Q20 R17 R10 Note: Figures in parentheses are for the SOP8 PIN CONNECTION BA6208 1 2 3 4 NC BIN A IN NC 5 BA6208F 6 GND Vcc 7 BOUT 8 AOUT 9 NC 2/4 BA6208/BA6208F ABSOLUTE MAXIMUM RATINGS (Ta=25°C) Characteristic Symbol Value Unit Power Supply Vo ltage Vcc 18 V Maximum Output Current Io 500 mA Power Dissipation PD 700 mW Operating Temperature Topr -20~60 °C Storage Temperature Tstg -55~125 °C Note: Reduced by 7 mW for each increase in Ta of 1°C over 25 °C ELECTRICAL CHARACTERISTICS (unless otherwise specified: Ta=25°C, Vcc=9V) Characteristics Test conditions Output Current Output saturation voltage Io=100mA Io 200 When input A and B both LOW level V I H =4.5V Typ. Max. Unit mA 1.0 VIH Input low level voltage Input high level current Min. VCE Input high level voltage Standby supply current Symbol 1.6 2.0 V V VIL 0.8 V IST 0.4 mA 400 µA IIH 250 A diode that absorbs at least 500 mA is built in to give protection against surge currents with a pulse width of 10 ms and a duty ratio of 10% or less. RECOMMENDED OPERATING CONDITIONS (Ta=25 °C) Parameter Symbol Min. Power supply voltage Vcc 4.5 Typ. Max. Unit 15 V INPUT TRUTH TABLE 3pin (Ain) 2pin (Bin) 8pin (Aout) 7pin (Aout) H L H L L H L H H H L L L L OPEN OPEN 3/4 BA6208/BA6208F APPLICATION CIRCUIT SIP9 Package BA6208 SOP8 Package BA6208F 4/4