BA6209

Motor driver ICs Reversible motor driver BA6209 / BA6209N The BA6209 and BA6209N are reversible-motor drivers suitable for brush motors. Two logic inputs allow three output modes : forward, reverse, and braking. The motor revolving speed can be set arbitrarily by controlling the voltage applied to the motor with the control pin voltage VR. FApplications VCRs and cassette tape recorders FFeatures 1) Power transistors can handle a large current (1.6A maximally). 2) Brake is applied when stopping the motor. 3) Built-in function to absorb rush currents generated by reversing and braking. 4) Motor speed controlling pin. FBlock diagram 5) Small standby current. (VCC = 12V, IO = 5.5mA typically) 6) Stable operation during mode changes either from forward to reverse or vice versa. 7) Interface with CMOS devices. 386 Motor driver ICs FAbsolute maximum ratings (Ta = 25_C) BA6209 / BA6209N FRecommended operating conditions (Ta = 25_C) FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 12V) FElectrical characteristic curves 387 Motor driver ICs BA6209 / BA6209N 388 Motor driver ICs BA6209 / BA6209N FMeasurement circuit 389 Motor driver ICs FCircuit operation Input / output truth table BA6209 / BA6209N Forward / reverse control, forced stop, and rush current absorption are controlled by the combination of FIN and RIN input states. (1) Forward / reverse control circuit When FIN is HIGH and RIN is LOW, current flows from OUT1 to OUT2. When FIN is LOW...