Motor driver ICs
2-channel reversible motor driver
BA6238A / BA6238AN / BA6239A / BA6239AN
The BA6238A, BA6238AN, BA623...
Motor driver ICs
2-channel reversible motor driver
BA6238A / BA6238AN / BA6239A / BA6239AN
The BA6238A, BA6238AN, BA6239A, and BA6239AN are monolithic ICs incorporating two reversible-motor drivers that are suitable for driving small DC brush motors. The logic input section for controlling each motor can be easily connected with
CMOSs and other control logic outputs. The torque during loading can be varied by controlling the
voltage supplied to the motor with pin 8 of the output section. With a limited number of external parts, each driver has a function of two reversible-motor drivers. FApplications VCRs and audio tape recorders FFeatures 1) Two reversible-motor driver circuits are built in. (not operable at the same time) 2) Limited number of external parts. 3) Interface with
CMOS devices. (protective resistor required when the
CMOS output is higher than 5V) FBlock diagram
4) Built-in power transistor for motor driving. 5) Built-in thermal shutdown circuit. (the circuit brakes the output when the chip temperature is increased due to such an event as motor locking)
490
Motor driver ICs
FAbsolute maximum ratings (Ta = 25_C) BA6238A / BA6238AN
BA6238A / BA6238AN / BA6239A / BA6239AN
BA6239A / BA6239AN
FRecommended operating conditions (Ta = 25_C) BA6238A / 6238AN
BA6239A / 6239AN
491
Motor driver ICs
BA6238A / BA6238AN / BA6239A / BA6239AN
FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 12V) BA6238A / BA6238AN
BA6239A / BA6239AN
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Moto...