Stepping motor driver
Motor driver ICs
Stepping motor driver
BA6846FS / BA6846FV
The BA6846FS and BA6846FV are stepping motor drivers with a ...
Description
Motor driver ICs
Stepping motor driver
BA6846FS / BA6846FV
The BA6846FS and BA6846FV are stepping motor drivers with a maximum output current of 0.5A. The logic input allows three output modes : forward, reverse, and power save. The ICs have low output saturation voltage and are capable of driving motors at low supply voltage. FApplications Stepping motors for floppy disk drives FFeatures 1) Low output saturation voltage. 2) Power save circuit. 3) Thermal shutdown circuit. FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
741
Motor driver ICs
FBlock diagram
BA6846FS / BA6846FV
FPin descriptions
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Motor driver ICs
FInput / output circuits
BA6846FS / BA6846FV
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 5V, VM1, 2 = 5V)
FInput / output truth table
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Motor driver ICs
FApplication example
BA6846FS / BA6846FV
BA6846FS
BA6846FV
744
Motor driver ICs
FOperation notes (1) Control logic pins Do not apply voltage to control logic pins when the VCC voltage is not applied to the IC. The voltage of each pin should be less than VCC, if applied, and should be more than the ground voltage. (2) PCB arrangement When changing the rotational direction of a motor, a large current of up to a few hundred milliamperes can flow between the motor power supply and the PGND pin. Depending on the application, this large output current may flow back to input pins, resulting in output oscillation or other malfunctions. Make sur...
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