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：A.007

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ST1112S

ST1112S

Single Coil Brushless DC

Motor Drivers Built-in Hall Sensor ( 2 to 7.5 Volts)

General Specifications

The device is designed specifically for electronic commutation of single coil DC motor

applications. Each device includes a HALL sensor, a frequency generator output, a lock

detection circuit to shut down the drivers for overheat prevention, and complementary

bi-directional drivers for driving and sinking large load on a single silicon chip.

If the motor rotation is stalled by external force or obstacles, overdrive current ( or lock current )

may incur coil overheat/burning.

To prevent coil overheat/burning, these devices incorporate

lock detection circuit to shut down the drivers.

After the motor locking is released, the drivers

can be powered up using an automatic self-restart circuit.

The drivers are shut down roughly

1 to 3 seconds after the motor is locked. After the drivers are shut down, the automatic

self-restart circuit will try to power up the drivers every 1 to 3 seconds.