ST1114C Datasheet, PDF (2/7 Pages) Silicon Touch Technology Inc. – Double Coil Brushless DC Motor Predriver

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
ST1114C / ST1114L / ST1114M
ST1114C / ST1114L / ST1114M
Double Coil Brushless
DC Motor Predriver
General Specifications
These pre-driver devices are designed specifically for electronic commutation of double coil
DC motor applications. Each device is intended to be as an interface between a HALL IC
and the drivers for larger double coil load. The main functions built-in devices are such as
lock protection, automatic restart and frequency generating or rotation detecting output.
The output node “O1/O2” control the external drivers of double coil loads. The node “O1”
turns on the output current when V(HIN) is logic low. Similarly, the node “O2” turns on the
output current when V(HIN) is logic high.
Each device incorporates lock detection circuit to shut down the drivers. After the motor
locking is released, the IC will turn on external drivers by automatic self-restart circuit. The
device will shut down drivers roughly 1 to 3 seconds after the motor is locked and the
automatic self-restart circuit will try to power up the drivers about 250ms per 1 to 3 seconds.
SP-ST1114CLM-A.008
Version：A.008
Page：1