3940 3940 ADVANCED DATASHEET – 4/9/03 (Subject to change without notice.
) H-BRIDGE POWER MOSFET CONTROLLER The A3940 was designed specifically for driving high power DC motors in automotive applications.
The A3940 provides four high current gate drive outputs capable of driving a wide range of power N-channel MOSFETs.
Bootstrap capacitors are utilized to provide the above battery supply voltage required for N-channel FETs.
An internal charge pump for the highside will allow for DC (100% duty cycle) operation of the bridge.
PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals.
Protection feature...

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