General Description

The MIC5031 MOSFET driver is designed to switch an N-channel enhancement-type MOSFET from a TTL control signal in a high-side switch application. The MIC5031 provides overcurrent protection, can accommodate loads with high-inrush current, and is designed to survive automotive power disturbances. This driver is suitable for up to 30kHz PWM operation with 0 to 100 duty cycle.

Features

• +4.5V to +30V operation

• Fast gate drive (rise time = 70ns, fall time = 50ns, with 1000pF load and 5V supply)

• Overcurrent detection across MOSFET

• Overcurrent shutdown delay

• Charge pump for high-side dc applications

• TTL compatible input

• Overtemperature shutdown

• Automotive load dump protection

• Reverse battery protection

• Open-collector fault flag

• Near zero-current disable state

Applications

• Automotive power switch

• Automotive PWM control

• Circuit breaker

• PWM circuits