MIC5021 High-Speed, High-Side MOSFET Driver with Charge Pump and Overcurrent Limit Features General Description • 12V to 36V Operation • 550 ns Rise/Fall Time Driving 2000 pF • TTL-Compatible Input with Internal Pull-Down Resistor • Overcurrent Limit • Gate-to-Source Protection • Internal Charge Pump • 100 kHz Operation Guaranteed Over Full Temperature and Operating Voltage Range • Compatible with Current-Sensing MOSFETs • Current-Source Drive Reduces EMI The MIC5021 high-side MOSFET driver is designed to operate at frequencies up to 100 kHz (5 kHz PWM for 2% to 100% duty cycle) and is an ideal choice for high speed applications such as motor control, SMPS (switch mode power supplies), and applications using IGBTs. The MIC5021 can also operate as a circuit breaker with or without automatic retry. A rising or falling edge on the input results in a current source pulse or sink pulse on the gate output. This output current pulse can turn on a 2000 pF MOSFET in approximately 550 ns. The MIC5021 then supplies a limited current (
