General Description

The MIC4604 is an 85V Half Bridge MOSFET driver. The MIC4604 features fast 39ns propagation delay times and 20ns driver rise/fall times for a 1nF capacitive load. The low-side and high-side gate drivers are independently controlled. The MIC4604 has TTL input thresholds. It includes a high-voltage internal diode that helps charge the high-side gate drive bootstrap capacitor.

Features

• 5.5V to 16V gate drive supply voltage range.

• Drives high-side and low-side N-Channel MOSFETs

with independent inputs

• TTL input thresholds

• On chip bootstrap diode

• Fast 39ns propagation times

• Drives 1000pF load with 20ns rise and fall times

• Low power consumption

• Supplies undervoltage protection

• –40°C to +125°C junction temperature range

Applications

• Power inverters

• High-voltage step-down regulators

• Half, full and 3-phase bridge motor drives

• Distributed power systems

• Computing peripherals