ISL6622
ISL6622 is VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers manufactured by Renesas.
feature operational while VCC is below the POR threshold: the PHASE node is connected to the gate of the low side MOSFET (LGATE) via a 10k resistor, limiting the output voltage of the converter close to the gate threshold of the low side MOSFET, dependent on the current being shunted, which provides some protection to the load should the upper MOSFET(s) bee shorted.
Features
- Dual MOSFET Drives for Synchronous Rectified Bridge
- Advanced Adaptive Zero Shoot-through Protection
- Integrated LDO for Selectable Lower Gate Drive Voltage (5.75V, 6.75V, 7.75V) to Optimize Light Load Efficiency
- 36V Internal Bootstrap Diode
- Advanced PWM Protocol (Patent Pending) to Support PSI Mode, Diode Emulation, Three-State Operation
- Diode Emulation for Enhanced Light Load Efficiency
- Bootstrap Capacitor Overcharging Prevention
- Supports High Switching Frequency
- 3A Sinking Current Capability
- Fast Rise/Fall Times and Low Propagation Delays
- Integrated High-Side Gate-to-Source Resistor to Prevent from Self Turn-On due to High Input Bus d V/dt
- Pre-POR Overvoltage Protection for Start-up and Shutdown
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