40A DrMOS Power Module with Integrated Diode Emulation and Thermal Warning Output

The ISL99140 is a high performance DrMOS power module designed for high frequency power conversion. By combining a high performance FET driver and MOSFETs in an advanced package, high density DC/DC converters can be created. Combined with an Intersil PWM controller, a complete voltage regulator solution can be created with reduced external components and minimum overall PCB real estate.

The ISL99140 features a three-state PWM input that, working together with Intersil’s multiphase PWM controllers, will provide a robust solution in the event of abnormal operating conditions. To further support robust applications, the ISL99140 features a thermal warning output that can be used to notify the power system of an impending thermal fail event.

Features

• Compliant with Intel DrMOS revision 4.0 specifications

• 40A average output current capability

• Supports 3-state 3.3V PWM input

• Supports 2-state 5V PWM input

• Thermal warning output

• Diode emulation option

• Adaptive shoot-through protection

• Integrated high-side gate-to-source resistor to prevent self

turn-on due to high input bus dV/dt

• Undervoltage lockout

• Switching frequencies up to 2MHz

• Pb-free (RoHS compliant)

• 6x6 QFN package

Applications

• High frequency and high efficiency VRM and VRD

• Core, graphic, and memory regulators for microprocessors

• High density VR for server, networking, and cloud computing

• POL DC/DC converters and video gaming consoles