NCP81075 Datasheet (ON Semiconductor)

NCP81075, Dual MOSFET

Pin No.

SOIC/DFN8 Pin No.

WDFN10 1 1 2 2 3 3 4 4 5 7 6 8 7 9 8 10 * 5,6 Symbol VDD HB HO HS HI LI VSS LO NC NCP81075 Description Positive Supply to the Lower Gate Driver High Side Bootstrap Supply High Side Output High *Side Source High *Side Input Low

Dual MOSFET Gate Driver, High Performance NCP81075 Introduction The NCP81075 is a high performance dual MOSFET gate driver optimized to drive the gates of both high and low side power MOSFETs in a synchronous buck converter.

The NCP81075 uses an on chip bootstrap diode to eliminate the external discrete diode.

A high floating top driver design can accommodate HB voltage as high as 180 V.

The low side and high side are independently controlled and match to 4 ns between the

NCP81075 Features

* Drives Two N-Channel MOSFETs in High-Side and Low-Side Configuration

* Floating Top Driver Accommodates Boost Voltage up to 180 V

* Switching Frequency up to 1 MHz

* 20 ns Propagation Delay Times

* 4 A Sink, 4 A Source Output Currents

* 8 ns Rise / 7