NCP81085 - Dual MOSFET Gate Driver
Pin No.
DFN9 Symbol 1 VDD 2 HB 3 HO 4 HS 5 NC 6 HI 7 LI 8 VSS 9 LO Description Positive Supply to the Lower Gate Driver High Side Bootstrap Supply High Side Output High *Side Source No Connect High *Side Input Low *Side Input Negative Supply Return Low Side
Dual MOSFET Gate Driver, High Performance NCP81085 Introduction The NCP81085 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 NCP81085 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 th
NCP81085 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
