NCP81161 Series

MOSFET Driver, VR12.5 Compatible, Synchronous Buck

Catalog

MOSFET Driver, VR12.5 Compatible, Synchronous Buck

Part	Gate Type	Supplier Device Package	Number of Drivers	Channel Type	High Side Voltage - Max (Bootstrap) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Input Type	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Driven Configuration	Package / Case	Logic Voltage - VIL, VIH	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]
ON Semiconductor NCP81161MNTBG	N-Channel MOSFET	8-DFN (2x2)	2	Synchronous	35 V	0 °C	150 °C	Non-Inverting	11 ns	16 ns	Half-Bridge	8-VFDFN Exposed Pad	1 V 2 V	Surface Mount	4.5 V	13.2 V

Catalog

MOSFET Driver, VR12.5 Compatible, Synchronous Buck

Key Features

• Faster Rise and Fall Times

• Adaptive Anti-Cross-Conduction Circuit

• Integrated Bootstrap Diode

• Pre OV function

• ZCD Detect

• Floating Top Driver Accommodates Boost Voltages of up to 35 V

• Output Disable Control Turns Off Both MOSFETs

• UnderVoltage Lockout

• Power Saving Operation Under Light Load Conditions

• Direct Interface to NCP6151 and Other Compatible PWM Controllers

• Thermally Enhanced Package

Description

The NCP81161 is a high performance dual MOSFET gate driver optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. It can drive up to 3 nF load with a 25 ns propagation delay and 20 ns transition time. Adaptive anti-cross-conduction and power saving operation circuit can provide a low switching loss and high efficiency solution for notebook and desktop systems. Bidirectional EN pin can provide a fault signal to controller when the gate driver fault detect under OVP, UVLO occur. Also, an under-voltage lockout function guarantees the outputs are low when supply voltage is low.