Product Overview

Product Overview
NCP81161: MOSFET Driver, VR12.5 Compatible, Synchronous Buck
For complete documentation, see the data sheet
Product 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.
Features
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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
For more features, see the data sheet
Applications
End Products
• Vcore Power Systems
• Desktop Computers
Part Electrical Specifications
Product
Compliance
Status
Type
Number of
Drivers
Vin Max
(V)
VCC Max
(V)
NCP81161MNTBG
Pb-free
Active
MOSFET
2
35
15
Halide free
Application Diagram
Drive
Source/Si
nk Typ
(mA)
Rise Time
(ns)
Fall Time
(ns)
16
11
tp Max (ns) Package
Type
DFN-8
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016