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NCP81166

Description
Synchronous Buck MOSFET Drivers
File Size71KB,9 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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NCP81166 Overview

Synchronous Buck MOSFET Drivers

NCP81166, NCP81166A
Synchronous Buck MOSFET
Drivers
The NCP81166/A 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. 2mm x 2mm DFN8
package allows for space−optimized board layout.
Zero current detect feature allows for a high−efficiency solution
even at light load conditions. Pre−OVP feature aids in protecting the
load in the event of a short across the high−side FET. V
CC
UVLO
ensures the MOSFETs are off when supply voltages are low. A
bi−directional Enable pin provides a fault signal to the controller
when a pre−OVP or UVLO fault is detected.
Features
http://onsemi.com
1
DFN8
MN SUFFIX
CASE 506CN
Space−Efficient 2 mm x 2mm DFN8 Thermally−Enhanced Package
V
CC
Range of 4.5 V to 13.2 V
Integrated Bootstrap Diode
Pre−OVP Function Protects Load during HS FET Short
NCP81166: 2.25 V SW Trip Threshold
NCP81166A: 1.8 V SW Trip Threshold
Zero Current Detect Function Provides Power Saving Operation
during Light Load Conditions
Bi−directional Enable Feature pulls Enable pin low during pre−OVP
and UVLO Faults
5 V tri−state PWM Logic
Adaptive Anti−Cross−Conduction Circuit Protects against
Cross−Conduction during FET turn−on and turn−off
Output Disable Control turns off both MOSFETs via Enable pin
VCC Undervoltage Lockout
Direct interface to ASP1252, ASP1400 and other compatible PWM
Controllers
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
MARKING DIAGRAM
1
XXMG
G
XX = Specific Device Code
CE for NCP81166
CH for NCP81166A
M = Date Code
G
= Pb−Free Device
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
NCP81166MNTBG
NCP81166AMNTBG
Package
DFN8
(Pb−Free)
DFN8
(Pb−Free)
Shipping
3000 / Tape &
Reel
3000 / Tape &
Reel
Typical Applications
Power Solutions for Desktop Systems
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
©
Semiconductor Components Industries, LLC, 2015
1
January, 2015 − Rev. 2
Publication Order Number:
NCP81166/D

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