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ON Semiconductor - Synchronous Buck MOSFET Drivers

Numéro de référence NCP81166A
Description Synchronous Buck MOSFET Drivers
Fabricant ON Semiconductor 
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NCP81166A fiche technique
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. VCC 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.
http://onsemi.com
1
DFN8
MN SUFFIX
CASE 506CN
Features
Space−Efficient 2 mm x 2mm DFN8 Thermally−Enhanced Package
VCC 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
Typical Applications
Power Solutions for Desktop Systems
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
Package
Shipping
NCP81166MNTBG
DFN8
3000 / Tape &
(Pb−Free)
Reel
NCP81166AMNTBG DFN8
3000 / Tape &
(Pb−Free)
Reel
†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
January, 2015 − Rev. 2
1
Publication Order Number:
NCP81166/D

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