NCP81166 Datasheet, PDF (1/9 Pages) ON Semiconductor – 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.
http://onsemi.com
1
DFN8
MN SUFFIX
CASE 506CN
Features
• 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
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
1
January, 2015 − Rev. 2
Publication Order Number:
NCP81166/D