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NCP5181
High Voltage High and Low
Side Driver
The NCP5181 is a High Voltage Power MOSFET Driver providing
two outputs for direct drive of 2 N ? channel power MOSFETs arranged
in a half ? bridge (or any other high ? side + low ? side) configuration.
It uses the bootstrap technique to insure a proper drive of the
High ? side power switch. The driver works with 2 independent inputs
http://onsemi.com
to accommodate any topology (including half ? bridge, asymmetrical
half ? bridge, active clamp and full ? bridge … ).
IN_HI
IN_LO
V BOOT
DRV_HI
G
Features
? High Voltage Range: up to 600 V
? dV/dt Immunity ± 50 V/nsec
? Gate Drive Supply Range from 10 V to 20 V
? High and Low DRV Outputs
? Output Source / Sink Current Capability 1.4 A / 2.2 A
? 3.3 V and 5 V Input Logic Compatible
? Up to V CC Swing on Input Pins
? Matched Propagation Delays between Both Channels
? Outputs in Phase with the Inputs
? Independent Logic Inputs to Accommodate All Topologies
? Under V CC LockOut (UVLO) for Both Channels
? Pin to Pin Compatible with IR2181(S)
? These are Pb ? Free Devices
Applications
? High Power Energy Management
? Half ? bridge Power Converters
? Any Complementary Drive Converters (asymmetrical half ? bridge,
active clamp)
? Full ? bridge Converters
? Bridge Inverters for UPS Systems
PIN ASSIGNMENT
GND BRIDGE
DRV_LO V CC
8
1
SOIC ? 8 PDIP ? 8
D SUFFIX P SUFFIX
CASE 751 CASE 626
MARKING DIAGRAMS
8
5181 NCP5181P
ALYWX AWL
YYWWG
1
NCP5181P,
5181 = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb ? Free Package
PIN
FUNCTION
ORDERING INFORMATION
IN_HI
IN_LO
Logic Input for High Side Driver Output In Phase
Logic Input for Low Side Driver Output In Phase
Device
NCP5181PG
Package
PDIP ? 8
Shipping ?
50 Units/Tube
GND
DRV_LO
V CC
V BOOT
DRV_HI
BRIDGE
Ground
Low Side Gate Drive Output
Low Side and Main Power Supply
Bootstrap Power Supply
High Side Gate Drive Output
Bootstrap Return or High Side Floating Supply Return
(Pb ? Free)
NCP5181DR2G SOIC ? 8 2.500/Tape & Reel
(Pb ? Free)
?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, 2013
August, 2013 ? Rev. 7
1
Publication Order Number:
NCP5181/D
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