© Semiconductor Components Industries, LLC, 2016
January, 2016 − Rev. 8
1 Publication Order Number:
NCP5181/D
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
to accommodate any topology (including half−bridge, asymmetrical
half−bridge, active clamp and full−bridge…).
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
PIN FUNCTION
IN_HI Logic Input for High Side Driver Output In Phase
IN_LO Logic Input for Low Side Driver Output In Phase
GND Ground
DRV_LO Low Side Gate Drive Output
V
CC
Low Side and Main Power Supply
V
BOOT
Bootstrap Power Supply
DRV_HI High Side Gate Drive Output
BRIDGE Bootstrap Return or High Side Floating Supply Return
www.onsemi.com
MARKING DIAGRAMS
PDIP−8
P SUFFIX
CASE 626
Device Package Shipping
†
ORDERING INFORMATION
NCP5181P,
5181 = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
NCP5181P
AWL
YYWWG
SOIC−8
D SUFFIX
CASE 751
NCP5181PG PDIP−8
(Pb−Free)
50 Units/Tube
NCP5181DR2G SOIC−8
(Pb−Free)
2.500/Tape & Ree
†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.
IN_HI
IN_LO
GND
DRV_LO
V
BOOT
DRV_HI
BRIDGE
V
CC
5181
ALYWX
G
1
8
1
8
