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NCP5359A Datasheet, PDF (1/9 Pages) ON Semiconductor – Gate Driver for Notebook Power Systems | |||
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NCP5359A
Gate Driver for Notebook
Power Systems
The NCP5359A is a high performance dual MOSFET gate driver
optimized to drive the gates of both highâside and lowâside power
MOSFETs in a synchronous buck converter. Each of the drivers can
drive up to 3 nF load with a 25 ns propagation delay and 15 ns
transition time.
Adaptive nonoverlap and power saving operation circuit can
provide a low switching loss and high efficiency solution for notebook
and desktop systems.
A high floating top driver design can accommodate VBST voltage
as high as 35 V, with transient voltages as high as 35 V. Bidirectional
EN pin can provide a fault signal to controller when the gate driver
fault detect under OVP, UVLO occur. Also, an undervoltage lockout
function guarantees the outputs are low when supply voltage is low,
and a thermal shutdown function provides the IC with
overtemperature protection.
Features
⢠Faster Rise and Fall Times
⢠Thermal Shutdown Protection
⢠Adaptive Nonoverlap Circuit
⢠Floating Top Driver Accommodates Boost Voltages of up to 30 V
⢠Output Disable Control Turns Off Both MOSFETs
⢠Complies with VRM 11.1 Specifications
⢠Undervoltage Lockout
⢠Power Saving Operation Under Light Load Conditions
⢠Thermally Enhanced Package
⢠These are PbâFree Devices
Typical Applications
⢠Power Solutions for Desktop and Notebook Systems
© Semiconductor Components Industries, LLC, 2009
1
June, 2009 â Rev. 0
http://onsemi.com
MARKING
DIAGRAMS
8
8
1
SOICâ8
D SUFFIX
CASE 751
5359A
ALYW
G
1
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbâFree Package
DFN8
MN SUFFIX
1
CASE 506AA
14
AA = Device Code
M = Date Code
G = PbâFree Package
PIN CONNECTIONS
1
BST
PWM
EN
VCC
1
8
DRVH
SW
GND
DRVL
8
BST
PWM
EN
VCC
DRVH
SW
GND
DRVL
(Top View)
ORDERING INFORMATION
Device
Package
Shippingâ
NCP5359ADR2G SOICâ8
(PbâFree)
NCP5359AMNR2G DFN8
(PbâFree)
2500 Tape & Reel
3000 Tape & Reel
NCP5359AMNTBG DFN8 3000 Tape & Reel
(PbâFree)
â 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.
Publication Order Number:
NCP5359A/D
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