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NCP3488 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP3488
Description  MOSFET Driver with Dual Outputs for Synchronous Buck Converters
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP3488 Datasheet(HTML) 1 Page - ON Semiconductor

   
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© Semiconductor Components Industries, LLC, 2006
May, 2006 − Rev. 1
1
Publication Order Number:
NCP3488/D
NCP3488
MOSFET Driver with Dual
Outputs for Synchronous
Buck Converters
The NCP3488 is a single Phase 12 V MOSFET gate driver
optimized to drive the gates of both high−side and low−side power
MOSFETs in a synchronous buck converter. The high−side and
low−side driver is capable of driving a 3000 pF load with a 25 ns
propagation delay and a 20 ns transition time.
With a wide operating voltage range, high or low side MOSFET
gate drive voltage can be optimized for the best efficiency. Internal
adaptive nonoverlap circuitry further reduces switching losses by
preventing simultaneous conduction of both MOSFETs.
The floating top driver design can accommodate VBST voltages as
high as 30 V, with transient voltages as high as 35 V. Both gate outputs
can be driven low by applying a low logic level to the Output Disable
(OD) pin. An Undervoltage Lockout function ensures that both driver
outputs are low when the supply voltage is low, and a Thermal
Shutdown function provides the IC with overtemperature protection.
Features
Thermal Shutdown for System Protection
Internal Pulldown Resistor Suppresses Transient Turn On of Either
MOSFET
Anti Cross−Conduction Protection Circuitry
Floating Top Driver Accommodates Boost Voltages of up to 30 V
One Input Signal Controls Both the Upper and Lower Gate Outputs
Output Disable Control Turns Off Both MOSFETs
Complies with VRM10.x and VRM11.x Specifications
Undervoltage Lockout
Thermal Shutdown
Thermally Enhanced Package Available
This is a Pb−Free Device
Device
Package
Shipping
ORDERING INFORMATION
SO−8
(Pb−Free)
2500 Tape & Reel
NCP3488DR2G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
MARKING
DIAGRAMS
PIN CONNECTIONS
SO−8
D SUFFIX
CASE 751
1
8
DRVL
VCC
18
PGND
OD
SWN
IN
DRVH
BST
http://onsemi.com
†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.
N3488
ALYW
G
1
8


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