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  ON Semiconductor Electronic Components Datasheet  

ADP3110A Datasheet

12V MOSFET Driver

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ADP3110A pdf
ADP3110Awww.DataSheet4U.com
Dual Bootstrapped, 12 V
MOSFET Driver with Output
Disable
The ADP3110A is a single Phase 12 V MOSFET gate drivers
optimized to drive the gates of both highside and lowside power
MOSFETs in a synchronous buck converter. The highside and
lowside driver is capable of driving a 3000 pF load with a 25 ns
propagation delay and a 30 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 35 V, with transient voltages as high as 40 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
AllInOne Synchronous Buck Driver
Bootstrapped HighSide Drive
One PWM Signal Generates Both Drives
Anticross Conduction Protection Circuitry
OD for Disabling the Driver Outputs Meets CPU VR Requirement
when Used with Patented FlexModet Controller
These are PbFree Devices
Applications
Multiphase Desktop CPU Supplies
SingleSupply Synchronous Buck Converters
© Semiconductor Components Industries, LLC, 2008
August, 2008 Rev. 4
1
http://onsemi.com
8
1
SO8
D SUFFIX
CASE 751
MARKING
DIAGRAMS
8
3110A
ALYW
G
1
1
DFN8
MN SUFFIX
CASE 506BJ
18
L3E
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
PIN CONNECTIONS
BST 1
IN
OD
VCC
1
8 DRVH
SWN
PGND
DRVL
8
BST DRVH
IN SWN
OD PGND
VCC DRVL
(Top View)
ORDERING INFORMATION
Device
Package Shipping
ADP3110AKRZ
SO8
98 Units / Rail
(PbFree)
ADP3110AKRZRL SO8 2500 Tape & Reel
(PbFree)
ADP3110AKCPZRL DFN8 5000 Tape & Reel
(PbFree)
†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:
ADP3110A/D


  ON Semiconductor Electronic Components Datasheet  

ADP3110A Datasheet

12V MOSFET Driver

No Preview Available !

ADP3110A pdf
www.DataSheeOt4DU.co3m
VCC
IN 2
TSD
UVLO
START STOP
MIN DRVL
OFF TIMER
ADP3110A
FALLING
EDGE
DELAY
FALLING
EDGE
DELAY
NONOVERLAP
TIMERS
MONITOR
MONITOR
Figure 1. Block Diagram
1 BST
8 DRVH
7 SWN
4 VCC
5 DRVL
6 PGND
PIN DESCRIPTION
SO8 DFN8 Symbol
1 1 BST
2 2 IN
3 3 OD
4 4 VCC
5 5 DRVL
6 6 PGND
7 7 SWN
8 8 DRVH
Description
Upper MOSFET Floating Bootstrap Supply. A capacitor connected between BST and SW pins holds
this bootstrap voltage for the highside MOSFET as it is switched. The recommended capacitor value
is between 100 nF and 1.0 mF. An external diode is required with the ADP3110A.
LogicLevel Input. This pin has primary control of the drive outputs.
Output Disable. When low, normal operation is disabled forcing DRVH and DRVL low.
Input Supply. A 1.0 mF ceramic capacitor should be connected from this pin to PGND.
Output drive for the lower MOSFET.
Power Ground. Should be closely connected to the source of the lower MOSFET.
Switch Node. Connect to the source of the upper MOSFET.
Output drive for the upper MOSFET.
http://onsemi.com
2


Part Number ADP3110A
Description 12V MOSFET Driver
Maker ON Semiconductor
Total Page 8 Pages
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