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SI9912 Datasheet(PDF) 4 Page - Vishay Siliconix

Part # SI9912
Description  Half-Bridge MOSFET Driver for Switching Power Supplies
PDF  10 Pages
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9912 Datasheet(HTML) 4 Page - Vishay Siliconix

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Si9912
Vishay Siliconix
www.vishay.com
4
Document Number: 71311
S-40134—Rev. B, 16-Feb-04
PIN CONFIGURATION
GND
SO-8
5
6
7
8
Top View
2
3
4
1
OUTH
VS
IN
BOOT
VDD
SD
OUTL
PIN DESCRIPTION
Pin Number
Name
Function
1
OUTH
Output drive for upper MOSFET.
2
GND
Ground supply
3
IN
CMOS level input signal. Controls both output drives.
4
SD
Shutdown pin
5
OUTL
Output drive for lower MOSFET.
6
VDD
Input power supply
7
BOOT
Floating bootstrap supply for the upper MOSFET
8
VS
Floating GND for the upper MOSFET. VS is connected to the buck switching node and the source side of the upper MOSFET.
ORDERING INFORMATION
Part Number
Temperature Range
Package
Si9912DY
Bulk
Si9912DY-T1
−40 to 85_C
Tape and Reel
Si9912DY-T1—E3 (Lead (Pb)-Free)
Tape and Reel
Eval Kit
Temperature Range
Board Type
Si9912DB
−40 to 85_C
Surface Mount
TYPICAL WAVEFORMS
Driver On Switch Delay
Si9912 tr, tf, tpd
Driver Off Switch Delay
VS
OUTH
OUTL
IN
VS
OUTH
OUTL
IN
Si9912 tr, tf, tpd
CL = Si4412DY
CL = Si4412DY
See Figure 1
See Figure 1



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