SI9912 Vishay Siliconix, SI9912 Datasheet - Page 4

• Manufacturer Part Number: SI9912
• Description: Half-Bridge MOSFET Driver for Switching Power Supplies
• Manufacturer: Vishay Siliconix

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