SI9912 Datasheet, PDF (4/8 Pages) Vishay Siliconix – Half-Bridge MOSFET Driver for Switching Power Supplies

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