
IRS21851 S PbF
Functional Block Diagram
VCC
VCCUV
COM
5V
VREG
DETECT
HIGHSIDE CHANNLE1
VB
HIN
PULSE
GEN
LEVEL
SHIFT UP
FILTER,
LATCH
UV DETECT
DRIVER
HO
VS
Lead Definitions
Symbol
V CC
COM
V B
HO
V S
HIN
Description
Low-side supply voltage
Ground
High-side drive floating supply
High-side driver outputs
High voltage floating supply return
Logic inputs for high-side gate driver output (in phase)
Lead Assignments
1
VCC
VB
8
2
HIN
IRS21851 S
HO
7
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3
4
COM
8- Lead SOIC
VS
6
5
4