Functional Block Diagram
IN
DEAD TIME &
SHOOT-THROUGH
PREVENTION
UV
DETECT
SD
IRS2104(S) PbF
PULSE
GEN
HV
LEVEL
SHIFT
PULSE
FILTER
Q
R
S
VB
HO
VS
VCC
LO
COM
Lead Definitions
Symbol
IN
SD
VB
HO
VS
VCC
LO
COM
Description
Logic input for high-side and low-side gate driver outputs (HO and LO), in phase with HO
Logic input for shutdown
High-side floating supply
High-side gate drive output
High-side floating supply return
Low-side and logic fixed supply
Low-side gate drive output
Low-side return
Lead Assignments
1 VCC
2 IN
3 SD
4 COM
VB 8
HO 7
VS 6
LO 5
www.irf.com
8 Lead PDIP
IRS2104PbF
1 VCC
2 IN
3 SD
4 COM
VB 8
HO 7
VS 6
LO 5
8 Lead SOIC
IRS2104SPbF
4