www.irf.com 5
IR2108
(
4
)
(
S
) & (PbF)
14 Lead PDIP 14 Lead SOIC
IR21084 IR21084S
Lead Assignments
8 Lead PDIP 8 Lead SOIC
1
2
3
4
8
7
6
5
V
CC
HIN
LIN
COM
V
B
HO
V
S
LO
1
2
3
4
8
7
6
5
V
CC
HIN
LIN
COM
V
B
HO
V
S
LO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
HIN
LIN
DT
VSS
COM
LO
V
B
HO
V
S
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
HIN
LIN
DT
VSS
COM
LO
V
B
HO
V
S
Lead Definitions
Symbol Description
HIN Logic input for high side gate driver output (HO), in phase (referenced to COM for IR2108 and
VSS for IR21084)
Logic input for low side gate driver output (LO), out of phase (referenced to COM for IR2108
and VSS for IR21084)
DT Programmable dead-time lead, referenced to VSS. (IR21084 only)
VSS Logic Ground (21084 only)
V
B
High side floating supply
HO High side gate driver output
V
S
High side floating supply return
V
CC
Low side and logic fixed supply
LO Low side gate driver output
COM Low side return
LIN
IR2108 IR2108S
