IR2181
(
4
) (
S
) & (PbF)
4 www.irf.com
Functional Block Diagrams
2181
LIN
UV
DETECT
DELAY
HIN
VS
HO
VB
PULSE
FILTER
HV
LEVEL
SHIFTER
R
R
S
Q
UV
DETECT
PULSE
GENERATOR
VSS/COM
LEVEL
SHIFT
VSS/COM
LEVEL
SHIFT
COM
LO
VCC
21814
LIN
UV
DETECT
DELAY
COM
LO
VCC
HIN
VSS
VS
HO
VB
PULSE
FILTER
HV
LEVEL
SHIFTER
R
R
S
Q
UV
DETECT
PULSE
GENERATOR
VSS/COM
LEVEL
SHIFT
VSS/COM
LEVEL
SHIFT
IR2181
(
4
) (
S
) & (PbF)
www.irf.com 5
Lead Assignments
8-Lead PDIP 8-Lead SOIC
Lead Definitions
Symbol Description
HIN Logic input for high side gate driver output (HO), in phase (IR2181/IR21814)
LIN Logic input for low side gate driver output (LO), in phase (IR2181/IR21814)
VSS Logic Ground (IR21814 only)
V
B
High side floating supply
HO High side gate drive output
V
S
High side floating supply return
V
CC
Low side and logic fixed supply
LO Low side gate drive output
COM Low side return
IR2181 IR2181S
1
2
3
4
8
7
6
5
HIN
LIN
COM
LO
V
B
HO
V
S
V
CC
1
2
3
4
8
7
6
5
HIN
LIN
COM
LO
V
B
HO
V
S
V
CC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
HIN
LIN
VSS
COM
LO
V
CC
V
B
HO
V
S
1
2
3
4
5
6
7
14
13
12
11
10
9
8
HIN
LIN
VSS
COM
LO
V
CC
V
B
HO
V
S
14-Lead PDIP
14-Lead SOIC
IR21814
IR21814S
IR2181
(
4
) (
S
) & (PbF)
6 www.irf.com
Figure 1. Input/Output Timing Diagram




Figure 2. Switching Time Waveform Definitions








 
 
Figure 3. Delay Matching Waveform Definitions












IR2181SPBF

Mfr. #:
Manufacturer:
Infineon Technologies
Description:
Gate Drivers High Low Side DRVR 600V 10 to 20V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union