Data Sheet No. PD60172 Rev.G
IR2181 ( 4 )(S) & (PbF)
HIGH AND LOW SIDE DRIVER
Features
? Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
dV/dt immune
? Gate drive supply range from 10 to 20V
? Undervoltage lockout for both channels
? 3.3V and 5V input logic compatible
? Matched propagation delay for both channels
? Logic and power ground +/- 5V offset.
? Lower di/dt gate driver for better noise immunity
? Output source/sink current capability 1.4A/1.8A
? Also available LEAD-FREE (PbF)
Packages
8-Lead PDIP
IR2181
8-Lead SOIC
IR2181S
14-Lead PDIP
IR21814
14-Lead SOIC
IR21814S
IR2181/IR2183/IR2184 Feature Comparison
Description
The IR2181(4)(S) are high voltage,
Part
Input
logic
Cross-
conduction
prevention
logic
Dead-Time
Ground Pins
Ton/Toff
HIN/LIN yes
high speed power MOSFET and IGBT
drivers with independent high and low
side referenced output channels. Pro-
prietary HVIC and latch immune
CMOS technologies enable rugge-
2181 COM
HIN/LIN no none
21814 VSS/COM
2183 Internal 500ns COM
21834 Program 0.4 ~ 5 us VSS/COM
2184 Internal 500ns COM
IN/SD yes
21844 Program 0.4 ~ 5 us VSS/COM
180/220 ns
180/220 ns
680/270 ns
dized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output, down to
3.3V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver cross-
conduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high side
configuration which operates up to 600 volts.
Typical Connection
up to 600V
V CC
V CC
V B
HIN
HIN
HO
LIN
LIN
COM
V S
LO
IR2181
TO
LOAD
up to 600V
IR21814
HO
V CC
V CC
V B
HIN
HIN
V S
TO
(Refer to Lead Assignments for correct pin
configuration). This/These diagram(s) show
electrical connections only. Please refer to
our Application Notes and DesignTips for
LIN
V SS
LIN
V SS
COM
LO
LOAD
proper circuit board layout.
www.irf.com
1
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