Data Sheet No. PD60311
IRS21091(S)PbF
HALF-BRIDGE DRIVER
Features
Floating channel designed for bootstrap operation
Fully operational to +600 V
Tolerant to negative transient voltage, dV/dt
immune
Gate drive supply range from 10 V to 20 V
Undervoltage lockout for both channels
3.3 V, 5 V, and 15 V input logic compatible
Cross-conduction prevention logic
Matched propagation delay for both channels
High-side output in phase with IN input
Logic and power ground +/- 5 V offset
Internal 500 ns deadtime, and programmable
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Product Summary
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·
V
600 V max.
OFFSET
·
·
I +/-
O
120 mA / 250 mA
10 V - 20 V
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V
OUT
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·
t
(typ.)
750 ns & 200 ns
540 ns
on/off
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·
Deadtime
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up to 5 µs with one external R resistor
DT
Lower di/dt gate driver for better noise immunity
The dual function DT/SD input turns off both
channels
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Packages
RoHS compliant
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Description
The IRS21091 is a high voltage, high speed power
MOSFET and IGBT driver with dependent high- and
low-side referenced output channels. Proprietary
HVIC and latch immune CMOS technologies enable
ruggedized monolithic construction. The logic input is
compatible with standard CMOS or LSTTL output,
down to 3.3 V logic. The output drivers feature a
high pulse current buffer stage designed for minimum
8 Lead PDIP
IRS21091
8 Lead SOIC
IRS21091S
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 V.
Typical Connection
up to 600 V
VCC
VCC
VB
HO
VS
IN
IN
TO
LOAD
DT/SD
DT/SD
COM
LO
(Refer to Lead Assignments for
correct configuration). These dia-
grams show electrical connec-
tions only. Please refer to our
Application Notes and DesignTips
for proper circuit board layout.
www.irf.com
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