IR21091_15 Datasheet, PDF (1/8 Pages) International Rectifier – HALF-BRIDGE DRIVER

Data Sheet No. PD60191 revD
IR21091^{(S) & (PbF)}
HALF-BRIDGE 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, 5V and 15V 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 +/- 5V offset.
• Internal 500ns dead-time, and programmable
up to 5us with one external R_DT resistor
• Lower di/dt gate driver for better noise immunity
• The dual function DT/SD pin input turns off both
channels.
• Available in Lead-Free
Product Summary
V_OFFSET
600V max.
I_O+/-
V_OUT
ton/off (typ.)
120 mA / 250 mA
10 - 20V
680 & 170 ns
Dead time
500 ns
(programmable up to 5uS)
Packages
Description
The IR21091(S) are high voltage, high speed power
MOSFET and IGBT drivers with dependant high and
low side referenced output channels. Proprietary HVIC
8 Lead PDIP
8 Lead SOIC
and latch immune CMOS technologies enable rugge-
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
IN
IN
HO
SD
DT/SD V_S
COM
LO
TO
LOAD
IR21091(S)
(Refer to Lead Assignments for correct configuration). This/These diagram(s) show electrical connections
only. Please refer to our Application Notes and DesignTips for proper circuit board layout.
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