IR21303C Datasheet, PDF (1/21 Pages) International Rectifier – 3-PHASE BRIDGE DRIVER

Data Sheet No. PD60223 rev.A
IR21303C
Features
• Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
dV/dt immune
• Gate drive supply range from 11.1 to 20V
• Undervoltage lockout for all channels
• Over-current shutdown turns off all six drivers
• Independent half-bridge drivers
• Matched propagation delay for all channels
• 2.5V logic compatible
• Outputs out of phase with inputs
• Cross-conduction prevention logic
3-PHASE BRIDGE DRIVER
Product Summary
V_OFFSET
600V max.
I_O+/-
200 mA / 420 mA
V_OUT
11.1 - 20V
t_on/off (typ.) 675 & 425 ns
Deadtime (typ.)
600 ns
Description
The IR21303C is a high voltage, high speed power MOSFET and IGBT driver with three independent high and
low side referenced output channels. Proprietary HVIC technology enables ruggedized monolithic construction.
Logic inputs are compatible with CMOS or LSTTL outputs, down to 2.5V logic. A ground-referenced opera-
tional amplifier provides analog feedback of bridge current via an external current sense resistor. A current trip
function which terminates all six outputs is also derived from this resistor. An open drain FAULT signal
indicates if an over-current or undervoltage shutdown has occurred. The output drivers feature a high pulse
current buffer stage designed for minimum driver cross-conduction. Propagation delays are matched to simplify
use at high frequencies. The floating channels can be used to drive N-channel power MOSFETs or IGBTs in
the high side configuration which operate up to 600 volts.
Typical Connection
(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 proper circuit board layout.
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