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Datasheet rev 2.1
IRMD22141SS
IRMD22141SS Demo Board
For 3-phase / 380V motor drives
IRMD22141SS Demo Board
? Up to 1200V DC-bus capability
? Up to 50A maximum phase current
? Optional on-board phase shunt resistors
? 3 x IR22141SS devices connected in 3-
phase configuration
? On-board bootstrap supply for high-side
gate drive
? Full protection of phase-to-phase, DC-bus
and ground short circuit by monitoring IGBT
de-saturation
? Fault feedback to ground level
? Internal minimum dead time
? Anti-shoot-through management
? Undervoltage lockout
? 3.3V digital input/output CMOS compatible
Power Module
? Standard ECONO2-6PACK IGBT module
compatible
? IGBT short circuit rated up to 1200V/50A.
? Easy to mount heat-sink
IR22141SS Demo Board
(Shown with optional IGBT Power Module)
INTRODUCTION
The IRMD22141SS demo board is an evaluation board for IR22141SS gate driver. With three connected
IR22141SS (see the device datasheet), IRMD22141SS is designed to drive 3-phase power modules with
pin-out compatible to ECONO2-6PACK. The board can drive AC or Brushless motors using power modules
with up to 50A output current. The board is a flexible solution for different applications and can be
customized providing place for external components. The control signals are 3.3V CMOS compatible; three-
phase shunt resistor (with sensing pins) can be placed for current loop control; power module short circuits
are managed synchronizing the IGBT turn off in a local network. Board layout reduces the noise coupling
between high and low voltage signals and EM emissions.
IRMD2214SS + Power Module
Application Block Diagram
(Refer to connections section to
know the interface pins) This
diagram shows the main blocks and
connections of the demo board and
the external components necessary
in a typical motor drive application.
DCbus
AC/DC
Conveter
Low Voltage
Power Supply
System
Control
IR22141SS
IR22141SS
IR22141SS
3-phase
half bridge
(Power
Module)
shunt
resistor
shunt
resistor
shunt
resistor
Motor
3-phase
Current Sensor
Sep 9 , 2004
www.irf.com
page 1/22
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