Data Sheet No. PD60228
IR2238Q
Features
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Floating channel up to +1200V
“soft” over-current shutdown turns off output
Integrated desaturation circuit
Two stage turn on output for di/dt control
Integrated brake IGBT driver with protection
Voltage feedback sensing function
Separate pull-up/pull-down output drive pins
Matched delay outputs
Under voltage lockout with hysteresis band
Programmable deadtime
Hard shutdown function
3-PHASE AC Motor Controller IC
Product Summary
VOFFSET
IO+/-
(min.)
VOUT
Brake (Io+/- min)
Deadtime (typ. with RDT=39kΩ)
DESAT Blanking time
(typ.)
DSH, DSL input voltage
threshold
(typ.)
Soft shutdown duration time
(typ.)
Voltage feedback matching
delay time
(max.)
1200V max.
220mA/460mA
12.5V - 20V
40mA/80mA
145nsec
1µsec
3.0µsec
8.0V
6.0µsec
125nsec
Deadtime Asymmetry Skew
(max.)
Description
The IR2238Q is a high voltage, 3-phase IGBT driver
best suited for AC motor drive applications. Integrated
desaturation logic provides all mode of overcurrent
protection, including ground fault protection. Soft shut-
down is predominantly initiated in the event of
overcurrent followed by turn-off of all six outputsf. A
shutdown input is provided for a customized shut-
down function. The DT pin allows external resistor to
program the deadtime. Output drivers have separate
turn on/off pins with two stage turn-on output to
achieve the desired di/dt switching level of IGBT.
Voltage feedback provides accurate volts *seconds
measurement.
Package
64-Lead MQFP
Block
Diagram
15V
3
3
VCC
LIN1,2,3
HIN1,2,3
FAULT
VB1,2,3
HOP1,2,3
HOQ1,2,3
HON1,2,3
DC
BUS
(Refer to Lead
Assignments for
correct pin
configuration).
This diagram
shows electrical
connections only.
uP,Control
VCC
W
V
VCC
BRIN
SD
IR2238Q
DSH1,2,3
VS1,2,3
LOP1,2,3
LOQ1,2,3
LON1,2,3
DSL1,2,3
Motor
VFH1,2,3
VFL1,2,3
DSB
BR
DT
U
COM
VSS
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