IR2238Q IR2238 Q IC 3 phase AC motor controller IR2238Q-ND IR 2238 Q IC MOTOR DRIVER 12.5V-20V 64MQFP SMD SMT

Features 3-PHASE AC Motor Controller IC
• 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

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 shutdown is predominantly initiated in the event of
overcurrent followed by turn-off of all six outputsf. A
shutdown input is provided for a customized shutdown 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.

VOFFSET 1200V max.
IO+/- (min.) 220mA/460mA
VOUT 12.5V - 20V
Brake (Io+/- min) 40mA/80mA
Deadtime Asymmetry Skew (max.) 145nsec
Deadtime (typ. with RDT=39kΩ) 1µsec
DESAT Blanking time (typ.) 3.0µsec
DSH, DSL input voltage
threshold (typ.) 8.0V
Soft shutdown duration time (typ.) 6.0µsec
Voltage feedback matching
delay time (max.) 125nsec