IR2238Q View Datasheet(PDF) - International Rectifier

Part Name

Description

Manufacturer

IR2238Q

3-PHASE AC Motor Controller IC

International Rectifier 

IR2238Q

PW in

BRIN HIN

LIN

50%

t on

tr

50%

PWout

t off

tf

HO (HOP=HON)

LO (LOP=LON)

BR

HOQ

LOQ

90%

10%

ton1

90%

10%

50%

10%

50%

Figure 5 Switching Time Waveforms

LIN 1,2,3

t DS

5V or

3.3V

3.3V

or 5V

DSL

8V

7V

Soft Shutdown Driver Enable for all L.S. output

&

Hold Driver Enable for all H.S. output

t

DESAT4

t SS

LO 1,2,3

active

Hard Shutdown Driver Enable for all output

Figure 6.1 Low Side Desat Soft Shutdown Timing Waveform

10

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