AUIR3200S_15 Datasheet, PDF (8/19 Pages) International Rectifier – MOSFET DRIVER WITH PROTECTION AND DIAGNOSTIC

AUIR3200S
Sleep_mode / Diagnostic
Sleep_mode block manages the diagnostic and the sleep_mode. The device enters in sleep mode if input is inactive
during a delay higher than Tsleep.
IN
out
diag
internal
tdiag
tsleep
diag
tdiag
treset
Normal mode
Fault mode
sleep mode
Figure 2
Wake up sequence
To wake up the part from the sleep mode, the input must be activated at least during Twkp, then the bootstrap regulator is
switched on and the bootstrap capacitor is charged. The output will not be activated during Tpw on rst.
tsleep
IN
tpw on rst
out
twkp
sleep mode
Normal mode
sleep mode
Figure 3
IN
tpw on rst
out
twkp
sleep mode
Figure 4
Normal mode
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November 02, 2012