ASAHI KASEI
[AK2572]
8.4 At TXDIS Detection / Release
TXDIS detection / release sequence is shown in Figure 8-4.
Figure 8-4 TXDIS Detection / Release Sequence
VDD
10μs [Min.]
TXDIS
TXFAULT
TXFAULT operation when accelerated
start-up sequence is selected is same as that
when no temperature difference exists
No temperature
difference exists
Both of the temperature at
Rising and Falling edge of
TXDIS signal are compared
TXFAULT enable without OPTALM
TXFAULT with OPTALM enable
TXFAULT disable
2ms [Typ.]
APC Feedback
LD Current
Normal operation
Temperature
APC FB initial procedure
t_init:160ms[Typ.]
difference exists
t_off＜10μs
t_on＜1ms
TXFAULT with
OPTALM enable
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< MS0290-E-01>
2004/8
AKM [ ASAHI KASEI MICROSYSTEMS ]
