Hardware Development Guide of Module Product
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Figure 4-1 Power-on Sequence Chart of ZM5202 Module
VPH_PWR
USB_VBUS
POWER_ON
T1
T2
T3
Figure 4-2 Power-off Sequence Chart of ZM5202 Module
POWER_ON
T5
T4
VPH_PWR
USB_VBUS
Table 4-3 Power-on/Power-off Time
Parameter
Description
Min
Typical
Max
Unit
T1
From powering on VPH_PWR to
establishing USB_VBUS
0
0.5
1
second
T2
From powering on VPH_PWR to
Power-on taking effect
1
1.5
--
second
T3
The period that the Power-on signal
for power on operation is kept on
the low PWL
0.05
0.1
--
second
T4
The period that the Power-on signal
for power off operation is kept on
the low PWL
4
5
--
second
T5
From the releasing the Power-on
button for power off operation to the
power off of VPH_PWR and
USB_VBUS
1
2
--
second
