WT7527V
Rev. 1.01
PSONB
Parameter
Condition
PSONB= 0V
Min.
Typ.
Max.
Unit
uA
V
Input pull-up current
High-level input voltage
Low-level input voltage
160
1.8
1.2
V
TOTAL DEVICE
Parameter
Condition
PSONB= 5V
Min.
Typ.
Max.
1
Unit
mA
V
Icc Supply current
Vcc operation start up voltage
Vcc under lockout voltage
Supply voltage rising time
3.2
2.8
1
3.4
3.0
3.6
3.2
V
mS
SWITCHING CHARACTERISTICS, at Ta=-20℃~85℃
Parameter Condition
PGI to PGO Delay Time
Internal UVD/OCD delay time at Td2
power on mode (Note1)
Min.
Typ.
300
75
Max.
400
100
800
100
Unit
mS
mS
mS
mS
Td1
200
49
PGI > 1.2V
PGI < 1.2V
PGI > 1.2V
PGI < 1.2V
Td2-1
392
49
600
75
Internal UVD/OCD delay time at Td2
normal mode (Note1)
Disable UVD/OCD check
PGO to FPOB Delay Time
Under Voltage Delay Time
Over Current Delay Time
Over Voltage Delay Time
VX Delay Time
Td3
Td4
Td5
Td6
Td7
Tb1
Tb2
2
4
6
81
27
19
81
52
100
mS
µS
mS
uS
µS
40
13
9
60
20
14
60
38
73
40
24
47
PSONB De-bounce Time
PGI De-bounce Time
mS
µS
NOTE1:
When FPOB go low, the WT7527V enter the power on mode at first. And then jump to
normal mode when the UVD and OCD are right.
Weltrend Semiconductor, Inc.
Page 6
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