X5001
Figure 1. Power-Up and Power-DownTiming
VTRIP
VTRIP
VCC
tPURST
0 Volts
tPURST
tF
tRPD
tR
RESET (X5001)
RESET OutputTiming
Symbol
Parameter
Min.
Typ.
Max.
Units
Reset Trip Point Voltage, X5001PT-4.5A
Reset Trip Point Voltage, X5001PT-4.5
Reset Trip Point Voltage, X5001PT-2.7A
Reset Trip Point Voltage, X5001PT-2.7
Reset Trip Point Voltage, X5001PT-1.8
4.50
4.25
2.85
2.55
1.70
4.75
4.50
3.00
2.70
1.80
4.63
4.38
2.92
2.63
1.75
V
V
t
TRIP
Power-up Reset Timeout
100
200
280
500
ms
ns
ns
ns
V
PURST
(5)
V
V
V
Detect to Reset/Output
Fall Time
t
CC
CC
CC
RPD
(5)
t
0.1
0.1
1
F
(5)
Rise Time
t
R
V
Reset Valid V
CC
RVALID
Notes: (5) This parameter is periodically sampled and not 100% tested.
PT = Package, Temperature
Figure 2. CS vs. RESETTiming
CS
tCST
RESET
tWDO
tRST
tWDO
tRST
RESET OutputTiming
Symbol
Parameter
Min.
Typ.
Max.
Units
Watchdog Timeout Period,
WD = 1, WD = 0
1
0
100
450
1
200
600
1.4
300
800
2
ms
ms
sec
t
WDO
WD = 0, WD = 1
1
0
WD = 0, WD = 0
1
0
t
CS Pulse Width to Reset the Watchdog
Reset Timeout
400
100
ns
CST
t
200
300
ms
RST
12
XICOR [ XICOR INC. ]
