X5043, X5045
Power-Up and Power-Down Timing
VTRIP
VTRIP
VCC
tPURST
0 Volts
tPURST
tF
tRPD
tR
RESET (X5043)
RESET (X5045)
RESET Output Timing
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
VTRIP
Reset Trip Point Voltage, (-4.5A)
4.5
4.62
4.38
2.92
2.62
4.75
4.5
V
Reset Trip Point Voltage, (Blank)
4.25
2.85
2.55
Reset Trip Point Voltage, (-2.7A)
Reset Trip Point Voltage, (-2.7)
3.0
2.7
tPURST
Power-up Reset Time Out
VCC Detect to Reset/Output
VCC Fall Time
100
200
400
500
ms
ns
µs
ns
V
(6)
tRPD
(6)
tF
10
0.1
1
(6)
tR
VCC Rise Time
VRVALID
Reset Valid VCC
NOTE:
6. This parameter is periodically sampled and not 100% tested.
CS/WDI vs. RESET/RESET Timing
CS/WDI
tCST
RESET
(5043)
tWDO
tRST
tWDO
tRST
RESET
(5045)
RESET/RESET Output Timing
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
tWDO
Watchdog Time Out Period,
WD1 = 1, WD0 = 1 (default)
WD1 = 1, WD0 = 0
OFF
200
600
1.4
100
450
1
300
800
2
ms
ms
sec
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
tCST
tRST
CS Pulse Width to Reset the Watchdog
Reset Time Out
400
100
ns
200
400
ms
FN8126.1
September 16, 2005
16
INTERSIL [ Intersil ]
