SMB218 View Datasheet(PDF) - Summit Microelectronics
Part Name
Description
Manufacturer
SMB218 Datasheet PDF : 37 Pages
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PLEASE NOTE: The SMB118 has entered End-of-Life.
SMB118/218
AC OPERATING CHARACTERISTICS (CONTINUED)
(Over commercial operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol
Parameter
Notes
Min Typ Max Unit
1.5
Programmable power-On Programmable power-On sequence
12.5
tPPTO
sequence timeout period. position to sequence position delay.
ms
25
50
1.5
tDPOFF
Programmable power-off Programmable power-off sequence
sequence timeout period. position to sequence position delay.
12.5
ms
25
50
25
tPRTO
Programmable reset
time-out delay
Programmable time following assertion of
last supply before nRESET pin is released
high.
50
100
ms
200
Time between active enable in which
OFF
tPST
Programmable sequence
termination period
corresponding outputs must exceed there
programmed under voltage threshold. If
exceeded, a force shutdown will be
50
100
ms
initiated.
200
0
PWR_EN de-bounce
tPDB
period
When PWR_EN is programmed as power
on pin.
25
ms
100
400
tPFTO
POWER_FAIL timeout
period
Timeout begins after latch is cleared.
3
ms
tBFTO
nBATT_FAULT timeout
period
Timeout begins after fault conditions
cleared.
3
ms
Period for which fault must persist before
tPGF
Programmable glitch filter fault triggered actions are taken. Present
3
µs
on all Buck, Boost, and inverting supplies.
Summit Microelectronics, Inc
2107 3.0 10/15/2008
15
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