Datasheet

CurrentLimit
Threshold
I
LIMIT_INRUSH
CurrentLimitassetbyCL
(30mA,70mA,155mA)
Temporarilyincreasecurrentlimitthresholdto
allowforLDOInrushcurrent
AllottedtimeforLDOInrushCurrentto
exceednormalcurrentlimitthreshold
8ms
t
CLSET
ChangesonCL pin,willnotaffectcurrent
limitthresholdafterthistime
CL pin
Detection
Timing
V
OUT
LDOOutputstable
HardShort
Detection
OFF
0.125mS
t
HARDSHORT
OFFOFF
OFFOFF OFFOFFON
OFF
ON
ONONONON
ON
ON
Over Temperature
Detection
ModerateOver
CurrentDetection
8ms
8ms
t
MODOC
t
MODOC
0.5mS
0.5mS
0.5mS
t
OVRTMP
t
PWRON
t
PWRON
InrushCurrentwindow
InrushCurrentwindow
V /2
IN
V istieddirectlytoV
ON IN
V
IN
V
ON
0V
0V
SWITCH
OPEN
SWITCH
CLOSE
LoadSwitch
Status
TPS22946
www.ti.com SLVS984A –SEPTEMBER 2009–REVISED FEBRUARY 2010
Figure 29. Power-On/Power-Off Sequence Timing
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