www.德州仪器.com
ELECTRICALCHARACTERISTICS
TPS61040
TPS61041
SLVS413B–OCTOBER2002–REVISEDMAY2004
vin=2.4v,en=vin,t
一个
=-40
°
Cto85
°
c,typicalvaluesareatt
一个
=25
°
c(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
SUPPLYCURRENT
vininputvoltagerange1.86v
I
Q
OperatingquiescentcurrentI
输出
=0ma,notswitching,v
FB
=1.3v2850µa
I
SD
shutdowncurrenten=gnd0.11µa
V
UVLO
下面-voltagelockoutthreshold1.51.7v
使能
V
IH
enhighlevelinputvoltage1.3v
V
IL
enlowlevelinputvoltage0.4v
I
I
eninputleakagecurrenten=gndorvin0.11µa
POWERSWITCHANDCURRENTLIMIT
VswMaximumswitchvoltage30V
t
止
Minimumofftime250400550ns
t
在
maximumontime467.5µs
R
ds(在)
mosfeton-resistancevin=2.4v;isw=200ma;tps610406001000m
Ω
R
ds(在)
mosfeton-resistancevin=2.4v;isw=200ma;tps610417501250m
Ω
MOSFETleakagecurrentV
sw
=28V110µA
I
LIM
MOSFETcurrentlimitTPS61040350400450mA
I
LIM
MOSFETcurrentlimitTPS61041215250285mA
输出
V
输出
AdjustableoutputvoltagerangeVin28V
V
ref
internalvoltagereference1.233v
I
FB
FeedbackinputbiascurrentV
FB
=1.3v1µa
V
FB
feedbacktrippointvoltage1.8v
≤
Vin
≤
6.0v1.2081.2331.258v
1.8v
≤
Vin
≤
6.0v;vout=18v;iload=10ma
Lineregulation
(1)
0.05%/v
Cff=notconnected
Loadregulation
(1)
vin=2.4v;vout=18v;0ma
≤
Iout
≤
30ma0.15%/毫安
(1)thelineandloadregulationdependontheexternalcomponentselection.refertotheapplicationsectionforfurtherinformation.
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