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RECOMMENDEDOPERATINGCONDITIONS
ELECTRICALCHARACTERISTICS
TPS2231
TPS2236
SLVS536B–JULY2004–REVISEDJANUARY2005
dissipationratings(thermalresistance=
°
c/w)(持续)
T
一个
≤
25
°
CDERATINGFACTORT
一个
=70
°
CT
一个
=85
°
C
包装
POWERRATINGABOVET
一个
=25
°
CPOWERRATINGPOWERRATING
dap(32)
(1)
993.4mw10.46mw/
°
c522.8mw366mw
PowerPADnotsoldereddown
dap(32)
(1)
4040.8mw42.55mw/
°
c2126.8mw1488.7mw
MINMAXUNIT
V
i(3.3vin)
3.3vinisonlyrequiredforitsrespectivefunctions33.6
V
i(1.5vin)
inputvoltage1.5vinisonlyrequiredforitsrespectivefunctions1.351.65v
V
i(auxin)
auxinisrequiredforallcircuitoperations33.6
I
o(3.3vout)
01.3a
I
o(1.5vout)
ContinuousoutputcurrentT
J
=120
°
C0650mA
I
o(auxout)
0275mA
T
J
Operatingvirtualjunctiontemperature–40120
°
C
T
J
=25
°
c,v
i(3.3vin)
=V
i(auxin)
=3.3v,v
i(1.5vin)
=1.5v,v
i(/shdnx)
,v
i(/stbyx)
=3.3v,v
i(/cppex)
=V
i(/cpusbx)
=0v,
V
i(/sysrst)
=3.3v,ocxandrclkenxandperstxareopen,allvoltageoutputsunloaded(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
POWERSWITCH
T
J
=25
°
c,i=1300maeach45
3.3vinto3.3voutwithtwo
m
Ω
switchesonfordual
T
J
=100
°
c,i=1300maeach68
T
J
=25
°
c,i=650maeach46
powerswitch1.5vinto1.5voutwithtwo
m
Ω
resistanceswitchesonfordual
T
J
=100
°
c,i=650maeach70
T
J
=25
°
c,i=275maeach120
AUXINtoAUXOUTwithtwo
m
Ω
switchesonfordual
T
J
=100
°
c,i=275maeach200
R
(dis_场效应晶体管)
dischargeresistanceon3.3v/1.5v/auxoutputsv
i(/shdnx)
=0v,i
(释放)
=1mA100500
Ω
I
os(3.3vout)
(稳步的-statevalue)1.3522.5a
短的-circuitout-t
J
(–40,120
°
c].outputpoweredinto
I
OS
I
os(1.5vout)
(稳步的-statevalue)0.6711.3a
putcurrent
(1)
ashort
I
os(auxout)
(稳步的-statevalue)275450600ma
risingtemperature,notin
155165
overcurrentcondition
trippoint,t
J
°
C
热的
shutdownOvercurrentcondition120130
Hysteresis10
V
o(3.3vout)
with100-m
Ω
short43100
V
o(1.5vout)
with100-m
Ω
短的,
100140
Fromshorttothe1
st
门槛
TPS2231
电流-限制
within1.1timesoffinalcurrentµs
responsetime
V
o(1.5vout)
with100-m
Ω
短的,
限制,t
J
=25
°
C
110150
TPS2236
V
o(auxout)
with100-m
Ω
short38100
I
i(auxin)
125200
Normaloperation
I
i(3.3vin)
17.525µa
ofTPS2236
outputsareunloaded,
I
i(1.5vin)
5.515
OperationinputT
J
[–40,120
°
c](doesnotinclude
I
I
quiescentcurrentCPPExandCPUSBxlogicpullup
I
i(auxin)
85150
电流)
Normaloperation
I
i(3.3vin)
1015µA
ofTPS2231
I
i(1.5vin)
2.510
(1)脉冲波-testingtechniquesmaintainjunctiontemperatureclosetoambienttemperature;thermaleffectsmustbetakenintoaccount
separately.
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