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CATHODE
ANODE
_
+
AbsoluteMaximumRatings
(1)
RecommendedOperatingConditions
LM4040
PRECISIONMICROPOWERSHUNTVOLTAGEREFERENCE
SLOS456H–JANUARY2005–REVISEDNOVEMBER2005
FUNCTIONALBLOCKDIAGRAM
overfree-airtemperaturerange(unlessotherwisenoted)
MINMAXUNIT
I
Z
Continuouscathodecurrent–1025mA
DBZpackage206
θ
JA
Packagethermalimpedance
(2)(3)
DCKpackage252
°
c/w
LPpackage156
T
J
Operatingvirtualjunctiontemperature150
°
C
T
stg
Storagetemperaturerange–65150
°
C
(1)stressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.thesearestressratings
仅有的,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperating
情况"isnotimplied.exposuretoabsolute-最大-ratedconditionsforextendedperiodsmayaffectdevicereliability.
(2)maximumpowerdissipationisafunctionoft
J
(最大值),
θ
JA
,andt
一个
.themaximumallowablepowerdissipationatanyallowableambient
temperatureisP
D
=(t
J
(最大值)–t
一个
)/
θ
JA
.operatingattheabsolutemaximumt
J
of150
°
ccanaffectreliability.
(3)thepackagethermalimpedanceiscalculatedinaccordancewithjesd51-7.
MINMAXUNIT
I
Z
Cathodecurrent
(1)
12mA
LM4040xxxI–4085
T
一个
自由-airtemperature
°
C
LM4040xxxQ–40125
(1)seeparametrictables
7
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