參數(shù)資料
型號: LTC4266CUHF#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, PQCC38
封裝: 5 X 7 MM, LEAD FREE, PLASTIC, MO-220WHKD, QFN-38
文件頁數(shù): 25/30頁
文件大?。?/td> 414K
代理商: LTC4266CUHF#PBF
LTC4266
4266fa
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CurrentSense
VCUT
OvercurrentSenseVoltage
VSENSEn–VEE,icut12=icut34=hpen=00h
hpen=0Fh,cutn[5:0]≥4(Note12)
cutrng=0
cutrng=1
l
l
180
9
4.5
188
9.38
4.69
196
9.75
4.88
mV
mV/LSB
OvercurrentSenseinAutoMode
Class0,Class3
Class1
Class2
Class4
l
90
26
49
152
94
28
52
159
98
30
55
166
mV
VLIM
ActiveCurrentLimitin802.3afCompliant
Mode
VSENSEn–VEE,icut12=icut34=hpen=00h
VEE=55V(Note12)
VEE<VOUT<AGND–29V
AGND–VOUT=0V
l
204
40
212
220
100
mV
VLIM
ActiveCurrentLimitinHighPowerMode
hpen=0Fh,limn=C0h,VEE=55V
VOUT–VEE=0Vto10V
VEE+23V<VOUT<AGND–29V
AGND–VOUT=0V
l
204
100
20
212
106
221
113
50
mV
VLIM
ActiveCurrentLimitinAutoMode
VOUT–VEE=0Vto10V,VEE=55V
Class0toClass3
Class4
l
102
204
106
212
110
221
mV
VMIN
DCDisconnectSenseVoltage
VSENSEn–VEE,rdis=0
VSENSEn–VEE,rdis=1
l
2.6
1.3
3.8
1.9
4.8
2.41
mV
VSC
Short-CircuitSense
VSENSEn–VEE–VLIM,rdis=0
VSENSEn–VEE–VLIM,rdis=1
l
160
75
200
100
255
135
mV
PortCurrentReadBack
Resolution
Nomissingcodes,fast_iv=0
14
bits
LSBWeight
VSENSEn–VEE
30.5
V/LSB
50-60HzNoiseRejection
(Note7)
30
dB
PortVoltageReadBack
Resolution
Nomissingcodes,fast_iv=0
14
bits
LSBWeight
AGND–VOUTn
5.835
mV/LSB
50-60Hznoiserejection
(Note7)
30
dB
DigitalInterface
VILD
DigitalInputLowVoltage
(Note6)
l
0.8
V
VIHD
DigitalInputHighVoltage
(Note6)
l
2.2
V
DigitalOutputLowVoltage
ISDAOUT=3mA,IINT=3mA
ISDAOUT=5mA,IINT=5mA
l
0.4
0.7
V
InternalPull-UptoVDD
ADn,SHDNn,RESET,MSD
50
InternalPull-DowntoDGND
AUTO,MID
50
electricAl chArActeristics
Theldenotesthespecificationswhichapplyoverthefulloperating
temperaturerange,otherwisespecificationsareatTA=25°C.AGND–VEE=54V,AGND=DGND,andVDD–DGND=3.3Vunlessotherwise
noted.(Notes3,4)
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