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參數(shù)資料
| 型號： | LTC4270AIUKG#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC52 |
| 封裝： | 8 X 7 MM, LEAD FREE, PLASTIC, QFN-52 |
| 文件頁數(shù)： | 32/32頁 |
| 文件大?。?/td> | 344K |
| 代理商： | LTC4270AIUKG#PBF |
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LTC4270/LTC4271
9
42701fa
802.3at ILIM Threshold
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
DC Disconnect Threshold
vs Temperature
802.3at Current Limit Foldback
INT and SDAOUT Pull Down
Voltage vs Load Current
MOSFET Gate Drive With Fast
Pull Down
802.3at ICUT Threshold
vs Temperature
TEMPERATURE (°C)
–40
204
V
LIM
(mV)
ILIM
(mA)
216
212
208
220
816
864
848
832
880
40
60
80
100 120
–20
0
42701 G09
20
PORT 1
REG 48h = C0h
RSENSE = 0.25Ω
TEMPERATURE (°C)
–40
152
V
CUT
(mV)
ICUT
(mA)
162
164
160
158
156
154
166
608
648
640
632
624
616
664
656
40
60
80
100 120
–20
0
42701 G10
20
PORT 1
REG 47h = E2h
RSENSE = 0.25Ω
TEMPERATURE (°C)
–40
1.25
V
MIN
(mV)
IMIN
(mA)
2.00
2.25
1.75
1.50
2.50
5
8
7
6
10
9
40
60
80
100 120
–20
0
42701 G11
20
PORT 1
REG 47h = E2h
RSENSE = 0.25Ω
VOUTn (V)
–54
0
I LIM
(mA)
V
LIM
(mV)
600
500
800
700
400
300
200
100
900
0
125
100
75
50
25
225
200
175
150
–36
–27
–18
–9
0
–45
42701 G12
PORT 1
REG 48h = C0h
RSENSE = 0.25Ω
100μs/DIV
GND
0mA
42701 G14
VEE
PORT
CURRENT
500mA/DIV
GATE
VOLTAGE
10V/DIV
PORT
VOLTAGE
20V/DIV
CURRENT LIMIT
50Ω FAULT REMOVED
50Ω
FAULT
APPLIED
VDD = 3.3V
VEE = –54V
FAST PULL DOWN
LOAD CURRENT (mA)
42701 G13
020
10
30
40
50
60
3.0
2.5
2.0
1.5
1.0
0.5
0.0
PULLDOWN
VOL
TAGE
(V)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4270BIUKG#PBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 52-Pin QFN EP 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:IC POE LTPOE 12-PORT PSE 52-QFN 制造商:Linear Technology 功能描述:IC PSE CONTROLLER 3.3V QFN-52 制造商:Linear Technology 功能描述:PSE CNTRL 12 PORT 25.5W 1M 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-52; Input Voltage:3.3V; Supply Current:10mA; UVLO:25V; Digital IC Case Style:QFN; No. of Pins:52; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:52-QFN ;RoHS Compliant: Yes |
| LTC4270BIUKG#PBF | 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-52 |
| LTC4270BIUKG#TRPBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 52-Pin QFN EP 制造商:Linear Technology 功能描述:PSE CONTROLLER, 12PORT, 57V, QFN-52; Supply Current:10mA; UVLO:25V; Digital IC Case Style:QFN; No. of Pins:52; Duty Cycle (%):6.3%; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C ;RoHS Compliant: Yes |
| LTC4270CIUKG#PBF | 制造商:Linear Technology 功能描述:POE Controller 13W 52-Pin QFN EP 制造商:Linear Technology 功能描述:IC POE LTPOE 12-PORT PSE 52-QFN 制造商:Linear Technology 功能描述:PSE CNTRL 12 PORT 13W 1MHZ 制造商:Linear Technology 功能描述:IC PSE CONTROLLER 3.3V QFN-52 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-52; Input Voltage:3.3V; Supply Current:10mA; UVLO:25V; Digital IC Case Style:QFN; No. of Pins:52; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:52-QFN ;RoHS Compliant: Yes |
| LTC4270CIUKG#PBF | 制造商:Linear Technology 功能描述:IC PSE CONTROLLER 3.3V QFN-52 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-52 |
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