參數(shù)資料
型號： LTC4270BIUKG#TRPBF
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)： 26/32頁
文件大?。?/td> 344K
代理商： LTC4270BIUKG#TRPBF
LTC4270/LTC4271
32
42701fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2011
LT 0911 REV A PRINTED IN USA
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC4257-1
IEEE 802.3af PD Interface Controller
Internal 100V, 400mA Switch, Dual Current Limit, Programmable Class
LTC4263
Single IEEE 802.3af PSE Controller
Internal FET Switch
LTC4263-1
High Power Single PoE PSE Controller
With Internal FET Switch
LTC4265
IEEE 802.3at PD Interface Controller
Internal 100V, 1A Switch, 2-Event Classification Recognition
LTC4266
Quad IEEE 802.3at PoE PSE Controller
With Programmable ICUT/ILIM, 2-Event Classification, and Port Current and Voltage Monitoring
LTC4267
IEEE 802.3af PD Interface With Integrated
Switching Regulator
Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class
LTC4267-1
IEEE 802.3af PD Interface With Integrated
Switching Regulator
Internal 100V, 400mA Switch, Programmable Class, 200kHz Constant Frequency PWM
LTC4267-3
IEEE 802.3af PD Interface With Integrated
Switching Regulator
Internal 100V, 400mA Switch, Programmable Class, 300kHz Constant Frequency PWM
LTC4269-1
IEEE 802.3af PD Interface With Integrated
Flyback Switching Regulator
2-Event Classification, Programmable Class, Synchronous No-Opto Flyback Controller,
50kHz to 250kHz, Aux Support
LTC4269-2
IEEE 802.3af PD Interface With Integrated
Forward Switching Regulator
2-Event Classification, Programmable Class, Synchronous Forward Controller, 100kHz to
500kHz, Aux Support
LTC4272
Single-chip 12-port IEEE 802.3at PoE PSE
Controller
With Programmable ICUT/ILIM, 2-Event Class, and Port Current and Voltage Monitoring
LTC4278
IEEE 802.3af PD Interface With Integrated
Flyback Switching Regulator
2-Event Classification, Programmable Class, Synchronous No-Opto Flyback Controller,
50kHz to 250kHz, 12V Aux Support
LTC4274
Single IEEE 802.3at PoE PSE Controller
With Programmable ICUT/ILIM, 2-Event Classification, and Port Current and Voltage Monitoring
LTC4311
SMBus/ I2C Accelerator
Improved I2C Rise Time, Ensures Data Integrity
TYPICAL APPLICATION
0.01μF
200V
0.01μF
200V
1
2
3
4
5
6
7
8
RJ45
CONNECTOR
3.3V
–54V
100Ω
T2
T3
3.3V
–54V
ISOLATED
GND
–54V
100Ω
GP0
GP1
MID
RESET
MSD
INT
AUTO
SCL
AD0
AD1
AD2
AD3
AD6
DGND
VEE VSSK
CAP1
CAP2
DND
DPD
CND
CPD
DNA
AGND
DPA
CNA
CPA
OUT12
OUT1
GATE1
SENSE1
GATE12
SENSE12
XIO0
XIO1
42701 F16
SDAIN
SDAOUT
LTC4271
LTC4270
VDD33
1μF
3.3V
0.1μF
1μF
2nF 2000V
SMAJ58A
1μF
100V
X7R
+
>47μF
SYSTEM
BULK CAP
S1B
1
11
12
2
T1
0.25Ω, 1%
RS
0.22μF
100V
X7R
S1B
FDMC3612
0.01μF
200V
0.01μF
200V
0.01μF
200V
0.01μF
200V
75Ω
1
2
3
4
5
6
7
8
RJ45
CONNECTOR
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
相關(guān)PDF資料
PDF描述
LTC4270BIUKG#PBF SPECIALTY ANALOG CIRCUIT, PQCC52
LTC4270AIUKG#TRPBF SPECIALTY ANALOG CIRCUIT, PQCC52
LTC4270AIUKG#PBF SPECIALTY ANALOG CIRCUIT, PQCC52
LTC4274CIUHF#PBF POWER SUPPLY MANAGEMENT CKT, PQCC38
LTC4274AIUHF-4#TRPBF POWER SUPPLY MANAGEMENT CKT, PQCC38
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
LTC4270CIUKG#TRPBF 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: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
LTC4271 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single PoE/PoE/LTPoE PSE Controller
LTC4271IUF#PBF 制造商:Linear Technology 功能描述:POE Controller 90W 24-Pin QFN EP 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:IC POE 12-/8-PORT PSE 24-QFN 制造商:Linear Technology 功能描述:IC PSE CONTROLLER 3.3V QFN-24 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-24 制造商:Linear Technology 功能描述:IC, PSE CONTROLLER, 3.3V, QFN-24; Input Voltage:3.3V; Supply Current:10mA; UVLO:25V; Digital IC Case Style:QFN; No. of Pins:24; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:24-QFN ;RoHS Compliant: Yes
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