參數(shù)資料
型號(hào)： LTC4274CUHF#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 28/28頁(yè)
文件大?。?/td> 702K
描述： IC CONTROLLER POE 38-QFN
標(biāo)準(zhǔn)包裝： 52
類型： 以太網(wǎng)供電 PSE 控制器（PoE）
應(yīng)用： 供電設(shè)備（PSE）
內(nèi)部開(kāi)關(guān)： 無(wú)
電流限制： 可調(diào)
電源電壓： 3 V ~ 4.3 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 38-QFN
供應(yīng)商設(shè)備封裝： 38-QFN（5x7）裸露焊盤(pán)
包裝： 管件
LTC4274
28
4274fd
 RELATED PARTS
?LINEAR TECHNOLOGY CORPORATION 2009
LT 0112 REV D " PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
?/DIV>
 FAX: (408) 434-0507
?
www.linear.com
 TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT1619
Low Voltage Current Mode PWM Controller
48V to 3.3V at 300mA, MSOP Package
LTC4265
IEEE 802.3at PD Interface Controller
100V, 1A Internal Switch, 2-Event Classification Recognition
LTC4266
IEEE 802.3at Quad PSE Controller
Supports IEEE 802.3at Type 1 and 2 PDs, 0.34?Channel Resistance, Advanced Power
Management, High-Reliability 4-Point PD Detection, Legacy Capacitance Detect
LTC4267
IEEE 802.3af PD Interface Console with
Integrated Switching Regulator
Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class
LTC4269-1
IEEE 802.3at PD Interface Console with
Integrated Switching Regulator
2-Event Classification, Programmable Classification, Synchronous No-Opto Flyback
Controller, 50kHz to 250kHz, Auxiliary Support
LTC4269-2
IEEE 802.3at PD Interface Console with
Integrated Switching Regulator
2-Event Classification, Programmable Classification, Synchronous Forward Controller,
100kHz to 500kHz, Auxiliary Support
LTC4278
IEEE 802.3at PD Interface with Integrated
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous No-Opto Flyback
Controller, 50kHz to 250kHz, 12V Auxiliary Support
LTC4270/
LTC4271
12-Port PoE/PoE
+
/LTPoE
++
" PSE Controller   Transformer Isolation, Supports Type 1, Type 2 and LTPoE
++
 PDs
One Complete Isolated Powered Ethernet Port
4274 TA02
1
2
3
4
5
6
7
8
2k
2k
1糉
100V
X7R
0.1糉
0.1糉
200?/DIV>
200?/DIV>
200?/DIV>
200?/DIV>
U2
U3
U1
HCPL-063L
HCPL-063L
V
DD
 CPU
SCL
SDA
GND CPU
SMBALERT
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
0.22糉
100V
X7R
V
EE
SENSE GATE  OUT
V
DD
SCL
SDAIN
SDAOUT
INT
R
SENSE
0.25?/DIV>
Q1
T1
LTC4274
DGND  AGND
ISOLATED
54V
SMAJ58A
S1B
ISOLATED
3.3V
ISOLATED
GND
0.01糉
200V
0.01糉
200V
0.01糉
200V
0.01糉
200V
75?/DIV>
75?/DIV>
75?/DIV>
75?/DIV>
RJ45
CONNECTOR
1000pF
2000V
FB1
FB2
S1B
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4274IUHF#PBF 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:IC POE IEEE 802.3AT 38-QFN 制造商:Linear Technology 功能描述:IC POE CNTRL 38QFN 制造商:Linear Technology 功能描述:IC, POE, CNTRL, 38QFN 制造商:Linear Technology 功能描述:IC, POE CONTROLLER, 3.6V, QFN-38; Input Voltage:3.6V; Supply Current:1.1mA; Digital IC Case Style:QFN; No. of Pins:38; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes
LTC4274IUHF#PBF 制造商:Linear Technology 功能描述:IC POE CONTROLLER 3.6V QFN-38
LTC4274IUHF#TRPBF 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP
LTC42766C 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad PoE/PoE/LTPoE PSE Controller
LTC4278 制造商:LINER 制造商全稱:Linear Technology 功能描述:IEEE 802.3at PD with Synchronous No-Opto Flyback Controller and 12V Aux Support
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