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LTC4271 датащи(PDF) 30 Page - Linear Technology

номер детали LTC4271
подробное описание детали  Single PoE/PoE/LTPoE PSE Controller
PDF  30 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC4271 датащи(HTML) 30 Page - Linear Technology

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LTC4274A/LTC4274C
30
4274acfc
© LINEAR TECHNOLOGY CORPORATION 2011
LT 0812 REV C • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC4270/LTC4271
12-Port PoE/PoE+/LTPoE++ PSE Controller
Transformer Isolation, Supports Type 1, Type 2 and LTPoE++ PDs
LTC4266
Quad IEEE 802.3at PoE PSE Controller
2-Event Classification, Programmable ICUT/ILIM
LTC4266A/LTC4266C
Quad IEEE 802.3at PoE PSE Controller
13W through 90W Support
LTC4274
Single IEEE 802.3at PoE PSE Controller
2-Event Classification, Programmable ICUT/ILIM
LTC4265
IEEE 802.3at PD Interface Controller
100V, 1A Internal Switch, 2-Event Classification Recognition
LTC4267
IEEE 802.3af PD Interface with Integrated Switching
Regulator
Internal 100V, 400mA Switch, Dual Inrush Current,
Programmable Class
LTC4269-1
IEEE 802.3at PD Interface with Integrated Flyback
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
No-Opto Flyback Controller, 50kHz to 250kHz, Auxiliary Support
LTC4269-2
IEEE 802.3at PD Interface with Integrated Forward
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
Forward Controller, 100kHz to 500kHz, Auxiliary Support
LTC4278
IEEE 802.3at PD Interface with Integrated Flyback
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
No-Opto Flyback Controller, 50kHz to 250kHz, 12V Auxiliary Support
One Complete Isolated Powered Ethernet Port
TYPICAL APPLICATION
4274AC TA02
1
2
3
4
5
6
7
8
2k
2k
1μF
100V
X7R
0.1μF
0.1μF
200Ω
200Ω
200Ω
200Ω
U2
U3
U1
HCPL-063L
HCPL-063L
VDD CPU
SCL
SDA
GND CPU
SMBALERT
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
0.22μF
100V
X7R
VEE
SENSE GATE OUT
VDD
SCL
SDAIN
SDAOUT
INT
RSENSE
0.25Ω
Q1
T1
LTC4274A/
LTC4274C
DGND AGND
ISOLATED
–54V
SMAJ58A
S1B
ISOLATED
3.3V
ISOLATED
GND
0.01μF
200V
0.01μF
200V
0.01μF
200V
0.01μF
200V
75Ω
75Ω
75Ω
75Ω
RJ45
CONNECTOR
1000pF
2000V
FB1
FB2
S1B



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