Linear Technology DC1815A-A LTC4266A-1: 4-Port 38.7W LTPoE++ Midspan PSE (req. DC2093 & DC590) DC1815A-A DC1815A-A 数据表
产品代码
DC1815A-A
LTC4266A/LTC4266C
30
4266acfc
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 0812 REV C • PRINTED IN USA
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 I
CUT
/I
LIM
LTC4274
Single IEEE 802.3at PoE PSE Controller
2-Event Classification, Programmable I
CUT
/I
LIM
LTC4274A/LTC4274C
Single IEEE 802.3at PoE PSE Controller
13W through 90W Support
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
Regulator
Internal 100V, 400mA Switch, Dual Inrush Current,
Programmable Class
Programmable Class
LTC4269-1
IEEE 802.3at PD Interface with Integrated Flyback
Switching Regulator
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
No-Opto Flyback Controller, 50kHz to 250kHz, Auxiliary Support
No-Opto Flyback Controller, 50kHz to 250kHz, Auxiliary Support
LTC4269-2
IEEE 802.3at PD Interface with Integrated Forward
Switching Regulator
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
Forward Controller, 100kHz to 500kHz, Auxiliary Support
Forward Controller, 100kHz to 500kHz, Auxiliary Support
LTC4278
IEEE 802.3at PD Interface with Integrated Flyback
Switching Regulator
Switching Regulator
2-Event Classification, Programmable Classification, Synchronous
No-Opto Flyback Controller, 50kHz to 250kHz, 12V Auxiliary Support
No-Opto Flyback Controller, 50kHz to 250kHz, 12V Auxiliary Support
Figure 17. One Complete Isolated Powered Ethernet Port
TYPICAL APPLICATION
4266AC F17
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
V
DD
CPU
SCL
SDA
GND CPU
INTERRUPT
TO
CONTROLLER
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
0.22μF
100V
X7R
V
EE
SENSE GATE OUT
V
DD
SCL
SDAIN
SDAOUT
INT
SDAIN
SDAOUT
INT
R
S
0.25Ω
Q1
T1
1/4
LTC4266
DGND AGND
–48V
ISOLATED
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
2000V
t
t
t
t
t
t
t
t
t
t
t
t
FB1
FB2
S1B