參數(shù)資料
型號： LTC4257IS8#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 網(wǎng)絡(luò)接口
英文描述： IEEE 802.3af PD Power over Ethernet Interface Controller; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C
中文描述： DATACOM, NETWORK INTERFACE SUPPORT CIRCUIT, PDSO8
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù)： 6/20頁
文件大小： 258K
代理商： LTC4257IS8#PBF
LTC4257
14
4257fb
APPLICATIO S I FOR ATIO
WU
UU
Figure 9. Auxiliary Power Source for PD
RX –
6
RX +
3
TX –
2
TX +
RJ45
T1
1
7
8
5
4
SPARE –
+
–
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
GND
8
45
OPTION 1: AUXILIARY POWER INSERTED BEFORE LTC4257
OPTION 2: AUXILIARY POWER INSERTED AFTER LTC4257
VIN
VOUT
44V TO 57V
D8
S1B
D3
SMAJ58A
TVS
C1
PD
LOAD
C14
0.1
F
100V
RX –
6
RX +
3
TX –
2
TX +
RJ45
T1
1
7
8
5
4
SPARE –
+
–
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
GND
LTC4257
BR2
DF01SA
~
+
–
BR1
DF01SA
~
+
–
BR1
DF01SA
~
+
–
8
45
VIN
VOUT
42571 F09
D10
S1B
D3
SMAJ58A
TVS
C1
MINIMUM
LOAD
PD
LOAD
D9
S1B
OPTION 3: AUXILIARY POWER APPLIED TO LTC4257 AND PD LOAD
RX –
6
RX +
3
TX –
2
TX +
RJ45
T1
1
7
8
5
4
SPARE –
+
–
SPARE+
ISOLATED
WALL
TRANSFORMER
TO PHY
44V TO 57V
GND
LTC4257
8
45
VIN
VOUT
D10
S1B
D3
SMAJ58A
TVS
C1
PD
LOAD
C14
0.1
F
100V
C14
0.1
F
100V
BR2
DF01SA
~
+
–
BR1
DF01SA
~
+
–
BR2
DF01SA
~
+
–
相關(guān)PDF資料
PDF描述
LTC4257IS8#TRPBF IEEE 802.3af PD Power over Ethernet Interface Controller; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C
LTC4259ACGW-1#PBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: 0°C to +70°C
LTC4259ACGW-1#TRPBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: 0°C to +70°C
LTC4259AIGW-1#PBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: -40°C to +85°C
LTC4259AIGW-1#TRPBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: -40°C to +85°C
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4258 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad IEEE 802.3at Power over Ethernet Controller
LTC4258_09 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad IEEE 802.3af Power over Ethernet Controller with Integrated Detection
LTC4258CGW 制造商:Linear Technology 功能描述:POWER OVER ETHERNET CONTROLLER
LTC4258CGW#PBF 功能描述:IC POE 802.3AF QUAD 36-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4258CGW#TR 制造商:Linear Technology 功能描述:POWER OVER ETHERNET CONTROLLER
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