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LTC4270

更新时间： 2023-12-20 18:44:10
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
32页 1522K
描述
12 端口 PoE / PoE+ / LTPoE++ PSE 控制器

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中文翻译

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LTC4270 数据手册

 浏览型号LTC4270的Datasheet PDF文件第26页浏览型号LTC4270的Datasheet PDF文件第27页浏览型号LTC4270的Datasheet PDF文件第28页浏览型号LTC4270的Datasheet PDF文件第29页浏览型号LTC4270的Datasheet PDF文件第30页浏览型号LTC4270的Datasheet PDF文件第31页 
LTC4270/LTC4271  
TYPICAL APPLICATION  
3.3V 0.1µF  
1µF  
12  
11  
GP0  
V
DD33  
XIO0  
CPA  
XIO1  
2
GP1  
CPD  
MID  
1
OUT12  
GATE12  
SENSE12  
100Ω  
3.3V  
RESET  
MSD  
AUTO  
INT  
•
•
•
–54V  
–54V  
0.22µF  
100V  
X7R  
100Ω  
LTC4271  
LTC4270  
S1B  
SCL  
T2  
CND  
DPD  
CNA  
DPA  
SDAIN  
OUT1  
GATE1  
SENSE1  
SDAOUT  
AD0  
AD1  
AD2  
AD3  
AD6  
100Ω  
3.3V  
•
RS  
RJ45  
ECTOR  
100Ω  
0.25Ω, 1% FDMC3612  
T3  
1
DND  
DNA  
RJ45  
CONNECTOR  
1µF  
2
3
4
5
6
7
8
S1B  
T1  
10Ω  
1
AGND  
2
3
4
5
6
7
•
•
•
V
VSSK  
EE  
0.01µF  
200V  
0.01µF  
200V  
DGND CAP1  
CAP2  
SMCJ58A  
SMAJ58A  
1µF  
100V  
X7R  
75Ω 75Ω  
1µF  
0.1µF  
2nF 2kV  
PHY  
•
(NETWORK  
PHYSICAL  
LAYER  
–54V  
ISOLATED  
8
•
•
•
•
0.01µF  
200V  
0.01µF  
200V  
CHIP)  
75Ω 75Ω  
ISOLATED  
GND  
>47µF  
SYSTEM  
+
BULK CAP  
–54V  
42701 F16  
RELATED PARTS  
PART NUMBER DESCRIPTION  
COMMENTS  
LTC4257-1  
LTC4263  
LTC4265  
LTC4266  
LTC4266A  
IEEE 802.3af PD Interface Controller  
Single IEEE 802.3af PSE Controller  
IEEE 802.3at PD Interface Controller  
Quad IEEE 802.3at PoE PSE Controller  
Internal 100V, 400mA Switch, Dual Current Limit, Programmable Class  
Internal FET Switch  
Internal 100V, 1A Switch, 2-Event Classification Recognition  
With Programmable I /I , 2-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
++  
Quad LTPoE PSE Controller  
Provides Up to 90W. Backwards Compatible with IEEE 802.3af and IEEE 802.3at PDs. With  
Programmable I /I , 2-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
LTC4266C  
LTC4267  
Quad IEEE 802.3af PSE Controller  
With Programmable I /I , 1-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
IEEE 802.3af PD Interface With Integrated  
Switching Regulator  
Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class  
LTC4267-1  
LTC4267-3  
LTC4269-1  
LTC4269-2  
LTC4278  
IEEE 802.3af PD Interface With Integrated  
Switching Regulator  
Internal 100V, 400mA Switch, Programmable Class, 200kHz Constant Frequency PWM  
Internal 100V, 400mA Switch, Programmable Class, 300kHz Constant Frequency PWM  
IEEE 802.3af PD Interface With Integrated  
Switching Regulator  
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  
IEEE 802.3af PD Interface With Integrated  
Forward Switching Regulator  
2-Event Classification, Programmable Class, Synchronous Forward Controller, 100kHz to  
500kHz, Aux Support  
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 I /I , 2-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
++  
LTC4274A  
Single LTPoE PSE Controller  
Provides Up to 90W. Backwards Compatible with IEEE 802.3af and IEEE 802.3at PDs. With  
Programmable I /I , 2-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
LTC4274C  
LTC4311  
Single IEEE 802.3af PSE Controller  
With Programmable I /I , 1-Event Classification, and Port Current and Voltage Monitoring  
CUT LIM  
2
2
SMBus/ I C Accelerator  
Improved I C Rise Time, Ensures Data Integrity  
Rev E  
1/23  
www.analog.com  
ANALOG DEVICES, INC. 2011-2023  
32  
1...29303132

中文翻译

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