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TPS2376PWRG4

更新时间： 2024-11-16 00:50:51
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德州仪器 - TI /
页数 文件大小 规格书
25页 895K
描述
IEEE 802.3af PoE POWERED DEVICE CONTROLLERS

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TPS2376PWRG4 数据手册

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data sheet  
TPS2375  
TPS2376  
TPS2377  
D−8  
PW−8  
www.ti.com............................................................................................................................................................ SLVS525B–APRIL 2004–REVISED APRIL 2008  
IEEE 802.3af PoE POWERED DEVICE CONTROLLERS  
1
FEATURES  
APPLICATIONS  
•
•
•
•
•
VoIP Phones  
•
•
•
•
•
•
•
•
•
•
•
Fully Supports IEEE 802.3af Specification  
Integrated 0.58-Ω, 100-V, Low-Side Switch  
15-kV System Level ESD Capable  
Supports Use of Low-Cost Silicon Rectifiers  
Programmable Inrush Current Control  
Fixed 450-mA Current Limit  
WLAN Access Points  
Security Cameras  
Internet Appliances  
POS Terminals  
TPS2376  
TPS2375/77  
(TOP VIEW)  
(TOP VIEW)  
Fixed and Adjustable UVLO Options  
Open-Drain, Power-Good Reporting  
Overtemperature Protection  
1
2
8
7
6
5
1
2
8
7
6
5
VDD  
VDD  
N/C  
ILIM  
ILIM  
CLASS  
DET  
CLASS  
DET  
UVLO  
3
4
3
4
PG  
PG  
RTN  
RTN  
VSS  
VSS  
Industrial Temperature Range: -40°C to 85°C  
8-Pin SOIC and TSSOP Packages  
DESCRIPTION  
These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af  
compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring  
100-V ratings and a true open-drain, power-good function.  
In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers  
include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has  
legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.  
The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af  
specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.  
Additional resources can be found on the TI Web site www.ti.com.  
RJ−45  
1
TX  
Pair  
Detect  
Classify  
Power Up & Inrush  
Data to  
Ethernet  
PHY  
2
Class 3  
Current  
Input  
Current  
DF01S  
2 Places  
R
100  
kW  
(DET)  
24.9 kW,  
V
(PG-RTN)  
1 %  
PG  
DET  
ILIM  
R
(ILIM)  
4
5
0.1mF,  
100 V  
10 %  
178 kW,  
1 %  
V
100 mF,  
100 V  
DD  
Spare  
Pair  
CLASS  
V
RTN  
7
8
RTN  
R
(ICLASS)  
357 W,  
1 %  
Spare  
Pair  
3
Note: Class 3 PD Depicted.  
PG Pullup Resistor Is Optional.  
Note: All Voltages With Respect to VSS.  
RX  
Pair  
Data to  
Ethernet PHY  
6
Figure 1. Typical Application Circuit and Startup Waveforms  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2008, Texas Instruments Incorporated  
 
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TPS2376PWRG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS2376PWG4 TI

完全替代

 IEEE 802.3af PoE POWERED DEVICE CONTROLLERS
TPS2376D TI

完全替代

 IEEE 802.3af PoE POWERED DEVICE CONTROLLERS
TPS2376PW TI

完全替代

 IEEE 802.3af PoE POWERED DEVICE CONTROLLERS

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TPS23770PWPRG4 TI

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TPS2377-1 TI

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 		IEEE 802.3af PoE POWERED DEVICE CONTROLLERS WITH AUTO-RETRY
TPS2377D TI

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 		IEEE 802.3af PoE POWERED DEVICE CONTROLLERS
TPS2377D-1 TI

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 		IEEE 802.3af PoE POWERED DEVICE CONTROLLERS WITH AUTO-RETRY
TPS2377D-1G4 TI

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 		IEEE 802.3af PoE POWERED DEVICE CONTROLLERS WITH AUTO-RETRY

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