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TPS2370PW

更新时间： 2024-11-13 22:52:59
品牌 Logo 应用领域
德州仪器 - TI 电源电路开关电源管理电路光电二极管以太网以太网：16GBASE-T
页数 文件大小 规格书
13页 210K
描述
IEEE 802.3af POWER INTERFACE SWITCH FOR POWER OVER ETHERNET(PoE) POWERED DEVICES

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中文翻译

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TPS2370PW 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Not Recommended零件包装代码：SOIC
包装说明：TSSOP-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.14Is Samacsys：N
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e4
长度：4.4 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：48 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.4 mA
最大供电电压 (Vsup)：57 V最小供电电压 (Vsup)：44 V
标称供电电压 (Vsup)：48 V表面贴装：YES
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL阈值电压标称：+14, 23.5
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

TPS2370PW 数据手册

 浏览型号TPS2370PW的Datasheet PDF文件第2页浏览型号TPS2370PW的Datasheet PDF文件第3页浏览型号TPS2370PW的Datasheet PDF文件第4页浏览型号TPS2370PW的Datasheet PDF文件第5页浏览型号TPS2370PW的Datasheet PDF文件第6页浏览型号TPS2370PW的Datasheet PDF文件第7页 
ꢀꢁ ꢂ ꢃꢄ ꢅꢆ  
www.ti.com  
SLUS537C − AUGUST 2002 − REVISED MARCH 2004  
ꢇꢈꢈ ꢈ ꢉ ꢆꢃ ꢊꢄ ꢋ ꢌ ꢁꢍ ꢎꢈ ꢏ ꢇ ꢐꢀꢈ ꢏꢑꢒꢓ ꢈ ꢂ ꢎꢇꢀ ꢓꢔ ꢑꢍ ꢏ  
ꢁꢍꢎ ꢈꢏ ꢍꢕ ꢈꢏ ꢈꢀ ꢔꢈ ꢏꢐ ꢈꢀ ꢖ ꢁꢗ ꢈꢘ ꢁ ꢍꢎꢈ ꢏꢈ ꢙ ꢙ ꢈꢕꢇ ꢓ ꢈꢂ  
FEATURES  
DESCRIPTION  
D
Integrated Power Interface Switch for IEEE  
802.3af Powered Devices (PDs)  
Acting as an interface between the power sourcing  
equipment (PSE) and the powered device (PD), the  
TPS2370 performs all detection, classification, inrush  
current limiting, and switch FET control that is  
necessary for compliance with the IEEE 802.3af  
Standard. An internal 0.3-Ω FET provides maximum  
power delivery. As an additional feature, the TPS2370  
interfaces with the enable/soft-start signal of a dc-to-dc  
converter, eliminating the need to have an accurate  
UVLO in the dc-to-dc converter.  
D
Provides PD Detection Signature  
D
Provides PD Classification Signature  
(Class 0−4)  
D
D
D
Programmable Inrush Current Limit  
Internal 0.3-Ω Low-Side FET  
Interfaces to DC/DC Soft-Start for DC/DC  
Enable  
At low input voltages (1.8 V to 10 V), the TPS2370  
draws less than 12 µA, allowing accurate sensing of the  
external 24.9-kΩ discovery resistor. At input voltages  
between 15 V and 20 V, an external resistor sets the  
level of current to be drawn during classification mode.  
TPS2370 is compatible with current as well as voltage  
measurement schemes for classification. Above 20-V  
input, the classification current is shut off, reducing  
internal power dissipation.  
D
Internal Thermal Protection – Disconnects PD  
Load  
D
Minimal External Parts Count  
D
8-Pin SOIC, 8-Pin TSSOP Packages  
APPLICATIONS  
D
D
D
D
VoIP Phones  
Internet Appliances  
The TPS2370 drives an internal low-side FET for  
control of the return side of the power path. The internal  
FET is turned on when the input voltage reaches 40 V  
and above. When the input voltage decreases, the FET  
remains on until the input voltage drops to below 30 V.  
Wireless LAN Access Points  
BluetoothAccess Points  
TYPICAL APPLICATION  
V+  
24.9 kꢀ  
8
3
C
DCDCIN  
0.1 ꢁf  
TPS2370  
44 V  
TO  
R
LIM  
DC/DC  
Converter/  
Controller  
1
2
4
VREG  
Ethernet  
Appliance  
57 V  
6
5
SMAJ54A  
R
CLASS  
C
SS  
UDG−03057  
V−  
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.  
PowerPADis a trademark of Texas Instruments. Bluetoothis a trademark of Bluetooth SIC, Inc.  
ꢁꢏ ꢍ ꢙꢚ ꢓ ꢀꢇ ꢍꢐ ꢙ ꢒꢀꢒ ꢛꢜ ꢌꢗ ꢝ ꢞꢋ ꢟꢛꢗꢜ ꢛꢠ ꢡꢢ ꢝ ꢝ ꢣꢜꢟ ꢋꢠ ꢗꢌ ꢤꢢꢥ ꢦꢛꢡ ꢋꢟꢛ ꢗꢜ ꢧꢋ ꢟꢣꢊ ꢁꢝ ꢗꢧꢢ ꢡꢟꢠ  
ꢡ ꢗꢜ ꢌꢗꢝ ꢞ ꢟꢗ ꢠ ꢤꢣ ꢡ ꢛ ꢌꢛ ꢡ ꢋ ꢟꢛ ꢗꢜꢠ ꢤ ꢣꢝ ꢟꢨꢣ ꢟꢣ ꢝ ꢞꢠ ꢗꢌ ꢀꢣꢩ ꢋꢠ ꢇꢜꢠ ꢟꢝ ꢢꢞ ꢣꢜꢟ ꢠ ꢠꢟ ꢋꢜꢧ ꢋꢝ ꢧ ꢪ ꢋꢝ ꢝ ꢋ ꢜꢟꢫꢊ  
ꢁꢝ ꢗ ꢧꢢꢡ ꢟ ꢛꢗ ꢜ ꢤꢝ ꢗ ꢡ ꢣ ꢠ ꢠ ꢛꢜ ꢬ ꢧꢗ ꢣ ꢠ ꢜꢗꢟ ꢜꢣ ꢡꢣ ꢠꢠ ꢋꢝ ꢛꢦ ꢫ ꢛꢜꢡ ꢦꢢꢧ ꢣ ꢟꢣ ꢠꢟꢛ ꢜꢬ ꢗꢌ ꢋꢦ ꢦ ꢤꢋ ꢝ ꢋꢞ ꢣꢟꢣ ꢝ ꢠꢊ  
Copyright 2002 − 2004, Texas Instruments Incorporated  
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中文翻译

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