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參數(shù)資料
| 型號(hào)： | STHS4257A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識(shí)別電阻的IEEE802.3af PoE PD 接口控制器) |
| 中文描述： | IEEE 802.3af標(biāo)準(zhǔn)的PoE供電設(shè)備（PD）接口控制器，它集成簽名電阻（集成識(shí)別電阻的IEEE802.3af標(biāo)準(zhǔn)PoE電源接口控制器） |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 173K |
| 代理商： | STHS4257A |
Summary description
STHS4257A, STHS4257A1, STHS4257L, STHS4257L1
8/18
Figure 4.
Application circuit overview
1.
2.
STHS4257A1 and STHS4257L1 devices only. To disable signature, tie this pin to GND.
This configuration uses either data wires or spare wires for DC power.
Data to Ethernet Physical Layer Device
100
k
Ω
100μF,
100V
+
0.1μF,
100V
To DC/DC
Converter
Data to Ethernet Physical Layer Device
RCLASS
SMAJ58A
RCLASS
STHS4257A/L
STHS4257A1/L1
VIN
GND
VOUT
AI12203b
2x DF01S
RX
Pair
Spare
Pair
Spare
Pair
RJ-45
TX
Pair
PWRGD
SIGDISA(1)
C1
C2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STHS4257A1 | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識(shí)別電阻的IEEE802.3af PoE PD 接口控制器) |
| STHS4257L | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識(shí)別電阻的IEEE802.3af PoE PD 接口控制器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STHS4257A1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor |
| STHS4257A1M6E | 功能描述:熱插拔功率分布 ADV Analog RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| STHS4257A1M6F | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 STHS4257A STHS4257A1 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| STHS4257L | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor |
| STHS4257L1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor |
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