計算工具
TPS2377
- 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
- Fixed and Adjustable UVLO Options
- Open-Drain, Power-Good Reporting
- Overtemperature Protection
- Industrial Temperature Range: –40°C to 85°C
- 8-Pin SOIC and TSSOP Packages
- APPLICATIONS
- VoIP Phones
- WLAN Access Points
- Security Cameras
- Internet Appliances
- POS Terminals
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.
技術文件
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B) | 2008年 4月 25日 | |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 2021年 7月 19日 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 2021年 4月 29日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Lightning Surge Considerations for PoE Powered Devices | 2015年 4月 30日 | ||
| Application note | Designing an EMI Compliant PoE with Isolated Flyback | 2008年 5月 20日 | ||
| Application note | Practical Guidelines EMI Compliant PoE | 2008年 3月 27日 | ||
| Application note | 25-W, High-Power PoE Using the TPS2376-H | 2006年 10月 13日 | ||
| Application note | Powered Device Controllers Comparison | 2004年 4月 22日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS2375EVM — TPS2375 IEEE802.3af POE 供電裝置評估模組
The HPA028 EVM features the TPS2375 from Texas Instruments Incorporated. The EVM is designed to look like the front end of any Power Over Ethernet (PoE) Powered Device (PD) module. An RJ-45 connector is provided to connect directly to an Ethernet cable having a Power Sourcing Equipment (PSE) (...)
使用指南: PDF
計算工具
TPS2375OR77CALC — TPS2375/TPS2377 Design-in Calculation Tool
This calculator spreadsheet will aid in designing circuits with the TPS2375 and TPS2377. Simply enter the input voltage, the output power range, the output capacitance, and other application specifications, the values of the required external components for the TPS2375 or TPS2377, are (...)
支援產品和硬體
產品
供電產品
硬體開發
開發板
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。