計算工具
TPS23753
- Optimized for Isolated Converters
- Complete PoE Interface
- Adapter ORing Support
- 12 V Adapter Support
- Programmable Frequency with Synch.
- Robust 100 V, 0.7
Hotswap MOSFET - Small TSSOP 14 Package
- 15 kV / 8 kV System Level ESD Capable
- –40°C to 125°C Junction Temperature Range
- Design Procedure Application Note - SLVA305
- Adapter ORing Application Note - SLVA306
- APPLICATIONS
- IEEE 802.3at Compliant Powered Devices
- VoIP Telephones
- Access Points
- Security Cameras
The TPS23753 is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode dc/dc controller optimized specifically for isolated converter designs. The PoE implementation supports the IEEE 802.3at standard as a 13 W, type 1 PD. The requirements for an IEEE 802.3at type 1 device are a superset of IEEE 802.3-2008 (originally 802.3af) requirements.
The TPS23753 supports a number of input-voltage ORing options including highest voltage, external adapter preference, and PoE preference.
The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor.
The dc/dc controller features a bootstrap startup mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pull up resistor.
The programmable oscillator may be synchronized to a higher-frequency external timing reference.
技術文件
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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | IEEE 802.3 PoE Interface and Isolated Converter Controller datasheet (Rev. C) | 2010年 1月 4日 | |
| Technical article | How to reduce the size of your 13-W PoE PD solution | PDF | HTML | 2019年 6月 25日 | |
| Technical article | Maximizing PoE PD efficiency on a budget | PDF | HTML | 2015年 11月 10日 | |
| Application note | Lightning Surge Considerations for PoE Powered Devices | 2015年 4月 30日 | ||
| Application note | Designing with the TPS23753 Powered Device and Power Supply Controller (Rev. C) | 2013年 1月 10日 | ||
| Application note | Implementing a Buck Converter With the TPS23753A | 2010年 9月 20日 | ||
| Application note | Advanced Adapter ORing Solutions using the TPS23753 (Rev. A) | 2009年 2月 9日 | ||
| Application note | PoE Powered Device for 24 VAC Building Power Applications | 2008年 9月 10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 |
設計與開發
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開發板
TPS23753AEVM-001 — 適用於 TPS23753AEVM-001 的 5Vout、7W、遵循 IEEE 802.3-2005、PD 控制器 EVM
The TPS23753AEVM-001 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-002 (3.3-V output) can be configured with simple (...)
使用指南: PDF
開發板
TPS23753AEVM-004 — TPS23753AEVM-004 3.3Vout 10W 遵循 IEEE 802.3-2005 的 PD 控制器、PS 控制器評估模組
TPS23753AEVM-004 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-003 (5-V output) and TPS23753AEVM-005 (12-V output) (...)
使用指南: PDF
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 | 引腳 | 下載 |
|---|---|---|
| TSSOP (PW) | 14 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點