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TPS23753

不推荐用于新设计

IEEE 802.3-2005 PoE 接口和隔离式转换控制器

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TPS23753 不推荐用于新设计
该产品会持续为现有客户提供。新设计应考虑替代产品。
open-in-new 比较替代产品
功能优于所比较器件的普遍直接替代产品
TPS23753A 正在供货 具有增强型 ESD 穿越功能的 IEEE 802.3-2005 PoE 接口和隔离转换器控制器 This product is integrated and more cost optimized for Type 1 PoE PD.

TPS23753

不推荐用于新设计
数据表 立即订购

产品详情

Vin (min) (V) 9.3 Vin (max) (V) 57 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 700 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Auto Retry Features Primary-side adapter priority, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
Vin (min) (V) 9.3 Vin (max) (V) 57 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 700 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Auto Retry Features Primary-side adapter priority, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
TSSOP (PW) 14 32 mm² 5 x 6.4
  • 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
  • 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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 IEEE 802.3 PoE Interface and Isolated Converter Controller 数据表 (Rev. C) 2010年 1月 4日

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点