首页 > TI 德州仪器 > 电源管理 > 热插拔和功率分配

TPS23753 IEEE 802.3-2005 PoE 接口和隔离式转换控制器

TPS23753 描述

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

	TPS23753	TPS23753	TPS23753A	TPS23757	TPS23770
PoE Standards Supported	802.3at type1	802.3at type1	802.3at type1	802.3at type1	802.3at type1
PD Power Level	13W	13W	13W	13W	13W
PoE Inrush Limit(Typ)(mA)	140	140	140	140	140
PoE Current Limit(Min)(mA)	405	405	405	400	405
UVLO	802.3af	Unified	Unified	Unified	Unified
rDS(on) per FET(Typ)(mOhms)	600	700	700	430	600
Fault Response	Auto Retry	Auto Retry	Auto Retry	Auto Retry	Auto Retry
Error Amplifier	Yes	No	No	No	Yes
Auxiliary/Local Power Support	External Circuit	Programmable	Programmable	Programmable	External Circuit
Auxiliary Power Rails Supported	24V-57V	12V-57V	12V-57V	12V-57V	24V-57V
Driven/Active Clamp (Second Gate Drive)	No	No	No	Yes	No
Duty Cycle(%)	50	78	78	78	50
Switching Frequency	Programmable	Synchronizable and Programmable	Synchronizable and Programmable	Synchronizable and Programmable	Programmable
Operating Temperature Range(°C)	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 85
Pin/Package	20HTSSOP	14TSSOP	14TSSOP	20TSSOP	20HTSSOP
Approx. Price (US$)	1.50 | 1ku	1.45 | 1ku	1.45 | 1ku	1.65 | 1ku	1.50 | 1ku
Rating	Catalog	Catalog	Catalog	Catalog	Catalog

TPS23753 特性

• Optimized for Isolated Converters
• Complete PoE Interface
• Adapter ORing Support
• 12 V Adapter Support
• Programmable Frequency with Synch.
• Robust 100 V, 0.7 Ω 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

TPS23753 芯片订购指南

器件	状态	温度 (oC)	价格（美元） | Quantity	封装 | 引脚	封装数量 | 封装载体	丝印标记
TPS23753PW	ACTIVE	-40 to 125	2.00 | 1ku	TSSOP (PW) | 14	70 | TUBE	TPS23753
TPS23753PWR	ACTIVE	-40 to 125	1.65 | 1ku	TSSOP (PW) | 14	2000 | LARGE T&R	TPS23753

TPS23753 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TPS23753PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS23753PW	TPS23753PW
TPS23753PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TPS23753PWR	TPS23753PWR

TPS23753 应用技术支持与电子电路设计开发资源下载

1. TPS23753 数据资料 dataSheet 下载.PDF
2. TI 德州仪器受电器件产品选型与价格 . xls
3. PowerPAD™ Thermally Enhanced Package   (PDF  1040 KB)
4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
6. Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs   (PDF  356 KB)
7. PowerPAD™ Made Easy (PDF 57 KB)
8. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
9. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
10. 所选封装材料的热学和电学性质 (PDF 645 KB)
11. 高速数据转换 (PDF 1967 KB)

TPS23753 相关工具

名称	型号	公司	工具/软件类型
符合 IEEE 802.3-2005 的 3.3V 输出电压、10W PD 控制器，用于 TPS23753 的 PS 控制器评估模块	TPS23753EVM-004	Texas Instruments	开发电路板/EVM
符合 IEEE 802.3-2005 的 5V 输出电压、7W PD 控制器，用于 TPS2375 的 PS 控制器评估模块	TPS23753EVM-001	Texas Instruments	开发电路板/EVM
TPS23753 评估模块	TPS23753EVM	Texas Instruments	开发电路板/EVM