TPS23756 Status: ACTIVE

High Power/High Efficiency PoE Interface and DC/DC Controller

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Datasheet

High Power/High Efficiency PoE Interface and DC/DC Controller (Rev. C) (PDF 1537 KB)
01 Sep 2009

	TPS23754	TPS23754-1	TPS23756
PoE Standards Supported	802.3at type1,2	802.3at type1,2	802.3at type1,2
PD Power Level	25W	25W	25W
PoE Inrush Limit(Typ)(mA)	140	140	140
PoE Current Limit(Min)(mA)	850	850	850
UVLO	Unified	Unified	Unified
rDS(on) per FET(Typ)(mOhms)	430	430	430
Fault Response	Auto Retry	Auto Retry	Auto Retry
Error Amplifier	No	No	No
Auxiliary/Local Power Support	Programmable	Programmable	Programmable
Auxiliary Power Rails Supported	24V-57V	24V-57V	12V-57V
Driven/Active Clamp (Second Gate Drive)	Yes	Yes	Yes
Duty Cycle(%)	78	78	78
Switching Frequency	Synchronizable and Programmable	Synchronizable and Programmable	Synchronizable and Programmableup to 1MHz
Operating Temp Range(Celsius)	-40 to 125	-40 to 125	-40 to 125
Pin/Package	20HTSSOP	20HTSSOP	20HTSSOP
Approx. Price (US$)	1.90 \| 1ku	1.90 \| 1ku	1.90 \| 1ku
Rating	Catalog	Catalog	Catalog
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS23750: IEEE 802.3af PD Controller with Integrated DC/DC
TPS2376-H: IEEE 802.3af PoE HIGH POWER PD CONTROLLER
TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller
TPS65023: 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs
TLV431A: Low Voltage Adjustable Precision Shunt Regulator
TPS23841: High Power Wide Voltage Range Quad Port Ethernet Power Sourcing Equipment Manager

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Product Information

Features

Powers up to 30 W (input) PDs
DC/DC Control Optimized for Isolated Converters
Supports High-efficiency Topologies
Complete PoE Interface
Enhanced Classification per IEEE 802.3at (Draft) with Status Flag
Adapter ORing Support
Programmable Frequency with Synchronization
Robust 100 V, 0.5 Hotswap MOSFET
–40°C to 125°C Junction Temperature Range
Industry Standard PowerPAD TSSOP-20
APPLICATIONS
- IEEE 802.3at (Draft) Compliant Devices
- Video and VoIP Telephones
- RFID Readers
- Multiband Access Points
- Security Cameras

Description

The TPS23754/6 is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode dc/dc controller optimized specifically for isolated converters. The PoE interface supports the IEEE 802.3at (draft) standard.

The TPS23754/6 supports a number of input voltage ORing options including highest voltage, external adapter preference, and PoE preference. These features allow the designer to determine which power source will carry the load under all conditions.

The PoE interface features the new extended hardware classification necessary for compatibility with high-power midspan power sourcing equipment (PSE) per IEEE 802.3at (draft). The detection signature pin can also be used to force power from the PoE source off.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
TPS23756PWP	ACTIVE	-40 to 125	2.10 \| 1ku	HTSSOP (PWP) \| 20	View	70 \| TUBE
TPS23756PWPR	ACTIVE	-40 to 125	1.90 \| 1ku	HTSSOP (PWP) \| 20	View	2000 \| LARGE T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:17 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS23756PWP
Worldwide	DigiKey	32
	Mouser Electronics	115
TI Lead Time*: 20 WeeksTPS23756PWPR
None Reported View Distributors
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TPS23756PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS23756PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPS23756

Datasheet

High Power/High Efficiency PoE Interface and DC/DC Controller (Rev. C) (PDF, 1537 KB)
01 Sep 2009

Application Notes

PoE Powered Device for 24 VAC Building Power Applications (HTM, 8 KB) 1097 views
10 Sep 2008 Read Abstract
Designing an EMI Compliant PoE with Isolated Flyback (HTM, 8 KB) 1829 views
20 May 2008 Read Abstract
Practical Guidelines EMI Compliant PoE (HTM, 8 KB) 1463 views
27 Mar 2008 Read Abstract

View Application Notes for Powered Devices

User Guides

TPS23756EVM User's Guide (HTM, 8 KB) 154 views
03 Sep 2009 Read Abstract

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS23756EVM: Evaluation Module for TPS23756	TPS23756EVM	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
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TPS23750	IEEE 802.3af PD Controller with Integrated DC/DC	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS2376-H	IEEE 802.3af PoE HIGH POWER PD CONTROLLER	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23753	IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS2375	IEEE 802.3af PoE Powered Device Controllers	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23753A	IEEE 802.3-2005 PoE Interface and Isolated Converter Controller with Enhanced ESD Ride-Through	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23754-1	IEEE 802.3at PoE Interface and Isolated Converter Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23754	High Power/High Efficiency PoE Interface and DC/DC Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
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TPS23754EVM-383
TPS23754EVM-420

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TPS23756 Status: ACTIVE

High Power/High Efficiency PoE Interface and DC/DC Controller

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