TPS2377 Status: ACTIVE

IEEE 802.3af PoE Powered Device Controllers

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Datasheet

TPS237x: IEEE 802.3af PoE Powered Device Controllers (Rev. B) (PDF 564 KB)
25 Apr 2008

	TPS2375	TPS2375-1	TPS2376	TPS2376-H	TPS2377	TPS2377-1
PoE Standards Supported	802.3at type1	802.3at type1	802.3at type1	802.3at type1 (high current)	802.3at type1	802.3at type1
PD Power Level	13W	13W	13W	25W	13W	13W
PoE Inrush Limit(Typ)(mA)	Programmable	Programmable	Programmable	Programmable	Programmable	Programmable
PoE Current Limit(Min)(mA)	405	405	405	625	405	405
UVLO	802.3af	802.3af	Adjustable	Adjustable	Unified	Unified
rDS(on) per FET(Typ)(mOhms)	580	580	580	580	580	580
Fault Response	Latch	Auto Retry	Latch	Auto Retry	Latch	Auto Retry
Error Amplifier	N/A	N/A	N/A	N/A	N/A	N/A
Auxiliary/Local Power Support	External Circuit	External Circuit	External Circuit	External Circuit	External Circuit	External Circuit
Auxiliary Power Rails Supported	N/A	N/A	N/A	N/A	N/A	N/A
Driven/Active Clamp (Second Gate Drive)	N/A	N/A	N/A	N/A	N/A	N/A
Duty Cycle(%)	N/A	N/A	N/A	N/A	N/A	N/A
Switching Frequency	N/A	N/A	N/A	N/A	N/A	N/A
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	8SOIC, 8TSSOP	8TSSOP	8SOIC, 8TSSOP	8SO PowerPAD	8SOIC, 8TSSOP	8SOIC
Approx. Price (US$)	1.00 \| 1ku	1.00 \| 1ku	1.00 \| 1ku	1.25 \| 1ku	1.00 \| 1ku	1.00 \| 1ku
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS2377-1: IEEE 802.3af PoE Powered Device Controllers
TPS2376: IEEE 802.3af PoE Powered Device Controllers
TPS23757: High Efficiency PoE Interface and DC/DC Controller

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Product Information

Features

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

Description

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.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TPS2377D	ACTIVE	-40 to 85	1.10 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
TPS2377DG4	ACTIVE	-40 to 85	1.10 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
TPS2377DR	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS2377DRG4	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS2377PW	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE
TPS2377PWG4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE
TPS2377PWR	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
TPS2377PWRG4	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 8	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 10:08 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 1 WeekTPS2377D
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	131
Europe	Avnet-SILICA	225
Europe	Farnell	131
Worldwide	DigiKey	440
TI Lead Time*: 1 WeekTPS2377DG4
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	225
TI Lead Time*: 20 WeeksTPS2377DR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS2377DRG4
Worldwide	DigiKey	Available
TI Lead Time*: 1 WeekTPS2377PW
Americas	Avnet	10
Americas	Rochester Electronics	>1k
Asia	WPI	277
Worldwide	DigiKey	147
TI Lead Time*: 1 WeekTPS2377PWG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS2377PWR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS2377PWRG4
Worldwide	DigiKey	Available
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
TPS2377D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2377PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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 TPS2377

Datasheet

TPS237x: IEEE 802.3af PoE Powered Device Controllers (Rev. B) (PDF, 564 KB)
25 Apr 2008

Application Notes

Powered Device Controllers Comparison (HTM, 8 KB) 1735 views
22 Apr 2004 Read Abstract
25-W, High-Power PoE Using the TPS2376-H (HTM, 9 KB) 2903 views
13 Oct 2006 Read Abstract
Designing an EMI Compliant PoE with Isolated Flyback (HTM, 8 KB) 1756 views
20 May 2008 Read Abstract
Practical Guidelines EMI Compliant PoE (HTM, 8 KB) 1435 views
27 Mar 2008 Read Abstract

View Application Notes for Powered Devices

Reference Designs

Description	Part #	Company
12V, 1A Isolated PoE PD Power Supply Reference Design	PMP940	Texas Instruments
Isolated, Low Cost, Non-Synchronous PoE PD Power Supply Reference Design	PMP717	Texas Instruments
Isolated, Synchronous Flyback, 3.3V @ 3A or 5V @ 2A PoE PD Power Supply Reference Design	PMP929	Texas Instruments
Non-Isolated PoE PD Power Supply Reference Design	PMP841	Texas Instruments

Tools & Software

Name	Part #	Company	Tool / Software Type
Free Tool: TPS2375/77 Design-in Calculator	TPS2375OR77CALC	Texas Instruments	Calculation Utilities
TPS2375 IEEE802.3af POE Powered Device Evaluation Module	TPS2375EVM	Texas Instruments	Development Boards/EVMs
TPS2375/TPS2377 Design-in Calculation Tool(ZIP 120 KB ) 734 views 04 May 2004

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS2377-1	IEEE 802.3af PoE Powered Device Controllers	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS2376	IEEE 802.3af PoE Powered Device Controllers	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23757	High Efficiency PoE Interface and DC/DC Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS23770	IEEE 802.3af PD Controller with Integrated DC/DC	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.
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.
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.
TPS2375-1	IEEE 802.3af PoE Powered Device Controllers	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.

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TPS2377 Status: ACTIVE

IEEE 802.3af PoE Powered Device Controllers

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