IEEE 802.3af PoE Powered Device Controllers - TPS2377

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Features	Samples	Technical Documents
Quality & Pb-Free Data	Pricing/Packaging	Application Notes
Related Products	Inventory	Simulation Models
Tools & Software	Symbols/Footprints	Reference Designs

Datasheet

	TPS237x: IEEE 802.3af PoE Powered Device Controllers (Rev. B) (tps2377.pdf, 562 KB) 25 Apr 2008 Download

	TPS2375	TPS2375-1	TPS2376	TPS2376-H	TPS2377	TPS2377-1
Current Limit(Min)(A)	0.405	0.405	0.405	0.625	0.405	0.405
rDS(on) per FET(Typ)(mOhms)	600	600	600	600	600	600
Pin/Package	8SOIC,8TSSOP	8TSSOP	8SOIC,8TSSOP	8SO PowerPAD	8SOIC,8TSSOP	8SOIC
UVLO	IEEE 802.3af	IEEE 802.3af	Adjustable	Adjustable	Legacy	Legacy
Fault Response	Latch	Re-try	Latch	Re-try	Latch	Re-try
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Approx. Price (US$)	1.25 \| 100u	1.25 \| 100u	1.25 \| 100u	1.60 \| 100u	1.25 \| 100u	1.25 \| 100u
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

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.

These Alternative Products:

TPS2376: IEEE 802.3af PoE Powered Devic...
TPS23770: IEEE 802.3af PD Controller wit...

These Complementary Products:

TPS2042B: Dual, Current-Limited, Power-D...
TPS5430: 5.5V to 36V Input, 3-A Step Do...

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View RoHS Compliant Devices

TPS2377, Status:ACTIVE
IEEE 802.3af PoE Powered Device Controllers

Power Over Ethernet (PoE)

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Pricing/Packaging/CAD Design Tools/Samples
			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Budget Price ($US) \| QTY	Industry Standard (TI Pkg) \| Pins	Top Side Marking	Standard Pack Quantity \| Package Carrier	Symbols	Footprints	Samples
TPS2377D	ACTIVE	-40 to 85	1.25 \| 100u	SOIC (D) \| 8	View	75 \| TUBE	Request Free Samples
TPS2377DG4	ACTIVE	-40 to 85	1.25 \| 100u	SOIC (D) \| 8	View	75 \| TUBE	Request Free Samples
TPS2377DR	ACTIVE	-40 to 85	1.25 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS2377DRG4	ACTIVE	-40 to 85	1.25 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS2377PW	ACTIVE	-40 to 85	1.25 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE	Request Free Samples
TPS2377PWG4	ACTIVE	-40 to 85	1.25 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE	Request Free Samples
TPS2377PWR	ACTIVE	-40 to 85	1.25 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
TPS2377PWRG4	ACTIVE	-40 to 85	1.25 \| 100u	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
	TI Inventory Status			Reported Distributor Inventory
TPS2377D	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 25 Aug	6 Weeks	Americas	Arrow	88
					DigiKey	161
					Rochester Electronics	>1k
				Europe	Avnet-SILICA	150
TPS2377DG4	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 25 Aug	6 Weeks	Europe	EBV Elektronik	38
TPS2377DR	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	9395 \| 25 Aug	6 Weeks	None Reported View Distributors
	>10k*	2500 \| 2 Sep	6 Weeks
TPS2377DRG4	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	9395 \| 25 Aug	6 Weeks	None Reported View Distributors
	>10k*	2500 \| 2 Sep	6 Weeks
TPS2377PW	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2550*	>10k \| 29 Sep	6 Weeks	Americas	Avnet	100
					DigiKey	174
					Rochester Electronics	>1k
				Asia	WPI	324
TPS2377PWG4	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2550*	>10k \| 29 Sep	6 Weeks	None Reported View Distributors
TPS2377PWR	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4000*	>10k \| 15 Sep	6 Weeks	Americas	Rochester Electronics	>1k
TPS2377PWRG4	As of 7:55 AM GMT, 24 Jul 2008			As of 7:55 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4000*	>10k \| 15 Sep	6 Weeks	None Reported View Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

TPS237x: IEEE 802.3af PoE Powered Device Controllers (Rev. B) (tps2377.pdf, 562 KB)
25 Apr 2008 Download

Application Notes

Designing an EMI Compliant PoE with Isolated Flyback (slua469.htm, 8 KB)
20 May 2008 Abstract

Practical Guidelines EMI Compliant PoE (slua454.htm, 8 KB)
27 Mar 2008 Abstract

25-W, High-Power PoE Using the TPS2376-H (slvu188.htm, 9 KB)
13 Oct 2006 Abstract

Powered Device Controllers Comparison (slva167.htm, 8 KB)
22 Apr 2004 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 (slvc065.zip, 120 KB ) 04 May 2004 zip

Complementary Products - Can be used with TPS2377
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS2042B	Dual, Current-Limited, Power-Distribution Switches	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TPS5430	5.5V to 36V Input, 3-A Step Down Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.

Alternative Products - Are similar to TPS2377
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS2376	IEEE 802.3af PoE Powered Device Controllers	TI customers also evaluated this product.
TPS23770	IEEE 802.3af PD Controller with Integrated DC/DC	TI customers also evaluated this product.