TPS2384 Status: ACTIVE

Quad Ethernet Power Sourcing Equipment Power Manager

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Request PSE Software and Documentation at: www.ti.com/psesw

Datasheet

Quad Integrated Power Sourcing Equipment Power Manager (Rev. D) (PDF 1422 KB) 7257 views
29 Mar 2007
TPS2384 Power Sourcing Equipment Power Manager Device (PDF 158 KB) 1838 views
01 Dec 2006

	TPS2384	TPS23841
No. of Outputs	4	4
Adjustable Current Limit(Min)(A)		0.571
Vin(Min)(V)		34
Vin(Max)(V)		57
rDS(on) per FET(Typ)(mOhms)		1300
Approx. Price (US$)	5.10 \| 1ku	8.05 \| 1ku
Rating	Catalog	Catalog
Pin/Package	64HTQFP	64HTQFP
Operating Temp Range(Celsius)	-40 to 125	-40 to 125
	Samples	Samples
	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS23841: High Power Wide Voltage Range Quad Port Ethernet Power Sourcing Equipment Manager
TPS23750: IEEE 802.3af PD Controller with Integrated DC/DC
TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller
TPS2375: IEEE 802.3af PoE Powered Device Controllers

Product Information

Features

Quad-Port Power Management With Integrated Switches and Sense Resistors
Compliant to IEEE 802.3af Standard
Operates from a Single 48-V Input Supply
Individual Port 15-bit A/D
Auto, Semi-Auto and Power Management Operating Modes
Controlled Current Ramps for Reduced EMI and Charging of PD's Bulk Capacitance
I²C Clock and Oscillator Watchdog Timers
Over-Temperature Protection
DC and DC Modulated Disconnect
Supports Legacy Detection for Non-Compliant PD's
Supports AC Disconnect
High-Speed 400-kHz I²C Interface
Comprehensive Power Management Software Available
Operating Temperature Range &#q50;40°C to 125°C
APPLICATIONS
- Ethernet Enterprise Switches
- Ethernet Hubs
- SOHO Hubs
- Ethernet Mid-Spans
- PSE Injectors

Description

The TPS2384 is a quad-port power sourcing equipment power manager (PSEPM) and is compliant to the Power-over-Ethernet (PoE) IEEE 802.3af standard. The TPS2384 operates from a single 48-V supply and over a wide temperature range (–40°C to 125°C). Theintegrated output eliminates two external components per port (FET and sense resistor) and will survive 100-V transients. Four individual 15-bit A/D converters are used to measure port resistance, voltage, current and die temperature making PSE solutions simple and robust. The TPS2384 comes with a comprehensive software solution to meet the most demanding applications which can serve as a core for all PoE system designs.

The TPS2384 has three internal supply buses (10 V, 6.3 V and 3.3 V) generated from the 48-V input supply. These supplies are used to bias all internal digital and analog circuitry. Each supply has been brought out separately for proper bypassing to insure high performance. The digital supply (3.3 V) is available for powering external loads up to 2 mA. For more demanding loads it is highly recommended to use external buffers to prevent system degradation. When the TPS2384 is initially powered up an internal Power-on-Reset (POR) circuit resets all registers and sets all ports to the off state to ensure that the device is powered up in a known safe operating state.

The TPS2384 has three modes of operation; automode (AM), semi-automode (SAM) and power management mode (PMM).

In auto mode the TPS2384 performs discovery, classification and delivery of power autonomously to a compliant PD without the need of a micro-controller.
In semi-automode the TPS2384 operates in automode but users can access the contents of all read status registers and A/D registers through the I²C serial interface. All write control registers are active except for D0 through D3 of Port Control register 1 (Address 0010) for limited port control. The semi-auto mode allows the TPS2384 to detect valid PD's without micro-controller intervention but adds a flexibility to perform power management activities.
Power management mode (with a micro-controller) allows users additional capabilities of discovering non-compliant (legacy) PDs, performing AC Disconnect and advanced power management system control that are based on real time port voltages and currents. All functions in this mode are programmed and controlled through read/write registers over the I²C interface. This allows users complete freedom in detecting and powering devices. A comprehensive software package is available that mates the power of the TPS2384 with the MSP430 micro-controller.

TPS2384 integrated output stage provides port power and low-side control. The internal low-side circuitry is designed with internal current sensing so there are no external resistors required. The output design ensures the power switches operate in the fully enhanced mode for low power dissipation.

The I²C interface allows easy application of opto-coupler circuitry to maintain Ethernet port isolation when a ground based micro-controller is required. The TPS2384 five address pins (A1—A5) allow the device to be addressed at one of 31 possible I²C addresses. Per-port write registers separately control each port state (discovery, classification, legacy, power up, etc) while the read registers contain status information of the entire process along with parametric values of discovery, classification, and real-time port operating current, voltage and die temperature.

The proprietary 15-bit integrating A/D converter is designed to meet the harsh environment where the PSEPM resides. The converter is set for maximum rejection of power line noise allowing it to make accurate measurements of line currents during discovery, classification and power delivery for reliable power management decisions.

TheTPS2384 is available in either 64-pin PowerPAD™ down (PAP) or 64-pin PowerPAD™ up (PJD) packages.

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	Samples
TPS2384PAP	ACTIVE	-40 to 125	5.60 \| 1ku	HTQFP (PAP) \| 64	View	160 \| JEDEC TRAY (5+1)
TPS2384PAPG4	ACTIVE	-40 to 125	5.60 \| 1ku	HTQFP (PAP) \| 64	View	160 \| JEDEC TRAY (5+1)
TPS2384PAPR	ACTIVE	-40 to 125	5.10 \| 1ku	HTQFP (PAP) \| 64	View	1000 \| LARGE T&R	Purchase Samples
TPS2384PAPRG4	ACTIVE	-40 to 125	5.10 \| 1ku	HTQFP (PAP) \| 64	View	1000 \| LARGE T&R	Purchase Samples
TPS2384PJD	ACTIVE	-40 to 125	5.60 \| 1ku	HTQFP (PJD) \| 64		160 \| JEDEC TRAY (5+1)
TPS2384PJDG4	ACTIVE	-40 to 125	5.60 \| 1ku	HTQFP (PJD) \| 64		160 \| JEDEC TRAY (5+1)
TPS2384PJDR	ACTIVE	-40 to 125	5.10 \| 1ku	HTQFP (PJD) \| 64		1000 \| LARGE T&R		Purchase Samples
TPS2384PJDRG4	ACTIVE	-40 to 125	5.10 \| 1ku	HTQFP (PJD) \| 64		1000 \| 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
TPS2384PAP	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	Americas	Arrow	>1k
			Avnet	53
			Mouser Electronics	16
			Newark	110
		Asia	WPI	202
		Europe	Arrow Southern Europe	12
		Europe	Farnell	1
TPS2384PAPG4	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	None Reported View Distributors
TPS2384PAPR	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	None Reported View Distributors
TPS2384PAPRG4	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	6 Weeks	None Reported View Distributors
TPS2384PJD	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	410
	4 Weeks	Americas	Mouser Electronics	137
TPS2384PJDG4	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TPS2384PJDR	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TPS2384PJDRG4	As of 8:47 AM GMT, 03 Jul 2009	As of 8:47 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	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
TPS2384PAP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PAPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PAPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PAPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PJD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PJDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PJDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TPS2384PJDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	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 TPS2384

Datasheet

Quad Integrated Power Sourcing Equipment Power Manager (Rev. D) (PDF 1422 KB) 7257 views
29 Mar 2007

Application Notes

Using Standard Power-Over-Ethernet Controllers for High-Powered Devices (HTM 8 KB) 2245 views
07 Apr 2006 Read Abstract
PSE Controller Interface Control (Rev. A) (HTM 8 KB) 1294 views
21 Apr 2005 Read Abstract
Proper Termination of Unused Port Connections (Rev. A) (HTM 8 KB) 941 views
03 Nov 2006 Read Abstract
Electrical Transient Immunity for Power-over-Ethernet (PoE) (Rev. A) (HTM 8 KB) 1370 views
07 Aug 2006 Read Abstract
Opto-Isolator Selection Guidelines: TPS2384 I2C Interface (HTM 8 KB) 1857 views
27 Feb 2006 Read Abstract
PSE Solution Delivers High Power-over-Ehernet to 25-W PD Over Two Pairs (HTM 8 KB) 1322 views
21 Feb 2006 Read Abstract
Simple PSE Solution Delivers High Power-Over-Ethernet to 31-35W PD over Four Pai (HTM 8 KB) 986 views
27 Mar 2006 Read Abstract
Simple PSE Solution Delivers High Power-Over-Ethernet to 16-18W PD Over Two Pai (HTM 8 KB) 2171 views
06 Mar 2006 Read Abstract
Implementation of a Port ON LED in PSE Systems (HTM 8 KB) 581 views
23 Jun 2006 Read Abstract

User Guides

TPS2384 (Rev. C) (PDF 631 KB) 2523 views
23 Jun 2006
TPS2384 Eight Port EVM (PDF 2256 KB) 2258 views
12 Apr 2006
Firmware User's Guide (PDF 590 KB) 813 views
05 Jun 2007
Using the TPS2384 Reference Design (PDF 40 KB) 960 views
10 May 2007

View User Guides for Power Sourcing Equipment

Errata

TPS2384 Power Sourcing Equipment Power Manager Device (PDF 158 KB) 1838 views
01 Dec 2006

More Literature

TPS2384_841 Control GUI v1.4.5 (ZIP 95 KB) 158 views
24 Sep 2008

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS2384 PoE_PSE_Evaluation_Module_for_Enterprise_Ethernet_Switches	TPS2384EVM-152	Texas Instruments	Development Boards/EVMs
TPS2384EVM PoE Auto mode Evaluation Module	TPS2384EVM	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
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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.
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TPS2384 Status: ACTIVE

Quad Ethernet Power Sourcing Equipment Power Manager

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Datasheet

Customers Who Evaluated This Product Also Evaluated

Product Information

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Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Errata

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Tools & Software

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TPS2384 Status: ACTIVE

Quad Ethernet Power Sourcing Equipment Power Manager

Most Popular Links

Special Note

Datasheet

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Errata

More Literature

Tools & Software

Related Products

Related End Equipments

Support and Community

Customer Tags

Other Support