TPS23750 Status: ACTIVE

IEEE 802.3af PD Controller with Integrated DC/DC

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Datasheet

Integrated 100-V IEEE 802.3af PD and DC/DC Controller (Rev. B) (PDF 1332 KB)
07 Feb 2008

	TPS23750	TPS23753	TPS23753A	TPS23770
PoE Standards Supported	802.3at type1	802.3at type1	802.3at type1	802.3at type1
PD Power Level	13W	13W	13W	13W
PoE Inrush Limit(Typ)(mA)	140	140	140	140
PoE Current Limit(Min)(mA)	405	405	405	405
UVLO	802.3af	Unified	Unified	Unified
rDS(on) per FET(Typ)(mOhms)	600	700	700	600
Fault Response	Auto Retry	Auto Retry	Auto Retry	Auto Retry
Error Amplifier	Yes	No	No	Yes
Auxiliary/Local Power Support	External Circuit	Programmable	Programmable	External Circuit
Auxiliary Power Rails Supported	24V-57V	12V-57V	12V-57V	24V-57V
Driven/Active Clamp (Second Gate Drive)	No	No	No	No
Duty Cycle(%)	50	78	78	50
Switching Frequency	Programmable	Synchronizable and Programmableup to 1MHz	Synchronizable and Programmable	Programmable
Operating Temp Range(Celsius)	-40 to 85	-40 to 125	-40 to 125	-40 to 85
Pin/Package	20HTSSOP	14TSSOP	14TSSOP	20HTSSOP
Approx. Price (US$)	1.50 \| 1ku	1.45 \| 1ku	1.45 \| 1ku	1.50 \| 1ku
Rating	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS2375: IEEE 802.3af PoE Powered Device Controllers
TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller
TPS23756: High Power/High Efficiency PoE Interface and DC/DC Controller
TPS65021: 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C interface and Dynamic Voltage Scaling
TPS62110: Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16
TPS62260: 2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package

More Related Products

Product Information

Features

Complete 802.3af PoE Interface
- Features derived from the TPS2375
- 100 V, 0.6 Internal Pass MOSFET
- Standard and Legacy UVLO Choices
- Fixed 140 mA Inrush Limit
Primary Side DC/DC Converter Control
- Minimum External Component Count
- Current Mode Control
- Isolated and Non-Isolated Topologies
- Programmable Operating Frequency
- Current Sense Leading-edge Blanking
- 50% Duty Cycle Limiting
- Voltage Output Error Amplifier
Internal PoE and Converter Sequencing
Industry-Standard 20 Lead Package
Industrial Temperature Range, -40°C to 85°C
APPLICATIONS
- All PoE PD Devices Including:
  - Wireless Access Points
  - VoIP Phones

View All Features in Datasheet

Description

The TPS23750 integrates the functionality of the TPS2375 with a primary side dc/dc PWM controller. The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

The PoE front end has all the necessary IEEE 802.3af functions including detection, classification, undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.

The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.

The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit.

View All Description in Datasheet

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
TPS23750PWP	ACTIVE	-40 to 85	1.65 \| 1ku	HTSSOP (PWP) \| 20	View	70 \| TUBE	Purchase Samples
TPS23750PWPG4	ACTIVE	-40 to 85	1.65 \| 1ku	HTSSOP (PWP) \| 20	View	70 \| TUBE	Purchase Samples
TPS23750PWPR	ACTIVE	-40 to 85	1.50 \| 1ku	HTSSOP (PWP) \| 20	View	2000 \| LARGE T&R
TPS23750PWPRG4	ACTIVE	-40 to 85	1.50 \| 1ku	HTSSOP (PWP) \| 20	View	2000 \| LARGE T&R

* 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 10:18 AM GMT, 26 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS23750PWP
Asia	Farnell Asia	4
TI Lead Time*: 20 WeeksTPS23750PWPG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS23750PWPR
Asia	WPI	>1k
TI Lead Time*: 20 WeeksTPS23750PWPRG4
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
TPS23750PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS23750PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS23750PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS23750PWPRG4	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 TPS23750

More Literature

TPS23750PWP Schematic (PDF, 93 KB) 965 views
19 Feb 2008
TPS23750PWP Bill of Materials (PDF, 28 KB) 430 views
19 Feb 2008
TPS23750PWP Test Report (PDF, 459 KB) 346 views
19 Feb 2008
Reference Design Cookbook 2 - Power Management (PDF, 3733 KB) 18885 views
27 Feb 2006

Reference Designs

Description	Part #	Company
12 V @ 1 A Isolated Flyback Converter for Power-Over-Ethernet PD Applications	PMP2459	Texas Instruments

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS23750 Evaluation Module Buck	TPS23750EVM-107	Texas Instruments	Development Boards/EVMs
TPS23750 Evaluation Module Flyback	TPS23750EVM-108	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
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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.
TPS23756	High Power/High Efficiency PoE Interface and DC/DC Controller	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.
TPS23770	IEEE 802.3af PD Controller with Integrated DC/DC	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
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TPS62110	Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
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All End-Equipment

TPS23750 Status: ACTIVE

IEEE 802.3af PD Controller with Integrated DC/DC

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Datasheet

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