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TPS23851DCER The Texas Instruments TPS23851DCER is a quad-channel Power over Ethernet (PoE) controller. It supports IEEE 802.3at and 802.3af standards.
Mfr Part #:

TPS23851DCER

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS23851DCER is a quad-channel Power over Ethernet (PoE) controller. It supports IEEE 802.3at and 802.3af standards.
✓ Total Stock: 27,500 pcs
$ Price Range: $1.57

TPS23851DCER Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
22,600 pcs
On Request
22600 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
4,900 pcs
On Request
4900 pcs On Request 1 On Request On Request 16+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TPS23851DCER Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Auxiliary Sense
Current
Internal Switch(s)
Mounting Type
Number of Channels
Operating Temperature
Power
Standards
Supplier Device Package
Type
Voltage
Voltage Supply
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TPS23851DCER Description

Short technical summary and product information.

The Texas Instruments TPS23851DCER is a quad-channel Power over Ethernet (PoE) controller designed for Power Sourcing Equipment (PSE). It is fully compliant with IEEE Std 802.3at-2009 and 802.3af standards, enabling it to insert power onto Ethernet cables.

 

This controller features four independent PSE ports, supporting PD detection and classification. It includes current limit output protection with foldback and AC/DC disconnect detection. The device communicates via I2C and has a 4-bit address for larger systems. Enhanced features include onboard precision 110-Hz AC disconnect sine wave oscillator and 14-bit A/D converters for real-time voltage and current monitoring.

 

The TPS23851DCER operates within a supply voltage range of 44V to 57V and has a supply current of 2mA. It is specified for an operating temperature range of -20°C to 85°C, with extended operation up to 125°C. The component is housed in a 36-SSOP package and is designed for surface mounting.

 

Applications include Ethernet switches and routers requiring Power over Ethernet capabilities. The controller's robust design and monitoring features make it suitable for reliable power delivery in network infrastructure.

TPS23851DCER Quick Information

Product Type: Power Over Ethernet (PoE) Controller
Series: TPS23851
Canonical Name: TPS23851DCER Quad IEEE 802.3at Power-Over-Ethernet PSE Controller
Subcategory: PMIC - Power Over Ethernet (PoE) Controllers

TPS23851DCER Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TPS23851DCER Estimated Pricing

Qty Low High
1+ $1.57 $1.57

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPS23851DCER Features

  • Fully IEEE 802.3at-2009 compliant.
  • Four independent PSE ports.
  • Supports PD detection and classification.
  • I2C communication interface.
  • Operates from 44V to 57V supply.

TPS23851DCER Applications

  • Used in PoE switches and midspans.
  • Ideal for industrial Ethernet equipment.
  • Suitable for IP cameras and wireless access points.
  • For VoIP phone systems.
  • For building automation PoE applications.

TPS23851DCER FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the TPS23851DCER?

The supply voltage range is 44V to 57V.

What package does the TPS23851DCER come in?

It is available in a 36-SSOP (36-BSOP, 7.50mm width) surface-mount package.

What is the operating temperature range?

The operating temperature range is -20°C to 85°C, with extended operation up to 125°C.

How many PoE channels does the TPS23851DCER support?

It supports 4 independent PSE channels.

What PoE standards are supported?

It supports IEEE 802.3at (PoE+) and 802.3af (PoE).

Does the TPS23851DCER include internal switches?

No, internal switches are not included; external MOSFETs are required.

What communication interface does the TPS23851DCER use?

It uses an I2C interface with 4-bit addressing, allowing up to 64 ports in a system.

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