Manufacturer Part Number

TPS23734RMTR

Description

IEEE 802.3bt/PoE power controller supporting Type 3, Class 1-4, with integrated DC/DC controller. Supports single-channel operation and high power up to 90 W. Designed for power over ethernet applications and uses surface-mount packaging.

Specifications

Supports 0V to 60V input voltage

Max output power: 90 W

Single channel operation

Internal switches included

Auxiliary Sense feature

Standard compliance: IEEE 802.3at (PoE+) and IEEE 802.3bt

Supply current: 20 mA

Operating temperature range: -40°C to 125°C (junction temperature)

45-VQFN (7x5 mm) package with exposed pad

Moisture Sensitivity Level: 3 (168 hours)

RoHS3 compliant, REACH unaffected

Device Structure

Monolithic controller for Powered Devices (PD) in PoE systems

Includes DC-DC converter functionality

Integrated MOSFET (internal switches)

Auxiliary voltage sense and control logic

Exposed pad for improved thermal performance

Performance Characteristics

Supports up to 90 W for PoE applications (suitable for power-hungry devices)

Robust operation from -40°C to +125°C

High efficiency, integrated switching design lowers external part count

Quick and reliable classification per IEEE standards

Supports both PoE+ (802.3at) and higher-power PoE (802.3bt) infrastructure

Application Environments

Commercial and enterprise IP phones

Wireless access points

Network video surveillance cameras

Building automation controllers

Industrial automation equipment

Any device needing power over Ethernet with up to 90W supplied

Selection Guidelines

Choose for new PoE Powered Device designs that need up to 90W and IEEE 802.3bt compliance

Surface-mount 45-VQFN package, suitable for automated assembly

Verify voltage and thermal requirements for your system

Check compatibility with Ethernet switch or PSE (Power Sourcing Equipment)

Works well where internal switches and auxiliary voltage sensing are needed

Usage Considerations

Follow handling precautions for MSL3 devices

Ensure correct PCB layout for power and thermal dissipation

Observe supply and load limits (do not exceed 60V input or 90W power)

Use appropriate ESD and surge protection on Ethernet lines

Observe recommended storage and reflow profiles

Potential Equivalent/Replacement Models

Some alternative Texas Instruments models (depending on requirements) include TPS2373, TPS2372, and TPS2376, but verify power and standard compatibility. Other manufacturers may offer similar IEEE 802.3bt PoE PD controllers like the Analog Devices LTC4296 or Microchip PD70224. Always confirm PCB footprint, features, and electrical ratings.

If you cannot find an exact equivalent, or need further guidance, please contact the Ariat-Tech sales team for more support and custom recommendations.

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