PM8803TR

$2.37

Description：IC POE CNTRL 1 CHANNEL 20HTSSOP
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:cbf07f349c0d Category: Power Over Ethernet (PoE) Controllers Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 1 CHANNEL 20HTSSOP
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Controller (PD), DC/DC
Number of Channels：1
Power - Max：25.5 W
Internal Switch(s)：Both
Auxiliary Sense：No
Standards：802.3at (PoE+), 802.3af (PoE)
Voltage - Supply：-
Current - Supply：-
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-HTSSOP

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PM8803TR

Overview

The PM8803TR is a PoE/PD interface controller and PWM DC/DC converter designed for IEEE 802.3af and 802.3at Powered Devices. It integrates a hot-swap voltage controller with a high-efficiency step-down regulator. The device operates within an input voltage range of 1.5 V to 48 V, supporting a maximum output power of 25.5 W. It features a single channel with a current limit of 1 A and consumes 800 uA of operating supply current. The component is housed in a 20-HTSSOP package with exposed pad and functions reliably between -40°C and +85°C.

Feature Summary

Integrates IEEE 802.3af/at compliant PoE-PD interface with embedded high-efficiency PWM controller
Combines hot-swap voltage control with integrated DC/DC conversion for simplified design
Supports wide input voltage range suitable for standard PoE and telecom applications

Applications

IEEE 802.3af (PoE) Powered Device implementations
IEEE 802.3at (PoE+) Powered Device implementations
Telecom system power management modules
Industrial Ethernet endpoint devices

Procurement Notes

Verify the specific suffix TR indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official STMicroelectronics documentation prior to procurement. Ensure ESD handling protocols are followed due to moisture sensitivity level 3 classification. Cross-reference the manufacturer part number PM8803TR directly with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component for designs requiring combined PoE detection and regulation in a single IC. It is suitable for applications needing up to 25.5 W output power from standard PoE sources. Consider the 20-HTSSOP package constraints for PCB layout. Verify that the 1 A current limit meets the load requirements of the target application without external protection circuits.

Part Context

The PM8803TR belongs to the PM8803 series of Power Management ICs focused on PoE solutions. It serves as a key component for powering networked devices over Ethernet cables. The series addresses the need for compact, efficient power delivery in industrial and commercial networking equipment. It replaces discrete solutions combining separate PoE controllers and DC/DC converters.