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PM8803 +BOM

High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller

PM8803 General Description

One of the standout features of the PM8803 is its ability to work with power from either the Ethernet cable or an external power source like a wall adapter. This ensures flexibility and prioritizes the auxiliary source over PoE when both are available. Additionally, the PM8803's DC-DC section boasts a range of programmable features, including oscillator frequency, slope compensation, dual complementary low-side drivers, dead time adjustment, and an internal temperature sensor

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Key Features

  • IEEE 802.3at compliant PD interface
  • Works with power supplied from Ethernet LAN cables or from local auxiliary sources
  • Successful IEEE802.3at Layer1 classification indicator
  • Integrated 100 V, 0.45 Ω, 1 A hot-swap MOSFET
  • Accurate 140 mA typ. inrush current level
  • Programmable classification current
  • Programmable DC current limit up to 1 A
  • Integrated high voltage start-up bias regulator
  • Thermal shutdown protection
  • Current mode pulse width modulator
  • Programmable oscillator frequency
  • 80% maximum duty cycle with internal slope compensation
  • Support for flyback, forward, forward active clamp, flyback with synchronous rectification
Stmicroelectronics Original Stock
Stmicroelectronics Inventory

Specifications

ECCN US EAR99 ECCN EU NEC
Packing Type Tube Grade Industrial

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Ratings and Reviews

More
W
W**m 09/22/2023

Everything is small-compact, good! Performance did not check. Once, i will solder the chip to the site...

1
A
A**n 07/04/2023

Shipping tracked! Thank you! All super!!!

19
M
M**n 01/21/2023

Dear seller, Thank you for the goods and I am very satisfied with your service.Regards V.Kocka-Amort

13
E
E**n 11/30/2020

Not tracked, but it came...

19

Reviews

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