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  • The PM8801 integrates a standard compliant Power over Ethernet (PoE) interface and a current mode PWM controller to simplify the design of the power supply sections of all powered devices.

    The PoE/PoE+ interface incorporates all the functions required by the IEEE 802.3at including detection, classification, undervoltage lockout (UVLO) and inrush current limitation.
    The PM8801 specifically performs IEEE802.3at Layer1 hardware classification, providing an indication of type 2 PSE successful detection to the rest of the system.
    The PM8801 has been designed to work with power either from the Ethernet cable connection or from an external power source such as a wall adapter, ensuring prevalence of the auxiliary source with respect to the PoE interface.
    The DC/DC section of the PM8801 features a programmable oscillator frequency, an adjustable slope compensation, dual complementary low-side drivers with programmable delay time and internal temperature sensor.
    The PM8801 targets high-efficiency conversion at all load conditions supporting flyback, forward, forward active clamp and synchronous rectification.

    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
    • Sleep mode with LED indicator and Maintain Power Signature (MPS)
    • Precise DC current limit set at 640 mA typ.
    • Integrated high-voltage startup 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

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
PM8801
NRND
HTSSOP24 Industrial Ecopack2
PM8801TR
NRND
HTSSOP24 Industrial Ecopack2

PM8801

Package:

HTSSOP24

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

HTSSOP24

Grade

Industrial

RoHS Compliance Grade

Ecopack2

PM8801TR

Package:

HTSSOP24

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

HTSSOP24

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
PM8801 Available at 1 distributors

Distributor availability ofPM8801

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-09-26

Distributor Name

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-26

Buy now
NRND
EAR99 NEC Tube HTSSOP24 - - PHILIPPINES
PM8801TR Available at 2 distributors

Distributor availability ofPM8801TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2400 1 Order Now
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-09-27

Distributor Name

MOUSER

Stock

2400

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-27

Buy now
NRND
EAR99 NEC Tape And Reel HTSSOP24 - - PHILIPPINES

PM8801

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofPM8801

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-09-26

Distributor Name

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-26

ECCN (EU)

NEC

Packing Type

Tube

Package

HTSSOP24

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

PHILIPPINES

PM8801TR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofPM8801TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2400 1 Order Now
Farnell Element14 EUROPE 37 1 Order Now

Distributor reported inventory date: 2020-09-27

Distributor Name

MOUSER

Stock

2400

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

37

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

HTSSOP24

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors