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    PM8803

    PM8803

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    PM8803TR

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

    Parameters
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    RoHs compliantEcopack2
    GradeIndustrial
    Package NameHTSSOP20
    Description

    The PM8803 integrates a 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 includes all functions required by the IEEE 802.3at as well as detection, classification, undervoltage...
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    Key features
    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
    In stock
    Quantity $ per unit Savings
    1-9$2.730%
    10-24$2.0525%
    25-99$1.8731%
    100-249$1.6938%
    250-499$1.5942%
    500$1.5444%
    500 + Contact sales
    $2.73
    $2.73
    Parameters
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    RoHs compliantEcopack2
    GradeIndustrial
    Package NameHTSSOP20
    Description

    The PM8803 integrates a 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 includes all functions required by the IEEE 802.3at as well as detection, classification, undervoltage...
    Read More

    Key features
    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
    Associated products