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PD69208T4 Datasheet(PDF) 3 Page - Microchip Technology

Part # PD69208T4
Description  PoE PSE Manager
Download  35 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PD69208T4 Datasheet(HTML) 3 Page - Microchip Technology

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Table of Contents
Introduction.....................................................................................................................................................1
Typical PoE Application...........................................................................................................................1
PoE Manager Features........................................................................................................................... 2
Chipset Features.....................................................................................................................................2
Applications.............................................................................................................................................2
1.
Functional Descriptions...........................................................................................................................5
1.1.
Digital Block Module.....................................................................................................................5
1.2.
PD Detection Generator............................................................................................................... 5
1.3.
Classification Generator............................................................................................................... 5
1.4.
Current Limiter..............................................................................................................................6
1.5.
Main Power MOSFET.................................................................................................................. 6
1.6.
10-Bit ADC................................................................................................................................... 6
1.7.
Power on Reset............................................................................................................................6
1.8.
Voltage Regulator.........................................................................................................................6
1.9.
Oscillator...................................................................................................................................... 6
1.10. SPI Communication......................................................................................................................6
2.
Electrical Specifications.......................................................................................................................... 7
2.1.
Absolute Maximum Ratings..........................................................................................................7
2.2.
Recommended Operating Conditions.......................................................................................... 7
2.3.
Immunity.......................................................................................................................................7
2.4.
Device Electrical Specifications....................................................................................................8
2.5.
Port Real-Time Protection............................................................................................................ 8
2.6.
Port Current Monitoring................................................................................................................ 9
2.7.
Port Voltage Monitoring.............................................................................................................. 10
2.8.
Main Voltage Monitoring.............................................................................................................10
2.9.
Temperature Monitoring............................................................................................................. 10
2.10. Digital Interface...........................................................................................................................11
2.11. Detection.................................................................................................................................... 11
2.12. Classification.............................................................................................................................. 12
3.
Pins....................................................................................................................................................... 13
3.1.
Pin Diagrams..............................................................................................................................13
3.2.
Pin Descriptions......................................................................................................................... 14
4.
Application Information..........................................................................................................................16
4.1.
Connection Check...................................................................................................................... 16
4.2.
PD Detection.............................................................................................................................. 16
4.3.
Legacy Detection........................................................................................................................16
4.4.
Classification.............................................................................................................................. 16
4.5.
Port Start-Up.............................................................................................................................. 16
4.6.
Over-Load Detection and Port Shut-Down.................................................................................17
4.7.
Disconnect Detection................................................................................................................. 17
4.8.
IC Thermal Monitoring................................................................................................................17
4.9.
Over-Temperature Protection..................................................................................................... 17
PD69208T4/PD69204T4/PD69208M
© 2020 Microchip Technology Inc.
Datasheet
DS00003428C-page 3


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