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MAX5952 - PSE Controller

General Description

The MAX5952 is a quad -48V power controller designed for use in IEEE® 802.3af-compliant/pre-IEEE 802.3at-compatible power-sourcing equipment (PSE).

This device provides powered device (PD) discovery, classification, current limit, DC and AC load disconnect detections in compliance with the IEEE 802.

Key Features

  • The MAX5952 features high-power mode that provides up to 45W per port. The MAX5952 provides instantaneous readout of each port current through the I2C interface. The MAX5952 also provides high-capacitance detection for legacy PDs. The device features an I2C-compatible, 3-wire serial interface, and is fully software configurable and programmable. The class-overcurrent detection function enables system power management to detect if a PD dra.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-0858; Rev 1; 1/10 EVAALVUAAILTAIOBNLEKIT High-Power, Quad, PSE Controller for Power-Over-Ethernet MAX5952 General Description The MAX5952 is a quad -48V power controller designed for use in IEEE® 802.3af-compliant/pre-IEEE 802.3at-compatible power-sourcing equipment (PSE). This device provides powered device (PD) discovery, classification, current limit, DC and AC load disconnect detections in compliance with the IEEE 802.3af standard. The MAX5952 is pin compatible with MAX5945/ LTC4258/LTC4259A PSE controllers and provides additional features. The MAX5952 features high-power mode that provides up to 45W per port. The MAX5952 provides instantaneous readout of each port current through the I2C interface. The MAX5952 also provides high-capacitance detection for legacy PDs.