EV3924-U-00A 44-57V Quad Port IEEE 802.3af/at PSE Controller Evaluation Board QFN-32

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EV3924-U-00A 44-57V Quad Port IEEE 802.3af/at PSE Controller Evaluation Board QFN-32

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MPS QFN-32 Controller Power Management Evaluation Boards

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EV3924-U-00A 44-57V Quad Port IEEE 802.3af/at PSE Controller Evaluation Board QFN-32

The MPS EV3924-U-00A is an evaluation board built around the MP3924 for bench characterisation of the device in its intended topology. It operates from a 44 V to 57 V input. The board carries the device in its QFN-32 package.

EV3924-U-00A Evaluation Board is designed to demonstrate the capability of MP3924.

Key Specifications

Part Number	EV3924-U-00A
Board For	MP3924
Board Type	Evaluation / demonstration board
Function	Quad Port IEEE 802.3af/at PSE Controller
Input Voltage	44 V to 57 V
Interface	I²C
Package	QFN-32
Ordering Codes	EV3924-U-00A

Features

44V-to-57V Input Voltage
IEEE802.3af/at Compliant PD Load
Quad Port and 4-bit Programmable I2C Address
0.25Ω Current Sense Resistor
Automatic Mode and I2C Command Control Mode
Auto Over Input Power Shutdown
Internal VCC Power Supply
3-wire I2C Interface for Isolated Application
Two INT Pins for Interrupt Priority Selection
DC Load Disconnect Detection

Evaluation Board

Design Notes

The board ships in a default configuration; check the jumper and resistor options against the user guide before applying power.
Respect the input terminal rating — most faults on evaluation boards come from an supply above the marked limit.
Test points on the switching node and output are for a short-ground probe, not for a long oscilloscope lead.
Where a GUI is supported, connect the dongle before power-up so the device enumerates on the I²C bus.