Monolithic Power Systems (MPS) MP3924 Power Sourcing Equipment Controller

Monolithic Power Systems (MPS) MP3924 Power Sourcing Equipment Controller is for IEEE 802.3af/at compliant power over Ethernet (PoE) applications. The device has all the functions of IEEE 802.3af/at. This includes detection, single-event, and two-event classification, current limiting, and disconnected load detection. All of the functions can be configured to work in automatic operation mode or software program mode via the I²C.

Features

IEEE802.3af/at compliant
Quad-port and 4-bit configurable I²C address
0.25Ω current-sense resistor
Automatic mode and I²C command control mode
Automatic input over-power shutdown
Internal VCC power supply

Three-wire I²C interface for isolated applications
Two INT pins for interrupt priority selection
Disconnected DC load detection
Instantaneous current/voltage readout
Thermal protection
Available in a QFN-32 (5mm x 5mm) package

Applications

PSE switches/routers
PSE midspan power injectors
Surveillance NVR and DVRs

Monolithic Power Systems (MPS) MP3924 Power Sourcing Equipment Controller

Features

Applications

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TYPICAL APPLICATION

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