TPS2383APMR

The Texas Instruments TPS2383APMR is an 8-channel Power Over Ethernet (PoE) controller designed for Power Sourcing Equipment (PSE) applications. This device supports the IEEE 802.3af standard, offering features such as two-point 25-kΩ resistor discovery and capacitive detection for legacy loads. It provides power classification capabilities and controlled di/dt ramp power-up/down for EMI reduction.

Key electrical features include a voltage range of 44V to 57V, a current draw of 5mA, and a power rating of 15.4W. The controller integrates an electronic circuit breaker, fault detection, and input undervoltage lockout (UVLO). It also offers load overcurrent and undercurrent detection, along with 12-bit port current and voltage acquisition.

Communication is handled via a standard slave I2C serial interface with 5-bit serial address selectability. The TPS2383APMR supports discovery and classification bypass modes selectable via register. For system ground isolation, it features opto-coupler compatible SDA and SCL lines. Additionally, it includes a dual-color LED driver for port status indication and a hardware FAULT interrupt.

This component is supplied in a 64-LQFP (10x10) package and is designed for surface mount applications. It operates within an ambient temperature range of -40°C to 85°C.