DESCRIPTION

· The TPS2383 is a Power Sourcing Equipment (PSE) controller compliant with the IEEE 802.3af Power Over Ethernet (PoE) standard. It supports a single port and is designed to manage power delivery over Ethernet cables up to 350 feet of Category 5 cable. The device integrates various features for power management, fault detection, and system control, making it suitable for PoE applications.

FEATURES

· Compliant with IEEE 802.3af PoE standard.

· Two-point 25-kΩ resistor discovery for device detection.

· Capacitive detection for non-compliant legacy loads.

· Power classification for efficient power management.

· Controlled di/dt ramp power-up and power-down for EMI reduction.

· Current management for charging powered device bulk capacitance.

· Electronic circuit breaker and fault detection for safety.

· Input undervoltage lockout (UVLO) and load overcurrent/undercurrent detection.

· 12-bit port current and voltage acquisition.

· Standard slave I2C serial interface with 5-bit serial address selectability.

· Opto-coupler compatible SDA and SCL lines for system ground isolation.

· Dual-color LED driver for port status indication.

· Hardware FAULT interrupt for immediate response to issues.

· Operates with a single +48-V supply.

APPLICATIONS

· PoE switches for network power distribution.

· Mid-span injectors for adding PoE capability to existing networks.