Texas Instruments TPS2384

Description

The TPS2384 is a quad-port power sourcing equipment power manager (PSEPM) and is compliant to the Power-over-Ethernet (PoE) IEEE 802.3af standard. The TPS2384 operates from a single 48-V supply and over a wide temperature range (–40°C to 125°C). The integrated output eliminates two external components per port (FET and sense resistor) and will survive 100-V transients. Four individual 15-bit A/D converters are used to measure port resistance, voltage, current and die temperature making PSE solutions simple and robust. The TPS2384 comes with a comprehensive software solution to meet the most demanding applications which can serve as a core for all PoE system designs.

TheTPS2384 is available in either 64-pin PowerPAD™ down (PAP) or 64-pin PowerPAD™ up (PJD) packages.

Features

• Quad-Port Power Management With Integrated Switches and Sense Resistors
• Compliant to IEEE 802.3af Standard
• Operates from a Single 48-V Input Supply
• Individual Port 15-bit A/D
• Auto, Semi-Auto and Power Management Operating Modes
• Controlled Current Ramps for Reduced EMI and Charging of PD’s Bulk Capacitance
• I2C Clock and Oscillator Watchdog Timers
• Over-Temperature Protection
• DC and DC Modulated Disconnect
• Supports Legacy Detection for Non-Compliant PD’s
• Supports AC Disconnect
• High-Speed 400-kHz I2C Interface
• Comprehensive Power Management Software Available
• Operating Temperature Range –40°C to 125°C

Typical applications

• PSE Injectors
• Ethernet Hubs & SOHO Hubs
• Ethernet Mid-Spans
• Ethernet Enterprise Switches
• SOHO Hubs

More information

• Datasheet
• IC product information