• Texas Instruments (India) Private Limited

Power Sourcing Equipments

Texas Instruments offers a Power Sourcing Equipment, TPS23841. It is a quad-port ethernet sourcing equipment manager with a wide range of voltage & high-power. It provides current up to 570 mA per port over a wide temperature range (-40?C to +125?C). Each port may operate from 21.5 V to 57 V. Each port has the integrated output that eliminates two external components (MOSFET and sense resistor) and survives 100V transients. Four individual 15-bit A/D converters are used to measure signature resistance, voltage, current and die temperature, resulting in a simple and robust PSE solution. It comes with a comprehensive software solution to meet the most demanding applications which can serve as a core for all PoE (Power over Ethernet) system designs. Features: high power PoE up to 25 W at PD input operating from a 53V minimum input power rail, available with integrated switches and sense resistors, wide range single supply: 21.5 V up to 57 V, ICUT is 615 mA, ILIM is 650 mA nominal, IEEE 802.3af compatible, individual port 15-bit A/D converters, auto, semi-auto and power management modes, controlled current ramp power-up/down for EMI reduction, over-temperature protection, DC disconnect detection, supports ac disconnect, high-speed 400-kHz I2C interface, supports legacy PD detection, power PAD? package, comprehensive power management software and available for MPS430 microcontroller. Applications: medical/industrial applications at 24 V, high power ethernet enterprise switches, SOHO hubs, ethernet hubs, ethernet high power mid-spans and high power PSE injectors.