Power Electronics / Power Management


Sequencer with power supply margining

14 October 2009 Power Electronics / Power Management

Texas Instruments has introduced a sequencer and system health monitor that features power supply margining and comprehensive non-volatile error logging, allowing customers to diagnose power supply failures in their systems. The UCD90120 helps reduce board space by integrating 12 rails of sequencing; monitoring capability for up to 13 channels of voltage, current or temperature; and 10 channels of power supply margining.

The IC is designed for any system requiring sequencing and monitoring of multiple power rails, including industrial, telecom infrastructure, servers and storage systems. It can detect over- and under-voltage power supply warnings and faults and respond to these faults by configuring retries, shutdown delays and slave rail shutdowns. Failures are analysed and logged via non-volatile error logging.

TI’s Fusion Digital Power Designer graphical user interface (GUI) allows the designer to configure the UCD90120 via a PMBus/I²C interface. The free, downloadable tool simplifies the development process by allowing the designer to configure all device parameters in minutes.



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