Texas Instruments introduced a eight-channel sequencer and monitor with non-volatile error logging.The device supports the latest generation microprocessors, ASICs and DSPs. The sequencer operates from a 3.3-V supply and does not require external memory or a clock. The UCD9081 allows the designer to constantly monitor the health of the power supply system and manage the power supply rails. The device’s non-volatile error logging stores any system failure to FLASH.

The UCD9081 independently monitors eight voltage rails with 3.5-mV resolution. The programmable under- and over-voltage thresholds help protect high-value loads from damage. In addition, the flexible rail startup and shutdown sequence and fault response options add further system and load protection. The UCD9081 also provides up to four additional general-purpose outputs for other board-level functions such as power good or reset signals.

TI’s Graphical User Interface (GUI) allows the designer to configure the UCD9081 via an I2C interface. The tool is free and downloadable. Configurable device features include under- and over-voltage threshold limits, selectable fault response for each rail; supply voltage sequencing; and monitoring conditions.

The UCD9081 is available from TI and its authorized distributors in a 32-pin QFN package. Suggested resale pricing in 1,000-unit quantities is $3.20.