Power supply management IC from TI to diagnose power supply failures

Texas Instruments has introduced 12-channel sequencer and power supply health monitor with fan control and multiphase PWM clock generator. The UCD90124 monitors power as well as heat parameters of power supplies. The UCD90124 features power supply margining and comprehensive non-volatile error logging to diagnose power supply failures in their systems.

UCD90124 can be configured via a PMBus/I2C interface bus by using TI's Fusion Digital Power Designer Graphical User Interface (GUI) software which can be downloads for free from TI's website.

Key features and benefits of the UCD90124

Sequence and monitor up to 12 power supplies while simultaneously margining up to 10 rails.
Manage power and monitor and control up to four fans with a single device.
The UCD90124 has a built-in temperature control algorithm that automatically adjusts fan speed based on five configurable temperature zones. Alternatively, designers can use their own temperature control algorithm running on an external host and communicate desired fan speed via I2C commands. This level of intelligent system thermal management helps reduce audible system noise and extend the operating life of the fans.
The auto-calibrate function automatically determines the turn on, turn off and maximum duty cycle for the fan, which allows the designer to think in terms of operating speed and also accounts for environmental variables in fan speed.
The UCD90124 can generate up to eight clocks with configurable frequencies from 15.259 kHz to 125 MHz and phase shift from 0 to 360 degrees, easing synchronization of switch-mode power supplies.

Package: VQFN-64
Availability: Now
Price: $6.45 in 1K pieces