UCD90320ZWST

The UCD90320ZWST from Texas Instruments is an advanced 32-Rail PMBus Power Sequencer and System Manager designed for complex power management applications. This component allows for the sequencing, monitoring, and margining of up to 32 voltage rails, including 24 voltage rails and 8 digital rails.

Key features include monitoring for overvoltage (OV), undervoltage (UV), overcurrent (OC), undercurrent (UC), temperature, time-out, and GPIO-triggered faults. It offers flexible sequence-on and off dependencies, delay times, Boolean logic, and GPIO configuration to support intricate sequencing requirements. The device also supports four rail profiles for adaptive voltage identification (AVID) and high-accuracy closed-loop margining.

Designed for robust system health management, the UCD90320ZWST includes advanced nonvolatile event logging, a single-event fault log with 100 entries, and a peak value log. It also features a black box fault log to capture the status of all rails and I/O pins at the first fault. The device is PMBus 1.2 compliant and can be cascaded with up to four other power sequencers for coordinated fault responses. It is housed in a 169-NFBGA (12x12 mm) package and supports surface mount.

With its comprehensive monitoring and sequencing capabilities, the UCD90320ZWST is suitable for applications requiring precise control and management of multiple power rails, aiding in system debugging and ensuring operational stability.