UCD90320U 32-Rail PMBus™ Power Sequencer and System Manager

1 Features

• Ultra Low Alpha(ULA) Mold Compound to reduce soft errors caused by alpha particles
• Single Event Upset (SEU) Detection
• Sequence, Monitor, and Margin 24 Voltage Rails Plus 8 Digital Rails
• Monitor and Respond to OV, UV, OC, UC, Temperature, Time-Out, and GPI-Triggered Faults
• Flexible Sequence-On and Off Dependencies, Delay Time, Boolean Logic, and GPIO Configuration to Support Complex Sequencing Applications
• Four Rail Profiles for Adaptive Voltage Identification (AVID) Voltage Regulator
• High-Accuracy Closed-Loop Margining
• Active Trim Function Improves Rail Output Voltage Accuracy
• Advanced Nonvolatile Event Logging To Assist System Debugging
  • Single-Event Fault Log (100 entries)
  • Peak Value Log
  • Black Box Fault Log to Save Status of All Rails and I/O Pins at the First Fault
• Easily Cascade Up to 4 Power Sequencers and Take Coordinated Fault Responses
• Programmable Watchdog Timer and System Reset