UCD90320 - Texas Instruments

UCD90320 Power Sequencer and System Manager

The UCD90320 device is a 32-rail PMBus™ addressable power sequencer and system manager in a compact 0.8-mm pitch BGA package. The 24 integrated ADC channels (AMONx) monitor the power supply voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for margining (MARx), 16 for lo.

Features

•1 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
  –.