UCD90240 - Texas Instruments

UCD90240 24-Rail PMBus Power Sequencer and System Manager

The UCD90240 is a 24-rail PMBus addressable power sequencer and system manager in a compact 9-mm × 9-mm BGA package. 1 The device provides 24 analog monitor (MON) pins to monitor power-supply voltage, current, or temperature with two 12-bit ADC engines, 24 dedicated enable (EN) pins to control power rail on/off, 24 dedicated margin pins for closed-loop marg.

Features

•1 Sequence, Monitor and Margin 24 Voltage Rails with a 9-mm × 9-mm Small Footprint
• Monitor and Respond to User-Defined Faults Including OV, UV, OC, UC, Temperature, Timeout, and GPI-Triggered Faults
• Flexible Sequence-on/off Dependencies, Delay Time, Boolean Logic, and GPIO Configuration to Support Complex Sequencing Applications
• 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 R.