UCD90120A Datasheet 12-rail Power-supply Sequencer/monitor

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design UCD90120A SLVSAN9C – APRIL 2011 – REVISED MARCH 2019 UCD90120A 12-Rail Power Supply Sequencer and Monitor With ACPI.

Datasheet Details

Part number	UCD90120A
Manufacturer	Texas Instruments
File Size	2.46 MB
Description	12-Rail Power-Supply Sequencer/Monitor
Datasheet	UCD90120A-etcTI.pdf

General Description

The UCD90120A is a 12-rail PMBus/I2C addressable power-supply sequencer and monitor.

The device integrates a 12-bit ADC for monitoring up to 12 power-supply voltage inputs.

Twenty-six GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions.

Key Features

1 Monitor and Sequence 12 Voltage Rails.
All Rails Sampled Every 400 μs.
12-bit ADC With 2.5-V, 0.5% Internal VREF.
Sequence Based on Time, Rail and Pin Dependencies.
Four Programmable Undervoltage and Overvoltage Thresholds per Monitor.
Nonvolatile Error and Peak-Value Logging per Monitor (up to 12 Fault Detail Entries).
Closed-Loop Margining for 10 Rails.
Margin Output Adjusts Rail Voltage to Match User-Defined Margin Thre.

UCD90120A Distributor

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