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UCD9090A

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Stromversorgungssequenzer und Monitor für 10 Schienen mit ACPI-Unterstützung

Produktdetails

Number of supplies monitored 10 Number of sequenced outputs 10 Rating Catalog Iq (typ) (mA) 50 Operating temperature range (°C) -40 to 125
Number of supplies monitored 10 Number of sequenced outputs 10 Rating Catalog Iq (typ) (mA) 50 Operating temperature range (°C) -40 to 125
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm)
  • Monitor and sequence 10 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 26 fault detail entries)
  • Closed-loop margining for 10 rails
    • Margin output adjusts rail voltage to match user-defined margin thresholds
  • Programmable watchdog timer and system reset
  • Flexible digital I/O configuration
  • Response and monitor to GPI-triggered fault
  • Easily cascade multiple power sequencers and take coordinated fault responses
  • Pin-selected rail states
  • Cascading multiple devices
  • Multiphase PWM clock generator
    • Clock frequencies from 15.259 kHz to 125 MHz
    • Capability to configure independent clock outputs for synchronizing switch-mode power supplies
  • JTAG and I2C/SMBus/ PMBus™ interfaces
  • Monitor and sequence 10 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 26 fault detail entries)
  • Closed-loop margining for 10 rails
    • Margin output adjusts rail voltage to match user-defined margin thresholds
  • Programmable watchdog timer and system reset
  • Flexible digital I/O configuration
  • Response and monitor to GPI-triggered fault
  • Easily cascade multiple power sequencers and take coordinated fault responses
  • Pin-selected rail states
  • Cascading multiple devices
  • Multiphase PWM clock generator
    • Clock frequencies from 15.259 kHz to 125 MHz
    • Capability to configure independent clock outputs for synchronizing switch-mode power supplies
  • JTAG and I2C/SMBus/ PMBus™ interfaces

The UCD9090A is a 10-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 10 power supply voltage inputs. Twenty-three GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Ten of these pins offer PWM functionality. Using these pins, the UCD9090A offers support for margining, and general-purpose PWM functions.

Specific power states can be achieved using the Pin-Selected Rail States feature. This feature allows with the use of up to 3 GPIs to enable and disable any rail. This is useful for implementing system low-power modes and the Advanced Configuration and Power Interface (ACPI) specification that is used for hardware devices.

The TI Fusion Digital Power™ designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.

The UCD9090A is a 10-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 10 power supply voltage inputs. Twenty-three GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Ten of these pins offer PWM functionality. Using these pins, the UCD9090A offers support for margining, and general-purpose PWM functions.

Specific power states can be achieved using the Pin-Selected Rail States feature. This feature allows with the use of up to 3 GPIs to enable and disable any rail. This is useful for implementing system low-power modes and the Advanced Configuration and Power Interface (ACPI) specification that is used for hardware devices.

The TI Fusion Digital Power™ designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt UCD9090A 10-Rail Power Supply Sequencer and Monitor With ACPI Support datasheet (Rev. B) PDF | HTML 01.12.2020
Anwendungshinweis How to Interpret UCD90XXX CSV File PDF | HTML 29.05.2024
Anwendungshinweis How to Access UCD90XXX Sequencers GPIO PDF | HTML 16.06.2022
Anwendungshinweis How to Decode UCD90xxx Fault Log With PMBus (Rev. A) 07.11.2019
Anwendungshinweis Design Voltage Margining Circuit for UCD90xxx Power Sequencer and System Manager (Rev. A) 21.05.2019
Anwendungshinweis UCD90xxx Family Frequently Asked Questions and Answers (Rev. B) 12.04.2019
Benutzerhandbuch UCD90xxx Sequencer and System Health Controller PMBus™ Command Reference (Rev. G) 03.04.2019
Benutzerhandbuch UCD90xxx Sequencer Schematics Guidelines (Rev. C) PDF | HTML 24.03.2019
Anwendungshinweis UCD90160/UCD9090A PMBus Command Migrating Guide 01.03.2019
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Technischer Artikel Sequencing solutions: simple, reliable and cost-effective PDF | HTML 27.09.2017
Anwendungshinweis How to Cascade Multiple UCD90xxx Sequencers 10.08.2017
Technischer Artikel A smart solution to sequence and monitor multiple power rails in a system PDF | HTML 27.07.2017
Anwendungshinweis Improvements to UCD9090A and UCD90160A Devices 26.06.2017
Benutzerhandbuch Fusion Digital Power Designer GUI 7.0 for the UCD90xxx Sequencer 31.05.2017
Technischer Artikel Sequencing and managing multiple power rails in a system: common questions answere PDF | HTML 01.02.2017
Anwendungshinweis Monitoring Voltage, Current and Temperature Using the UCD9012x 23.03.2012
Benutzerhandbuch UCD90SEQ64EVM-650: 64-Pin Sequencer Development Board 27.12.2010

Design und Entwicklung

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