UCD90124 12 レール・シーケンサおよびシステム・ヘルス・コントローラ、ファン制御付 | TIJ.co.jp

UCD90124 (非推奨品) 12 レール・シーケンサおよびシステム・ヘルス・コントローラ、ファン制御付

 

新規設計に用いることは推奨しません (NRND)

代替製品 UCD90124A – このデバイスは、比較対象のデバイスと機能とピン配置が同一ですが、完全に同等ではありません。

TI では、この製品を新規設計に使用することはお勧めしません。これまでにご購入されたお客様をサポートするために引き続きこの製品を提供しています。

The most current UCD90xxx PMBus™ Command Reference is available at http://www.ti.com/fusiondocs

概要

The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Twelve of these pins offer PWM functionality. Using these pins, the UCD90124 offers support for fan control, margining, and general-purpose PWM functions.

Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to four independent fans.

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.

特長

  • 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
  • Fan Control and Monitoring
    • Supports Four Fans With Five User-Defined
      Speed-vs-Temperature Setpoints
    • Supports Two-, Three-, and Four-Wire Fans
  • Nonvolatile Error and Peak-Value Logging per Monitor
    (up to 10 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
  • 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
  • Internal Temperature Sensor
  • JTAG and I2C/SMBus/PMBus™ Interfaces
  • APPLICATIONS
    • Industrial / ATE
    • Telecommunications and Networking Equipment
    • Servers and Storage Systems
    • Embedded Computing
    • Any System Requiring Sequencing and Monitoring of
      Multiple Power Rails

PMBus, Fusion Digital Power are trademarks of Texas Instruments.