h1_key

• Monitor and Sequence 12 Voltage Rails
  • All Rails Sampled Every 400 µs
  • 12-bit ADC With 2.5-V, 0.5% Internal V_REF
  • 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.