Features

• 3.3 Volt Operation (5 Volt Tolerant Input Buffers)
• SMBus 2.0 Compliant Interface (Fixed, Not Discoverable) with Three Slave Address Options
  • SMBus Address Change Pin
  • SMBus Address Enable Pin
• Auto-Fan Control with ProcHot Features
  • PWM (Pulse Width Modulation) Outputs (3)
  • Low Frequency and High Frequency PWM Options (15kHz up to 30kHz)
  • Fan Tachometer or Lock Rotor Inputs (4)
  • Programmable Automatic Fan Control Based on Temperature
  • Acoustic Enhancement Mode
  • ProcHot Pins Modulate Tmin
  • Fan RPM Is a Function of Up to Three Temperatures and ProcHot Signals
  • Piecewise Linear Fan Control Algorithm Option
• Temperature Monitor
  • Monitoring of Up to Five Remote Thermal Diodes (+/- 3 Deg C Accuracy)
  • Internal Ambient Temperature Measurement
  • Limit Comparison of All Monitored Values
  • Interrupt Pin for Out-of-Limit Temperature Indication
  • Configurable Offset for Internal or External Temperature Channels
• Voltage Monitor
  • Monitor Power Supplies (+1.5V, +2.5V, +5V, VCC and Two 1.5V VCCP)
  • Limit Comparison of All Monitored Values
  • Interrupt Pin for Out-of-Limit Voltage Indication
• ProcHot Input/Bi-Directional Pins (2)
  • Selectable Pins Dedicated As Input or Input/Output
  • Separate ProcHot Output Pin (FORCED_PR#)
• Power Good Output
• SMBus Alert Interrupt Output
• Register Characteristics
  • Individual Enables/Disables for Each Input
  • Two ISRs for Each Alert
• XOR Tree Test Mode
• Mechanical Package: 36-pin QFN; lead-free RoHS Compliant