The EMC1152 is a one-wire sensor that is capable of monitoring up to five voltages and two temperature zones for an Intel PC platform containing an SST host. The two temperature zones consist of an internal temperature diode and an externally connected temperature diode. In cooperation with a host device, thermal management and fan control can be performed. Communication takes place over a one-wire SST based interface. The internal 11-bit delta-sigma ADC architecture provides superb linearity, high accuracy, and excellent noise immunity.

Features

  Single Wire Interface (SST based)

  SST 1.0 compliant

  Fixed Address, Discoverable Device

  Three programmable addresses

  Supports FCS Abort functionality not available in SST 0.9 compliant devices

  Resistance Error Correction

  Ideality Configuration

  Beta Compensation (EMC1152-1)

  EMC1152 configured to measure 2N3904 diode

  EMC1152-1 configured to measure CPU substrate diode

  External Temperature Monitors

  0.125°C Resolution

  ±1°C Accuracy (50°C to 70°C)

  Diode Fault Reporting

  Internal Temperature Monitor

  Range -40°C to +125°C

  0.125°C resolution

  ±2°C Accuracy (40°C to 70°C)

  Voltage Monitor

  12V, 5V, 3.3V, 2.5V, VCCP inputs

  2% Total Unadjusted Error

  11-bit resolution

  Supply

  3.0V to 3.6V

Applications

  Desktop PCs, Servers and Workstations