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NVT224 - Remote Thermal Monitor and Fan Controller

General Description

Digital Input (Open Drain).

SMBus serial clock input.

Requires SMBus pullup.

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Key Features

  • Controls and Monitors Up to 4 Fans.
  • High and Low Frequency Fan Drive Signal.
  • 1 On.
  • Chip and 2 Remote Temperature Sensors.
  • Extended Temperature Measurement Range, Up to 191°C.
  • Automatic Fan Speed Control Mode Controls System Cooling Based on Measured Temperature.
  • Enhanced Acoustic Mode Dramatically Reduces User Perception of Changing Fan Speeds.
  • Thermal Protection Feature via THERM Output.
  • Monitors Performance Impact.

📥 Download Datasheet

Datasheet Details

Part number NVT224
Manufacturer onsemi
File Size 617.57 KB
Description Remote Thermal Monitor and Fan Controller
Datasheet download datasheet NVT224 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NVT224 dbCOOLt Remote Thermal Monitor and Fan Controller The NVT224 dbCOOL controller is a thermal monitor and multiple PWM fan controller for noise−sensitive or power−sensitive applications requiring active system cooling. The NVT224 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans so that they operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature. The effectiveness of the system’s thermal solution can be monitored using the THERM input.