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ADM1034 - Thermal Monitor and Fan Speed (RPM) Controller

General Description

DRIVE1 Pin Drives Fan 1.

Open-drain output.

Requires a pullup resistor.

Key Features

  • 1 Local and 2 Remote Temperature Channels.
  • 1C Accuracy on Local and Remote Channels.
  • Automatic Remote Temperature Channels, Up to 1 kW.
  • Fast (Up to 64 Measurements per Second).
  • SMBus 2.0, 1.1, and 1.0 Compliant.
  • SMBus Address Input/.

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Datasheet Details

Part number ADM1034
Manufacturer onsemi
File Size 419.67 KB
Description Thermal Monitor and Fan Speed (RPM) Controller
Datasheet download datasheet ADM1034 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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ADM1034 Thermal Monitor and Fan Speed (RPM) Controller The ADM1034 is a dual-channel remote- and local-temperature sensor and fan controller. The remote channels monitor the temperature of two remote thermal diodes, which may be discrete 2N3904/6s or may be located on a microprocessor die. The device also monitors its own ambient temperature. The ADM1034 can monitor and control the speed of two cooling fans. The user can program a target fan speed, or else use the look-up table to input a temperature-to-fan speed profile. The look-up table can be configured to run the fans at discrete speeds (discrete mode) or to ramp the fan speed with temperature (linear mode). The ADM1034 communicates over a 2-wire SMBus 2.0 interface.