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G7921 Datasheet Three Remote Temperature Sensors and One Fan Controllers

Manufacturer: Global Mixed-mode Technology

Download the G7921 datasheet PDF. This datasheet also includes the G7921-GlobalMixed variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (G7921-GlobalMixed-modeTechnology.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number G7921
Manufacturer Global Mixed-mode Technology
File Size 146.03 KB
Description Three Remote Temperature Sensors and One Fan Controllers
Download G7921 Download (PDF)

General Description

The G7921 contains 3 precise digital thermometers, one fan controllers, hardware and software thermal shutdown, and a system-reset circuit.

The thermometers report the temperature of 3 remote sensors.

The remote sensors are diode-connected transistors typically a low-cost, easily mounted 2N3904 NPN type or the diode built-in in CPU.

Overview

Global Mixed-mode Technology Inc.

G7921 Three Remote Temperature Sensors and One Fan Controllers with SMBus Serial Interface and System Reset.

Key Features

  • Measures Three Remote Temperatures.
  • Adjustable Offset for Each Sensor via SMBus.
  • Accuracy: ±1°C (+ 60°C to + 100°C) ±3°C (- 10°C to + 120°C).
  • +4.5V to +5.5V Supply Range.
  • Programmable Hardware Thermal Shutdown for Sensor 2 and Programmable Software Thermal Shutdown for Sensor 1, 3.
  • SMBus 2-Wire Serial Interface With Writting Protection Function.
  • Alert Signal for Diode Fault, Fan Fail, and Fan Out of Control.
  • Supports SMBu.

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