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ADT7490ARQZ-R7 The ON Semiconductor ADT7490ARQZ-R7 is a thermal management IC designed for active system cooling. It offers precise temperature monitoring and fan speed control capabilities.
Mfr Part #:

ADT7490ARQZ-R7

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor ADT7490ARQZ-R7 is a thermal management IC designed for active system cooling. It offers precise temperature monitoring and fan speed control capabilities.
✓ Total Stock: 42 pcs
$ Price Range: $2.06

ADT7490ARQZ-R7 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
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42 pcs
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42 pcs On Request 1 On Request On Request On Request On Request On Request
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ADT7490ARQZ-R7 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Function
Mounting Type
Operating Temperature
Output Alarm
Output Fan
Output Type
Sensing Temperature
Sensor Type
Supplier Device Package
Tape & Reel
Topology
Voltage
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ADT7490ARQZ-R7 Description

Short technical summary and product information.

The ADT7490ARQZ-R7 from ON Semiconductor is an integrated circuit designed for thermal monitoring and fan control in noise-sensitive or power-sensitive applications. It features a local on-chip temperature sensor and supports remote temperature sensors with series resistance cancellation. The device monitors CPU temperature via a PECI interface and can control up to four fans using PWM outputs, operating them at the lowest possible speed for reduced acoustic noise.

 

Key specifications include an operating temperature range of -40°C to 125°C and a supply voltage range of 3V to 3.6V. The ADT7490ARQZ-R7 provides an SMBus output and has an accuracy of ±1.5°C. It supports both internal and external sensors and includes features like automatic fan speed control based on thermal information and bidirectional THERM/SMBALERT pin functionality for thermal protection.

 

This IC is housed in a 24-QSOP package and is designed for surface mounting. Its functionality extends to GPIO capabilities and IMON monitoring for CPU current and power information, making it suitable for applications in personal computers and servers.

ADT7490ARQZ-R7 Quick Information

Product Type: Thermal Management IC
Series: ADT7490
Canonical Name: ADT7490ARQZ-R7 Thermal Monitor and Fan Controller
Subcategory: PMIC - Thermal Management

ADT7490ARQZ-R7 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ADT7490ARQZ-R7 Estimated Pricing

Qty Low High
1+ $2.06 $2.06

Estimated market price range - modelled values for guidance only, not live distributor offers.

ADT7490ARQZ-R7 Features

  • Monitors local and remote temperatures.
  • Controls up to four fans via PWM.
  • Operates from 3V to 3.6V supply.
  • Wide -40°C to 125°C temperature range.
  • SMBus interface for communication.

ADT7490ARQZ-R7 Applications

  • Ideal for PC thermal management.
  • Suitable for server cooling systems.
  • Enables noise-sensitive applications.
  • Supports power-sensitive designs.

ADT7490ARQZ-R7 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the ADT7490ARQZ-R7?

-40°C to 125°C.

What is the supply voltage range for the ADT7490ARQZ-R7?

3V to 3.6V.

What package is the ADT7490ARQZ-R7 available in?

24-QSOP surface mount package (also specified as 24-SSOP, 0.154" width, 3.90mm body width).

What is the accuracy of the temperature sensor?

±1.5°C maximum.

What output interface does the ADT7490ARQZ-R7 use?

SMBus.

Does the ADT7490ARQZ-R7 support external temperature sensing?

Yes, it supports both internal and external temperature sensors.

What is the primary function of the ADT7490ARQZ-R7?

Fan control and temperature monitoring.

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