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MAX31790ATI+ The MAX31790ATI+ is a 6-channel PWM-output fan RPM controller from Analog Devices. It operates from a 3.0V to 5.5V supply and features an I2C interface for control.
Mfr Part #:

MAX31790ATI+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX31790ATI+ is a 6-channel PWM-output fan RPM controller from Analog Devices. It operates from a 3.0V to 5.5V supply and features an I2C interface for control.
✓ Total Stock: 11,665 pcs
$ Price Range: $2.25

MAX31790ATI+ 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
Romaks Technologies ✓
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11,665 pcs
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11665 pcs On Request 1 On Request On Request On Request On Request On Request
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MAX31790ATI+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
Package / Case
Supplier Device Package
Supplier Package
Supply Voltage
Technology
Voltage
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MAX31790ATI+ Description

Short technical summary and product information.

The MAX31790ATI+ is a highly integrated motor driver IC designed for controlling the speed of up to six fans. It utilizes six independent PWM outputs, with fan speeds set via an I2C interface. The device supports "4-wire" fans directly or can modulate fan power using an external pass transistor.

 

Tachometer inputs provide precise monitoring and control of fan RPM, with up to 12 inputs available. Any of the six PWM outputs can be reconfigured as tachometer inputs. The MAX31790ATI+ offers versatile startup configurations for reliable fan control at power-up and includes an I2C bus interface with timeout and watchdog features.

 

This IC is suitable for a wide range of cooling applications in servers, networking equipment, and telecommunications. It operates over a temperature range of -40°C to +125°C and is available in a 28-pin TQFN package.

 

Key electrical specifications include a supply voltage range of 3.0V to 5.5V and an I2C interface. The device is surface-mountable and designed with Power MOSFET technology.

MAX31790ATI+ Quick Information

Product Type: Motor Driver IC
Canonical Name: MAX31790ATI+ 6-Channel PWM-Output Fan RPM Controller
Subcategory: Fan Motor Driver

MAX31790ATI+ Compliance

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

MAX31790ATI+ Estimated Pricing

Qty Low High
1+ $2.25 $2.25

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

MAX31790ATI+ Features

  • Controls up to six independent fans.
  • Provides precise fan speed monitoring.
  • Features an I2C bus interface.
  • Operates from 3.0V to 5.5V supply.
  • Wide -40°C to +125°C temperature range.

MAX31790ATI+ Applications

  • Ideal for server cooling systems.
  • Used in networking equipment.
  • Suitable for telecom applications.
  • Enables precise fan RPM control.

MAX31790ATI+ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the MAX31790ATI+?

3.0V to 5.5V.

What is the package type of the MAX31790ATI+?

28-WFQFN Exposed Pad (supplier package 28-TQFN 4x4 mm).

What is the operating temperature range of the MAX31790ATI+?

-40°C to 125°C.

What interface does the MAX31790ATI+ use?

I2C.

What type of motor does the MAX31790ATI+ drive?

Brushless DC (BLDC) motors.

How many fans can the MAX31790ATI+ control?

Up to six independent fans with PWM drive.

How many tachometer inputs does the MAX31790ATI+ support?

Up to 12.

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