MAX6645ABFAUB+

$5.14

Description：IC CNTRLR FAN SPEED 10-UMAX
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube

SKU:99ef7e04f6b2 Category: Thermal Management Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

MAX6645ABFAUB+ is listed in the Thermal Management range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC CNTRLR FAN SPEED 10-UMAX. Review the specifications below when checking this part for your BOM.

Thermal Management specifications for MAX6645ABFAUB+

Description：IC CNTRLR FAN SPEED 10-UMAX
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Function：Fan Control, Temp Monitor
Sensor Type：Internal and External
Sensing Temperature：-40°C ~ 125°C, External Sensor
Accuracy：±3.5°C Local(Max), ±3°C Remote(Max)
Topology：ADC, PWM Generator, Tach Counter
Output Type：PWM
Output Alarm：Yes
Output Fan：Yes
Voltage - Supply：3V ~ 5.5V
Operating Temperature：-40°C ~ 125°C
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package：10-uMAX/uSOP

Thermal Management datasheet and documents for MAX6645ABFAUB+

MAX6645ABFAUB+

Thermal Management Overview

The MAX6645ABFAUB+ is an automatic PWM fan-speed controller with over-temperature output. It operates from a 3.0V to 5.5V supply and consumes 500µA typical current. The device measures temperatures of one or two external diode-connected transistors and adjusts the PWM duty cycle to control fan speed. It features a 32Hz PWM output, FANFAIL alarm, and OT output. Operating temperature range is -40°C to +125°C. Package is 10-pin µMAX.

Thermal Management Feature Summary

Automatic PWM fan-speed control based on remote temperature sensing
Over-temperature output for system warning or shutdown
Fan-fail detection via tachometer, locked-rotor, or current sensing
Factory-programmed low-temperature fan threshold

Thermal Management Applications

Networking equipment
Storage equipment
Servers
Desktop computers
Workstations

Thermal Management Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to confirm package type and factory programming options. Confirm availability status as distribution channels may vary. Ensure compatibility with existing thermal management designs by checking pin configurations and electrical specifications in the latest datasheet revision.

Thermal Management Selection Notes

Select this component when factory-set thresholds are preferred over pin-selectable ones. It supports monitoring up to two external diode-connected transistors for accurate thermal management. The 10-pin µMAX package offers a compact solution for space-constrained applications requiring automatic fan speed adjustment and failure detection capabilities.

Thermal Management Part Context

Part of the MAX6643/MAX6644/MAX6645 family of automatic PWM fan-speed controllers. Unlike the MAX6643 and MAX6644 which offer pin-selectable thresholds, the MAX6645 has factory-programmed thresholds. All devices share similar functionality including remote temperature sensing, PWM output generation, and fan-fail detection mechanisms.