MAX6639AEE+T by Analog Devices

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

Status: Active
Series: MAX6639, MAX6639F
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX6639 monitors its own temperature and one external diode-connected transistor or the temperatures of two external diode-connected transistors, typically available in CPUs, FPGAs, or GPUs. The 2-wire serial interface accepts standard System Management Bus (SMBus) write byte, read byte, send byte, and receive byte commands to read the temperature data and program the alarm thresholds. Temperature data can be read at any time over the SMBus, and three programmable alarm outputs can be used to generate interrupts, throttle signals, or overtemperature shutdown signals. The temperature data is also used by the internal dual-PWM fan-speed controller to adjust the speed of up to two cooling fans, thereby minimizing noise when the system is running cool, but providing maximum cooling when power dissipation increases. Speed control is accomplished by tachometer feedback from the fan, so that the speed of the fan is controlled, not just the PWM duty cycle. Accuracy of speed measurement is ±4%. The MAX6639 is available in 16-pin QSOP and 16-pin thin QFN 5mm x 5mm packages. It operates from 3.0V to 3.6V and consumes just 500µA of supply current.

Prices starting from US$3.27


Distributor Starting From Stock
Logo for element14 element14 US$3.27
-
Buy Now
View Full Pricing & Stock Comparison

Features

Two Thermal-Diode Inputs
Up to 25kHz PWM Output Frequency
Three Selectable SMBus Addresses
Local Temperature Sensor
1°C Remote Temperature Accuracy
Two PWM Outputs for Fan Drive (Open Drain; Can be Pulled Up to +13.5V)
Programmable Fan-Control Characteristics
Automatic Fan Spin-Up Ensures Fan Start
Controlled Rate-of-Change Ensures Unobtrusive Fan-Speed Adjustments
±3% Fan-Speed Measurement Accuracy
Temperature Monitoring Begins at POR for Fail-Safe System Protection
Active-Low OT and Active-Low THERM Outputs for Throttling or Shutdown
Measures Temperatures Up to +150°C
MAX6639F is Optimized for n = 1.021 for Penryn Compatibility

Specifications

Fan Controller Functions Remote & Local Sensor
Interface 2-Wire/I2C/SMBus
Sensor Type Remote
Fan Control PWM
Accuracy (±°C) 1
Temp. Thresh. (°C) Programmable
Package/Pins QSOP/16TQFN/16
BudgetaryPrice (See Notes) 1.95


MAX6639AEE+T Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 1DEG C QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Open Drain
Sensing Accuracy Range ± 1°C
Sensing Temperature Min 0°C
Sensing Temperature Max 150°C
Sensor Case Style QSOP
No. of Pins 16Pins
Supply Voltage Min 3V
Supply Voltage Max 3.6V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

TEMPERATURE SENSOR, 1DEG C, QSOP-16 | Farnell

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX6639AEE+T ?

Additional datasheets, footprints and schematics for MAX6639AEE+T are listed on our Part Details page. You can also find images and similar parts to MAX6639AEE+T on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX6639AEE+T on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX6639AEE+T price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX6639AEE+T you can contact the distributor directly for product support, shipping queries etc.

Is the MAX6639AEE+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX6639AEE+T have stock available?

Authorised distributors including element14 and Farnell have stock available or on a lead time for MAX6639AEE+T .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX6639AEE+T often in real-time on the comparison pages.

What if I can't find stock of MAX6639AEE+T ?

You can fill out our help required form which you can use to request a quote for MAX6639AEE+T from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay