MAX6660AEE+ by Analog Devices

Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus Interface


The MAX6660 is a remote temperature sensor and fan-speed regulator that provides a complete fan-control solution. The remote temperature sensor is typically a common-collector PNP, such as a substrate PNP of a microprocessor, or a diode-connected transistor, typically a low-cost, easily mounted 2N3904 NPN type or 2N3906 PNP type. The device also incorporates a closed-loop fan controller that regulates fan speed with tachometer feedback. The MAX6660 compares temperature data to a fan threshold temperature and gain setting, both programmed over the SMBus™ by the user. The result is automatic fan control that is proportional to the remote-junction temperature. The temperature feedback loop can be broken at any time for system control over the speed of the fan. Fan speed is voltage controlled as opposed to PWM controlled, greatly reducing acoustic noise and maximizing fan reliability. An on-chip power device drives fans rated up to 250mA. Temperature data is updated every 0.25s and is readable at any time over the SMBus interface. The MAX6660 is accurate to 1°C (max) when the remote junction is between +60°C to +100°C. Data is formatted as a 10-bit + sign word with 0.125°C resolution. The MAX6660 is specified for -40°C to +125°C and is available in a 16-pin QSOP package.

Where to Buy

Prices starting from US$4.82

Distributor Stock
Logo for RS
RS
from US$5.80
70
in stock
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Logo for Analog Devices
Analog Devices
from US$4.87
6,485
in stock
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Newark Electronics
from US$5.81
59
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element14
from US$5.10
59
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Farnell
from US$4.82
59
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Features

Integrated Thermal Sensing and Fan-Regulation Solution
Programmable Fan Threshold Temperature
Programmable Temperature Range for Full-Scale Fan Speed
Accurate Closed-Loop Fan-Speed Regulation
On-Chip Power Device Drives Fans Rated Up to 250mA
Programmable Under/Overtemperature Alarms
SMBus 2-Wire Serial Interface with Timeout (Cannot "Lock Up" the SMBus)
Supports SMBus Alert Response
ACPI Compatible, Including OVERT-bar System Shutdown Function
±1°C (+60°C to +100°C) Thermal-Sensing Accuracy
MAX6660EVKIT Available

Specifications

Interface 2-Wire/I2C/SMBus
Sensor Type Remote
Fan Control Linear
Accuracy (±°C) 1
Temp. Thresh. (°C) Programmable
Temp. Resolution (bits) 11
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 4.18


MAX6660AEE+ Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 1DEG C QSOP-16

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

Specifications

IC Output Type Open Drain
Sensing Accuracy Range ± 1°C
Sensing Temperature Min -40°C
Sensing Temperature Max 125°C
Sensor Case Style QSOP
No. of Pins 16Pins
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Remote-Junction Temperature-Co | Analog Devices
MAX6660AEE+, Temp & Humidity Sensors | RS
Temperature Sensor, 1Deg C, Qsop-16 | Newark Electronics
TEMPERATURE SENSOR, 1DEG C, QSOP-16 | element14

Frequently Asked Questions

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Is the MAX6660AEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX6660AEE+ have stock available?

Authorised distributors including Analog Devices, RS, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX6660AEE+ .

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