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MAX6689

7-Channel Precision Temperature Monitor

Industry's Smallest 7-Channel Temperature Monitors Accurately Read Temperatures at Multiple Locations and Feature Software and Hardware Standby Modes

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX6689 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to six external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1, 4, 5, and 6 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, active-low OVERT and active-low ALERT, assert corresponding to these bits in the status register.

The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds.

The MAX6689 is specified for an operating temperature range of -40°C to +125°C and is available in 20-pin QSOP and TSSOP packages.

Data Sheet

Download	Rev 1	(PDF, 248kB)
E-Mail

Key Features

Six Thermal-Diode Inputs
Local Temperature Sensor
1°C Remote Temperature Accuracy (+60°C to +100°C)
Temperature Monitoring Begins at POR for Fail-Safe System Protection
Active-Low ALERT and Active-Low OVERT Outputs for Interrupts, Throttling, and Shutdown
Active-Low STBY Input for Hardware Standby Mode
Small, 20-Pin QSOP and TSSOP Packages
2-Wire SMBus Interface

Applications/Uses

Desktop Computers
Notebook Computers
Servers
Workstations

Key Specifications:

Temperature Sensors

Part Number

Sensor Type

Alarm Output

Functions

Interface

Remote Chan.

Accuracy
(±°C)

Parasite Pwr.

Temp. Thresh.

Temp. Resolution
(bits)

Oper. Temp.
(°C)

Smallest Available Pckg.
(mm²)

Budgetary Price

max w/pins

See Notes

MAX6689

Remote

Alert

Overt

Dual Temperature Alarms

Multi-Channel Temperature Monitor

Remote & Local Sensor

2-Wire/I²C/SMBus

Six

Programmable

-40 to +125

45.2

$3.76 @1k

See All Temperature Sensors (103)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

Application Notes

Application Note 1057		Compensating for Ideality Factor and Series Resistance Differences between Thermal-Sense Diodes
Tutorial 4679		Thermal Management Handbook

Product Guides

Thermal Management (PDF)

Reliability Reports

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Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6689UP34+			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6689UP34+T			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6689UP9A+			Active	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6689UP9A+T			Active	TSSOP; Land Pattern: Not Available	-40°C to +125°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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More Information

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[ 2006-08-25 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0567 Rev 1; 2007-09-25
This page last modified: 2010-05-21