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FULL DATA SHEET (PDF, 208kB) Download   E-Mail The MAX6509/MAX6510 are fully integrated, resistor-programmable temperature switches with thresholds set by an external resistor. They require only one external resistor to set the temperature threshold within a wide -40±C to +125±C temperature range. The MAX6509 provides an open-drain output. The MAX6510 features three selectable output options: active-low, active-high, and open drain with an internal pull-up resistor. These switches operate with a +2.7V to +5.5V single supply while providing a temperature threshold accuracy of ±0.5°C (typ) or ±4.7°C (max). They typically consume 32µA supply current. Hysteresis is pin selectable to 2°C or 10°C. The MAX6509/MAX6510 are available in 5-pin and 6-pin SOT23 packages, respectively.

Key Features		Applications/Uses
±0.5°C Threshold Accuracy ±4.7°C (max) Threshold Accuracy (-40°C to +125°C) Temperature Threshold Set by a 1% External Resistor Set-Hot or Set-Cold Option Low 32µA Supply Current Open-Drain, Push-Pull Outputs; Open-Drain with Internal Pull-Up Resistor Pin-Selectable 2°C or 10°C Hysteresis SOT23 Packages		µP Temperature Monitoring in High-Speed Computers Automotive Fan Control Temperature Alarms Temperature Control

Key Specifications:  Temperature Switches
Part Number	Switch Type	Functions	Interface	Accuracy (±°C)	Temp. Thresh. (°C)	Features	Package/Pins	Price
								See Notes
MAX6509	Local	Temperature Switch/Temperature Comparator	Logic	0.5	Programmable	Pin Selectable Hysteresis Resistor Programmable	SOT/5	$0.70 @1k
MAX6510							SOT/6	$0.72 @1k
See All Temperature Switches (25)

Diagram

Typical Operating Circuit

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Document Ref.: 19-1617; Rev 2; 2003-12-16
This page last modified: 2007-06-05