MAX6501, MAX6502, MAX6503, MAX6504 Low-Cost, +2.7V to +5.5V, Micropower Temperature Switches in SOT23 and TO-220

Industry's Simplest Temperature Detectors - Easy to Use, Low Cost, No External Components Required!

Description

FULL DATA SHEET (PDF, 368kB) Download   E-Mail The MAX6501¨CMAX6504† low-cost, fully integrated temperature switches assert a logic signal when their die temperature crosses a factory-programmed threshold. Operating from a +2.7V to +5.5V supply, these devices feature two on-chip, temperature-dependent voltage references and a comparator. They are available with factory-trimmed temperature trip thresholds from -45¡ãC to +125¡ãC in 10¡ãC increments, and are accurate to ¡À0.5¡ãC (typ) or ¡À6¡ãC (max). These devices require no external components and typically consume 30µA supply current. Hysteresis is pin-selectable at +2¡ãC or +10¡ãC. The MAX6501/MAX6503 have an active-low, open-drain output intended to interface with a microprocessor (µP) reset input. The MAX6502/MAX6504 have an active-high, push-pull output intended to directly drive fan-control logic. The MAX6501/MAX6502 are offered with hot-temperature thresholds (+35¡ãC to +125¡ãC), asserting when the temperature is above the threshold. The MAX6503/MAX6504 are offered with cold-temperature thresholds (-45¡ãC to +15¡ãC), asserting when the temperature is below the threshold. The MAX6501-MAX6504 are offered in eight standard temperature versions; contact the factory for pricing and availability of nonstandard temperature versions. They are available in 5-pin SOT23 and 7-pin TO-220 packages.

Key Features		Applications/Uses
¡À0.5¡ãC (typical) Threshold Accuracy Over Full Temperature Range No External Components Required Low Cost 30µA Supply Current Factory-Programmed Thresholds from -45¡ãC to +125¡ãC in 10¡ãC Increments Open-Drain Output (MAX6501/MAX6503) Push-Pull Output (MAX6502/MAX6504) Pin-Selectable +2¡ãC or +10¡ãC Hysteresis SOT23-5 and TO220-7 Packages		µP Temperature Monitoring in High-Speed Computers Fan Control Temperature Alarms Temperature Control

 

Key Specifications:  Temperature Switches
Part Number	Switch Type	Functions	Interface	Accuracy (¡À¡ãC)	Temp. Thresh. (¡ãC)	Features	Package/Pins	Price
								See Notes
MAX6501	Local	Temperature Switch/Temperature Comparator	Logic	0.5	+45 +55 +65 +75 +85 +95	Pin Selectable Hysteresis	SOT/5	$0.67 @1k
MAX6502					+45 +55 +65 +75 +85 +95		SOT/5	$0.67 @1k
MAX6503					-15 +5		SOT/5	$0.67 @1k
MAX6504					-15 +5		SOT/5	$0.67 @1k
See All Temperature Switches (25)

No External Components, ¡À0.5¡ãC (typ) Accuracy, Pin Selectable Hysteresis †Patents Pending

Diagram

Typical Operating Circuit

source£ºShenZhen henlito electronic co.,ltd.

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