MAX6502

Low-Cost, +2.7V to +5.5V, Micropower Temperature Switches in SOT23

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


Please check latest availability status for a specific part variant.

Description

The MAX6501–MAX6504 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°C to +125°C in 10°C increments, and are accurate to ±0.5°C (typ) or ±6°C (max). These devices require no external components and typically consume 30µA supply current. Hysteresis is pin-selectable at 2°C or 10°C.

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°C to +125°C), asserting when the temperature is above the threshold. The MAX6503/MAX6504 are offered with cold-temperature thresholds (-45°C to +15°C), 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 package.
MAX6501, MAX6502, MAX6503, MAX6504: Typical Operating Circuit MAX6501, MAX6502, MAX6503, MAX6504: Typical Operating Circuit Enlarge+

Key Features

  • ±0.5°C (typical) Threshold Accuracy Over Full Temperature Range
  • No External Components Required
  • Low Cost
  • 30µA Supply Current
  • Factory-Programmed Thresholds from -45°C to +125°C in 10°C Increments
  • Open-Drain Output (MAX6501/MAX6503) Push-Pull Output (MAX6502/MAX6504)
  • Pin-Selectable 2°C or 10°C Hysteresis
  • SOT23-5 Package

Applications/Uses

  • µP Temperature Monitoring in High-Speed Computers
  • Fan Control
  • Temperature Alarms
  • Temperature Control

See parametric specs for Temperature Switches (19)


Part NumberSwitch TypeFunctionsInterfaceAccuracy
(±°C)
Temp. Thresh.
(°C)
Package/PinsBudgetary
Price
See Notes
MAX6501 LocalTemperature Switch/Temperature ComparatorLogic4
+35
+45
+55
+65
+75
+85
+95
105
115
PL. TO/7
SOT23/5
$0.76 @1k
MAX6502 
+35
+45
+55
+65
+75
+85
+95
SOT23/5
MAX6503 
-45
-35
-25
-15
-5
+5
+15
PL. TO/7
SOT23/5
MAX6504 
-45
-35
-25
-15
-5
+5
+15
SOT23/5

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX6502 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources


MAXM86146
Complete Optical Biosensing Module with Ultra-Low-Power Biometric Sensor Hub

  • Complete Biometric Sensor Hub
  • World-Class Algorithm for Wearable Applications

MAX31889
±0.25°C Accurate I2C Temperature Sensor

  • High Accuracy
  • Long Battery Life
  • Small Size

MAX31825
1-Wire® Temperature Sensor with ±1ºC Accuracy

  • 1-Wire Interface Requires Only One Port Pin for Communication
  • Unique 64-bit Serial Code Stored in an On-Board ROM
  • External Resistor Selects Address for Location Identification

MAX86916
Integrated Optical Sensor Module for Mobile Health

  • Miniature 3.5mm x 7.0mm x 1.5mm, 14-Pin Optical Module
  • Optical-Grade Glass for Long-Term Optimal and Robust Performance
  • Ultra-Low-Power Operation for Mobile Device

MAX25205
Gesture Sensor for Automotive Applications

  • Low-Cost, Flexible Gesture-Sensing Solution for Automotive Applications
  • Low-Power, Low-Cost External CPU Processes Sensor Output
  • Supports Swipe, Rotation, and Proximity Gestures

MAX86170B
Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health

  • Complete Single-Channel Optical Data Acquisition System
  • Ultra Low-Power Operation for Wearable Devices
  • Excellent Top-End Dynamic Range > 91dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)