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MAX6575H, MAX6575L

SOT Temperature Sensor with Multidrop Single Wire Digital Interface

SOT23 Single-Wire Digital Temperature Sensors

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

  • Simple Single-Wire Interface to µP or µC
  • Multidrop up to Eight Sensors on One Wire
  • ±0.8°C Accuracy at +25°C (±3°C max)
  • Operates from +2.7V to +5.5V Supply Voltage
  • Low 150µA (typ) Supply Current
  • Standard Operating Temperature Range -40°C to +125°C
  • Small 6-Pin SOT23 Package

Applications/Uses

  • Battery Packs
  • Cell Phones
  • Critical µP and µC Monitoring
  • Hard Drives/Tape Drives
  • Medical Equipment
  • Networking and Telecom Equipment
  • Portable Battery-Powered Equipment

Description

The MAX6575L/H is a low-cost, low-current temperature sensor with a single-wire digital interface. It features accuracy of ±3°C at +25°C, ±4.5°C at +85°C, and ±5°C at +125°C. The MAX6575L/H is a monostable, externally triggered temperature sensor that allows a microprocessor (µP) to interface with up to eight temperature sensors using a single control line. Temperatures are sensed by measuring the time delay between the falling edge of the external triggering pulse and the falling edge of the subsequent pulse delays reported from the devices. Different sensors on the same I/O line use different timeout multipliers to avoid overlapping signals.

The MAX6575L/H features eight different timeout multipliers; these are selectable by using the two time-select pins on each device and choosing the "L" or "H" version. The "L" version provides four delay ranges less than 50ms. The "H" version provides four delay ranges greater than 50ms. The MAX6575L/H is available in a space-saving 6-pin SOT23 package.

Simplified Block Diagram

MAX6575H, MAX6575L: Typical Operating Circuit MAX6575H, MAX6575L: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .