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MAX6575H, MAX6575L

SOT Temperature Sensor with Multidrop Single Wire Digital Interface

SOT23 Single-Wire Digital Temperature Sensors

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Active: In Production.

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 192kB)
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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

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

Key Specifications:

Temperature Sensors
Part Number Sensor Type Interface Accuracy
(±°C)
Parasite Pwr. Multi Droppable Oper. Temp.
(°C)
Smallest Available Pckg.
(mm2)
Budgetary Price
max w/pins See Notes
MAX6575  Local Pulse Delay 3 No Yes -55 to +125 9 $0.82 @1k
See All Temperature Sensors (104)
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

MAX6575H, MAX6575L: Typical Operating Circuit
Typical Operating Circuit

Notes and Comments

Multidrop single-wire interface - up to 8 sensors on one wire (MAX6575)
Single-wire interface - squarewave period proportional to temperature (MAX6576)
Single-wire interface - squarewave frequency proportional to temperature (MAX6577)

More Information

Topmark Coding MAX6575
New Product Press Release 1999-05-14 ]
Temperature Family by Product Type

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Information Index

Document Ref.: 19-1485 Rev 0; 1999-04-01
This page last modified: 2007-06-04




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