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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 152kB) Download   E-Mail

Description

The MAX6576/MAX6577 are low-cost, low-current temperature sensors with a single-wire output. The MAX6576 converts the ambient temperature into a square wave with a period proportional to absolute temperature (°K). The MAX6577 converts the ambient temperature into a square wave with a frequency proportional to absolute temperature. The MAX6576 offers accuracy of ±3°C at +25°C, ±4.5°C at +85°C, and ±5°C at +125°C. The MAX6577 offers accuracy of ±3°C at +25°C, ±3.5°C at +85°C, and ±4.5°C at +125°C. Both devices feature a single-wire output that minimizes the number of pins necessary to interface with a microprocessor. The period/frequency range of the output square wave can be selected by hard-wiring the two time-select pins (TS0, TS1) to either VDD or GND. The MAX6576/MAX6577 are available in space-saving 6-pin SOT23 packages.

Key Features		Applications/Uses
Simple Single-Wire Output Two Output Types Available Temperature to Period (µs) (MAX6576) Temperature to Frequency (Hz) (MAX6577) ±0.8°C Accuracy at +25°C (±3°C max) No External Components Operates from +2.7V to +5.5V Supply Voltage Low 140µA Typical Supply Current Standard Operating Temperature Range: -40°C to +125°C Small 6-Pin SOT23 Package		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

Diagram

Typical Operating Circuit

Application Notes

Application Note 685: How to Simplify the Interface between Microcontroller and Temperature Sensor - MAX6576, MAX6577 Application Note 694: Temperature Sensor ICs Simplify Designs - MAX6576, MAX6577 Application Note 1075: Simplify Isolated Temperature Sensing With Single Wire Sensors - MAX6576, MAX6577 Application Note 1754: Portable Temperature Monitoring Demystified - MAX6576 Application Note 3424: RS-232 Powered Temperature Sensor - MAX6576 Application Note 3457: IR-Linked Temperature Sensor - MAX6576 Application Note 3872: Telecomm Supply Powers Temperature Sensor - MAX6576 Application Note 4432: Isolated Temperature Sensor - MAX6576

Design Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report: MAX6577.pdf Show FIT data for: MAX6576 MAX6577 Request Reliability Report for: MAX6576

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-6 of 6

MAX6576	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6576ZUT+			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6576ZUT-T			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6576ZUT+T			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6577	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6577ZUT+			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6577ZUT-T			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6577ZUT+T			Active	SOT;6 pin;9 mm² Outline Drawing: 21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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: MAX6576 MAX6577 New Product Press Release 1999-05-20  Temperature Family by Product Type

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