General 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.

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