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SOT Temperature Sensor with Multidrop
Single-Wire Digital Interface
MAX6575L/H
General Description
Features
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 microproces
sor (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 sub-
sequent pulse delays reported from the devices. Different
sensors on the same I/O line use different timeout multi-
pliers to avoid overlapping signals.
● 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
Ordering Information
The MAX6575L/H features eight different timeout multipli-
ers; 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.
PIN-
SOT
PART
TEMP.RANGE
PACKAGE TOP MARK
MAX6575LZUT -40°C to +125°C 6 SOT23
MAX6575HZUT -40°C to +125°C 6 SOT23
AABG
AABH
Selector Guide
Applications
TIMEOUT MULTIPLIERS
(µs/°K)
● Critical μP and μC Temperature Monitoring
● Portable Battery-Powered Equipment
● Cell Phones
PART
MAX6575L
MAX6575H
5, 20, 40, 80
● Battery Packs
160, 320, 480, 640
● Hard Drives/Tape Drives
● Networking and Telecom Equipment
● Medical Equipment
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
+2.7V TO +5.5V
V
CC
0.1µF
0.1µF
V
V
DD
DD
0.1µF
MAX6575L
MAX6575H
TS1
TS0
TS1
TS0
CHIP #1
CHIP #8
V
CC
10kΩ
GND
GND
I/O
I/O
µP
I/O
GND
19-1485; Rev 2; 1/21
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2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.
One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 © 2021 Analog Devices, Inc. All rights reserved.
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