1 Features

• 1-Wire® interface with multi-drop shared bus and

cyclic redundancy check (CRC)

• Bus powered with operating voltage: 1.7 V to 5.5 V

• IEC 61000-4-2 ESD for 8-kV contact discharge

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• High-accuracy digital temperature sensor (WSON

package)

– ±0.2°C (maximum) from +10°C to +45°C

– ±0.3°C (maximum) from –40°C to +105°C

– ±0.4°C (maximum) from –55°C to +150°C

• High-accuracy digital temperature sensor (VSSOP

package)

– ±0.3°C (maximum) from –20°C to +85°C

– ±0.5°C (maximum) from –55°C to +150°C

• Temperature measurement current: 94 μA

• Shutdown current: 1.3 μA

• 16-bit temperature resolution: 7.8125 m°C (1 LSB)

• Fast data rates of 90 kbps in overdrive speed

• Flexible user programmable short address modes

for faster device address

• 2Kb EEPROM features:

– Write operation in 64-bit block size

– Continuous read mode

– Read with write protection with 256-bit page

size

– Programming current: 178 μA

• NIST traceable factory-programmed non erasable

64-bit identification number for device addressing

• Four configurable open-drain digital input-output

and temperature alert

2 Applications

• Factory automation and control

• Appliances

• Medical accessories

• CPAP machines

• Battery charger ICs

• EV charging infrastructure

• LED lighting

• Temperature transmitters

• Cold chain

3 Description

The TMP1826 is a high-accuracy, 1-Wire compatible

digital output temperature sensor with integrated 2Kb

EEPROM and a wide operating temperature range

from –55°C to +150°C. The TMP1826 provides a

high accuracy of ±0.1°C (typical)/±0.2°C (maximum)

across the temperature range of +10°C to +45°C.

Each device comes with a factory programmed 64-bit

unique identification number for addressing and NIST

traceability. The TMP1826 supports both standard

speed for legacy application and overdrive mode

with 90-kbps data rate for low latency communication

across a wide voltage range of 1.7 V to 5.5 V.

In the simplest mode of operation, the TMP1826 1-

Wire interface, with an integrated 8-kV IEC-61000-4-2

ESD protection on the data pin, requires only a single

connection and a ground return in bus powered mode,

which simplifies and reduces cost by reducing the

number of wires and external protection components.

Additionally, there is the VDD power pin also available

for applications that may want to have a dedicated

power supply.