Texas Instruments TMP126-Q1 SPI Temperature Sensor is a 0.25°C accuracy digital temperature that supports an ambient temperature range of –55°C to 175°C. The TMP126-Q1 features a 14-bit signed temperature resolution (0.03125°C per LSB) while operating over a supply range of 1.62V to 5.5V. With a fast conversion rate, low supply current, and a simple 3-wire SPI compatible interface, the TMP126-Q1 is designed for a wide range of applications.

The Texas Instruments TMP126-Q1 includes additional advanced features for increased reliability in harsh environments, such as an optional CRC checksum for data integrity, programmable alert limits, a temperature slew rate warning, and an enhanced operational temperature range. The device utilizes a NIST traceable factory calibration for guaranteed accuracy and comes in a small SOT package for close placement to heat sources and fast response times.

FEATURES

AEC-Q100 qualified for automotive applications
- Device temperature grade-0 (–55 °C to 175 °C ambient operating temperature)
- Device HBM classification level 2
- Device CDM classification level C2b
Function Safety Capable
- Documentation available to aid functional safety system design
High accuracy
- ±0.25°C (maximum) from 20°C to 30°C
- ±0.3°C (maximum) from –20°C to 85°C
- ±0.4°C (maximum) from –40°C to 125°C
- ±0.5°C (maximum) from -55°C to 150°C
- ±0.75°C (maximum) from 150°C to 175°C

Fast measurement intervals with no self-heating concerns
Supply range: 1.62V to 5.5V
Factory-calibrated
- NIST traceability
Low power consumption
Programmable temperature alert limits
Temperature slew rate warning
Optional Cyclic Redundancy Check (CRC)
3-wire SPI interface

APPLICATIONS

Transmission control units
On-Board Chargers (OBC)
Brake systems
Traction inverters

Vehicle Control Units (VCU)
DC/DC converters
Power Distribution Units (PDU)
Powertrain exhaust sensors

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