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SNIU040 – November 2019
Copyright © 2019, Texas Instruments Incorporated
TMP392EVM User's Guide
User's Guide
SNIU040 – November 2019
TMP392EVM User's Guide
The TMP392 is an ultra-low power, dual-trip, dual-output, resistor-programmable temperature switch. This
device enables thermal protection and thermal event monitoring over a wide temperature range. The
TMP392 offers independent dual overtemperature (hot and warm) detection in the temperature range from
+30°C to +124°C with ±3.0°C trip accuracy. The Texas Instruments TMP392EVM (Evaluation Module) is
easy to use and can evaluate the performance of the TMP392 right out of the box. The EVM has pre-
populated resistors corresponding to a hot and warm trip point with 5°C hysteresis, and LED indicators at
the outputs of the device. The trip test function is available through the use of onboard push buttons to
test the output of both channels. The sensor is also located on a perforated portion of the PCB that can be
separated from the main board for prototyping. The TMP392EVM does not require any calibration or
software programming, as the trip points are programmed through two resistors. This document provides
detailed information about the device operation and evaluation board features.
Figure 1. TMP392 Evaluation Board