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Product details

Parameters

SetPoint type Resistor Programmable SetPoint value (deg C) +30 to 124 Operating temperature range (C) -55 to 130 Accuracy over temp range (Max) (C) 1.5 Output type Open Drain Supply voltage (Min) (V) 1.62 Supply voltage (Max) (V) 5.5 Supply current (Typ) (uA) 0.5 Comparator channels (#) 2 Features Built-in hysteresis Rating Catalog Interface type Switch open-in-new Find other Temperature switches

Package | Pins | Size

SOT-5X3 (DRL) 6 open-in-new Find other Temperature switches

Features

  • Resistor programmable temperature trip points and hysteresis options
    • Resistor tolerances contribute zero error
    • Hysteresis options: 5°C, 10°C and 20°C
  • Dual outputs for overtemperature detection
    • Channel A (overtemperature-hot): +30 to +124°C, 2°C steps
    • Channel B (overtemperature-warm): +30 to +105°C, 5°C steps
  • Accuracy level options (maximum at +30°C to +130°C):
    • A2 Level: ±3.0°C (±1.5°C from +30°C to +70°C)
    • A3 Level: ±3.5°C (±2.0°C from +30°C to +70°C)
  • Ultra-low power consumption: 0.5 µA typical at 25°C
  • Supply voltage: 1.62 to 5.5 V
  • Open-drain outputs
  • Trip test function enables in-system testing
  • Available in a SOT-563 (1.60-mm × 1.20-mm),
    6-pin package

All trademarks are the property of their respective owners.

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Description

The TMP392 device is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from 30°C to 130°C. The TMP392 offers dual overtemperature (hot and warm) detection. The trip temperatures (TTRIP) and thermal hysteresis (THYST) options are programmed by two E96-series resistors (1% tolerance) on the SETA and SETB pins. Channel A resistors can range from 1.05 KΩ to 909 KΩ, representing one of 48 unique values. Channel B resistors can range from 10.5 KΩ to 909 KΩ

The value of the resistor to ground on SETA input sets the TTRIP threshold of Channel A. The value of the resistor to ground on SETB input sets the TTRIP threshold of Channel B, as well as the THYST options of 5°C, or 10°C for both channels, to prevent undesired digital output switching. When the SETB input is connected to ground, Channel A operates with 20°C hysteresis. Resistors accuracy has no impact to TTRIP accuracy.

To enable customer board-level manufacturing, the TMP392 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.

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Technical documentation

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Type Title Date
* Datasheet TMP392 Ultra-Small, Dual-Channel (Hot and Warm Trip), 0.5-µA, Resistor-Programmable Temperature Switch datasheet Nov. 15, 2019
More literature TMP392EVM EU Declaration of Conformity (DoC) May 06, 2020
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
User guide TMP392EVM User's Guide Nov. 14, 2019
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
29
Description

The TMP390 evaluation module (EVM) is a plug-and-play system to test and evaluate the TMP390 analog temperature switch. TMP390EVM features resistor-programmable inputs for the dual-channel switch with both hot and cold trip settings.

The EVM can be plugged into a USB port to supply power to the (...)

Features
  • Dual-channel trip-point settings
  • Manual trip test
  • Manual reset
  • USB or external power-supply options
  • Detachable sensor board for prototyping
EVALUATION BOARD Download
29
Description
The TMP392 evaluation kit is a plug and play system to test and evaluate the TMP392 analog temperature switch. The EVM features resistor-programmable inputs for the dual-channel switch with both hot and warm trip settings to protect two different over-temperature conditions or be used as an (...)
Features
  • Dual-channel trip point settings
  • Manual trip test
  • Manual reset
  • USB or external supply options
  • Detachable sensor board for prototyping

CAD/CAE symbols

Package Pins Download
SOT-5X3 (DRL) 6 View options

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