TMP392 Dual-channel (hot & warm), resistor-programmable temperature switch
Product details
Parameters
Package | Pins | Size
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
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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.
Technical documentation
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 article | How to choose the right thermistor for your temperature sensing application | Feb. 13, 2020 | |
User guide | TMP392EVM User's Guide | Nov. 14, 2019 | |
Technical article | How to enable thermal safety for automotive infotainment and cluster systems | Oct. 15, 2019 | |
Technical article | Driving industrial innovation with small-size sensors | Sep. 12, 2019 | |
Technical article | How to select a temperature sensor probe | Feb. 18, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
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
Description
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 |
Ordering & quality
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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