Automotive grade, ultra-small, dual-channel, 0.5-μA, resistor-programmable temperature switch
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified with the following results:
- Temperature grade 1: –40°C to +125°C operating temperature range
- Extended operating temperature range: −55°C to +130°C
- Resistor programmable temperature trip points and hysteresis options
- Resistor tolerances contribute zero error
- Hysteresis options: 5°C, 10°C and 20°C
- Separate outputs for overtemperature or undertemperature detection
- Channel A (overtemperature): +30 to +124°C, 2°C steps
- Channel B (undertemperature): –50 to +25°C, 5°C steps
- Accuracy without calibration
- ±1.5°C (maximum) from 0°C to +70°C
- ±3.0°C (maximum) from −55°C to +130°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 TMP390-Q1 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 –55°C to 130°C. The TMP390-Q1 offers independent overtemperature (hot) and undertemperature (cold) 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 TMP390-Q1 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TMP390-Q1 Ultra-Small, Dual-Channel (Hot and Cold Trip), 0.5-µA, Resistor-Programmable Temperature Switch datasheet (Rev. A) | Apr. 02, 2020 |
Functional safety information | TMP390-Q1 Functional Safety FIT Rate and FMD | May 12, 2020 | |
Technical articles | How to choose the right thermistor for your temperature sensing application | Feb. 12, 2020 | |
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 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
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-5X3 (DRL) | 6 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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