Overview
The TMP390AQDRLRQ1 is a highly efficient, dual-channel, resistor-programmable temperature switch produced by Texas Instruments. This ultra-small device is designed for applications requiring precise temperature monitoring and control, particularly in automotive and industrial environments. It operates with a low supply current of 0.5µA, making it ideal for power-sensitive applications. The TMP390AQDRLRQ1 features independent high and low-temperature detection channels, allowing for customizable trip points and hysteresis settings via external resistors. Its compact SOT-5X3 package and wide operating temperature range of -55°C to 130°C make it a versatile solution for various thermal management needs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Current (Typ) | 0.5 | µA | |
| Supply Current (Max) | 1 | µA | |
| Operating Temperature Range | -55 to 130 | °C | |
| Package | SOT-5X3 | ||
| SetPoint Type | Resistor Programmable | ||
| Output Type | Open Drain | ||
| Hysteresis | 5°C or 10°C | Selectable | |
| Comparator Channels | 2 | ||
| Supply Voltage (Min) | 1.62 | V |
Key Features
- Ultra-low power consumption with a typical supply current of 0.5µA.
- Dual-channel temperature detection for independent high and low-temperature monitoring.
- Resistor-programmable trip points and hysteresis settings for precise thermal control.
- Compact SOT-5X3 package suitable for space-constrained applications.
- Wide operating temperature range from -55°C to 130°C, ideal for harsh environments.
- Open-drain outputs for easy integration with external circuitry.
Applications
The TMP390AQDRLRQ1 is widely used in automotive systems for thermal protection and monitoring, such as in engine control units, battery management systems, and climate control. In industrial applications, it is employed in process control, HVAC systems, and equipment overheating protection. Its low power consumption and precise temperature control also make it suitable for consumer electronics, including smart home devices and wearable technology.
Q & A
What is the operating voltage range of the TMP390AQDRLRQ1?
The TMP390AQDRLRQ1 operates within a supply voltage range of 1.62V to 5.5V.
How is the trip temperature set for this device?
The trip temperature is set using external E96 series resistors connected to the SETA and SETB pins.
What is the typical supply current of the TMP390AQDRLRQ1?
The typical supply current is 0.5µA, making it highly efficient for low-power applications.
Can the TMP390AQDRLRQ1 operate in extreme temperatures?
Yes, it can operate in temperatures ranging from -55°C to 130°C, making it suitable for harsh environments.
What is the purpose of the hysteresis feature?
Hysteresis prevents unwanted switching of the digital output by providing a buffer between the trip and reset temperatures.
How many comparator channels does the TMP390AQDRLRQ1 have?
It has two independent comparator channels for high and low-temperature detection.
What is the output type of this device?
The TMP390AQDRLRQ1 features open-drain outputs for easy integration with external circuits.
Is the TMP390AQDRLRQ1 suitable for automotive applications?
Yes, it is specifically designed for automotive thermal management and protection.
What package does the TMP390AQDRLRQ1 come in?
It is available in a compact SOT-5X3 package.
Can the hysteresis be adjusted?
Yes, the hysteresis can be set to either 5°C or 10°C depending on the application requirements.
