Overview
The LMT86DCKR from Texas Instruments is a precision CMOS temperature sensor designed for high accuracy and low power consumption. This device features a linear analog output voltage that is inversely proportional to temperature, making it an excellent alternative to thermistors. The LMT86 operates with a supply voltage as low as 2.2V and has a quiescent current of 5.4µA, which is ideal for battery-powered applications such as drones and sensor nodes. The sensor is available in various packages, including the SC70 and TO-92/TO-92S, offering flexibility for different application needs.
Key Specifications
| Specification | Value |
|---|---|
| Package | SC70 (DCK), TO-92, TO-92S |
| Pins | 5 (SC70), 3 (TO-92/TO-92S) |
| Operating Temperature Range | -50°C to 150°C |
| Output Type | Analog Voltage |
| Supply Voltage | 2.2V to 5.5V |
| Quiescent Current | 5.4µA |
| Sensor Gain | -10.9mV/°C |
| Accuracy | ±0.4°C (typical), ±2.7°C (maximum) |
| Output Drive Capability | ±50µA |
| Thermal Time Constant (TO-92S) | 10s Typical (1.2m/s Airflow) |
Key Features
- High accuracy: ±0.4°C typical, ±2.7°C maximum.
- Low power operation: 2.2V supply voltage and 5.4µA quiescent current.
- Wide operating temperature range: -50°C to 150°C.
- Short-circuit protected output and push-pull output with ±50µA drive capability.
- Footprint compatible with industry-standard LM20/19 and LM35 temperature sensors.
- Cost-effective alternative to thermistors.
- Fast thermal time constant for TO-92S package, suitable for off-board time-temperature sensitive applications.
Applications
- Infotainment and cluster systems
- Powertrain systems
- Smoke and heat detectors
- Drones and sensor nodes
- Appliances
Q & A
- What is the operating temperature range of the LMT86DCKR?
The operating temperature range is -50°C to 150°C.
- What is the supply voltage range for the LMT86DCKR?
The supply voltage range is 2.2V to 5.5V.
- What is the quiescent current of the LMT86DCKR?
The quiescent current is 5.4µA.
- What is the accuracy of the LMT86DCKR?
The accuracy is ±0.4°C typical and ±2.7°C maximum.
- What are the available packages for the LMT86DCKR?
The available packages include SC70 (DCK), TO-92, and TO-92S.
- Is the LMT86DCKR RoHS compliant?
- What is the sensor gain of the LMT86DCKR?
- Does the LMT86DCKR have short-circuit protection?
- What is the thermal time constant for the TO-92S package?
- Is the LMT86DCKR suitable for battery-powered applications?
