Overview
The STLM20W87F from STMicroelectronics is a precision analog output temperature sensor designed for low current applications, particularly where maximizing battery life is crucial. This sensor operates over a wide temperature range and is optimized for ultra-low power consumption, making it ideal for battery-powered devices.
The STLM20W87F is part of the STLM20 series, which features high accuracy and low self-heating, ensuring reliable temperature measurements without significant power drain. Its compact SOT-323-5 package and surface mount technology make it suitable for a variety of applications in modern electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Type | Analog | |
| Supply Voltage | 2.4 V to 5.5 V | V |
| Operating Temperature Range | –55 °C to 130 °C (Grade 7), –40 °C to 85 °C (Grade 9) | °C |
| Maximum Temperature Accuracy | ± 1.5 °C (±0.5 °C typical) at 25 °C and VCC of 2.7 V | °C |
| Maximum Quiescent Supply Current | 8 µA | µA |
| Package Style | SOT-323-5 | |
| Mounting Method | Surface Mount | |
| Output Current-Max | 10 mA | mA |
| Thermal Resistance | 331.4 °C/W (SOT323-5L) | °C/W |
Key Features
- Precision analog voltage output temperature sensor with high accuracy (± 1.5 °C maximum at 25 °C and VCC of 2.7 V)
- Ultra-low quiescent supply current of 8 µA, minimizing self-heating and power consumption
- Wide operating temperature range: –55 °C to 130 °C (Grade 7) and –40 °C to 85 °C (Grade 9)
- Operating voltage range: 2.4 V to 5.5 V
- Compact SOT-323-5 package with surface mount technology
- Capable of handling capacitive loads up to 300 pF
- Low output impedance of 160 Ω
Applications
- Smartphones and mobile devices
- Multimedia PDA devices
- GPS devices
- Portable medical instruments
- Voltage-controlled crystal oscillator temperature monitors
- RF power transistor monitors
Q & A
- What is the operating temperature range of the STLM20W87F?
The STLM20W87F operates over a temperature range of –55 °C to 130 °C (Grade 7) and –40 °C to 85 °C (Grade 9).
- What is the maximum quiescent supply current of the STLM20W87F?
The maximum quiescent supply current is 8 µA.
- What is the output type of the STLM20W87F?
The output type is analog.
- What is the package style of the STLM20W87F?
The package style is SOT-323-5.
- What is the maximum temperature accuracy of the STLM20W87F at 25 °C and VCC of 2.7 V?
The maximum temperature accuracy is ± 1.5 °C (±0.5 °C typical).
- What are some typical applications of the STLM20W87F?
Typical applications include smartphones, multimedia PDA devices, GPS devices, portable medical instruments, and RF power transistor monitors.
- How much capacitive load can the STLM20W87F handle?
The STLM20W87F can handle capacitive loads up to 300 pF.
- What is the thermal resistance of the STLM20W87F in the SOT323-5L package?
The thermal resistance is 331.4 °C/W.
- What is the maximum output current of the STLM20W87F?
The maximum output current is 10 mA.
- How does the power supply voltage affect the operating temperature range of the STLM20W87F?
The power supply voltage affects the lower end of the operating temperature range. For example, decreasing the power supply voltage from 2.7 V to 2.4 V changes the low end of the operating temperature range from –55 °C to –30 °C.
