TMP6431DECR传感器变送器的温度传感器-PTC热敏电阻规格书PDF中文资料

TMP6431DECR属于传感器变送器的温度传感器-PTC热敏电阻。由德州仪器制造生产的TMP6431DECR温度传感器 - PTC 热敏电阻正温度系数 (PTC) 热敏电阻温度传感器是随着温度升高而呈现出电阻增加的器件。与许多其他温度传感器类型相比，热敏电阻产生的输出信号相对较大且易于测量，但它们往往具有不稳定且不适合精确温度测量的特征。PTC 热敏电阻尤其适合于过热检测应用，并且通常表现出明显的非线性温度-电阻关系，因此可用于检测不精确的“高”温条件，但不适于进行精确测量。

1 Features

• Silicon-based thermistor with a

positive temperature coefficient (PTC)

• Linear resistance change across temperature

• 47-kΩ nominal resistance at 25 °C (R25)

– ±1% maximum (0 °C to 70 °C)

• Wide operating temperature of –40 °C to +150 °C

• Consistent sensitivity across temperature

– 6400 ppm/°C TCR (25 °C)

– 0.2% typical TCR tolerance across temperature

range

• Fast thermal response time of 0.6 s (DEC)

• Long lifetime and robust performance

– Built-in fail-safe in case of short-circuit failures

– 0.5% typical long term sensor drift

2 Applications

• Temperature monitoring

– HVAC and thermostats

– Industrial control and appliances

• Thermal compensation

– Display backlights

– Building automation

• Thermal threshold detection

– Motor control

– Chargers

3 Description

Get started today with the Thermistor Design Tool,

offering complete resistance vs temperature table (RT

table) computation, other helpful methods to derive

temperature and example C-code.

Linear thermistors offer linearity and consistent

sensitivity across temperature to enable simple and

accurate methods for temperature conversion. Low

power consumption and a small thermal mass

minimize the impact of self-heating. With built-in

failsafe behavior at high temperatures and powerful

immunity to environmental variation, these devices

are designed for a long lifetime of high performance.

The small size of the TMP6 series also allows for

close placement to heat sources and quick response

times.

Take advantage of benefits over NTC thermistors

such as no extra linearization circuitry, minimized

calibration, less resistance tolerance variation, larger

sensitivity at high temperatures, and simplified

conversion methods to save time and memory in the

processor.

The TMP64 is currently available in a 0402 footprintcompatible

X1SON package and a 0603 footprintcompatible

SOT-5X3 package.