TLE4942傳感器變送器的磁性傳感器-開(kāi)關(guān)（固態(tài)）規(guī)格書(shū)PDF中文資料

TLE4942屬于傳感器變送器的磁性傳感器-開(kāi)關(guān)（固態(tài)）。由英飛凌科技股份公司制造生產(chǎn)的TLE4942磁性傳感器 - 開(kāi)關(guān)（固態(tài)）該系列產(chǎn)品使用固態(tài)技術(shù)來(lái)檢測(cè)是否存在超過(guò)某個(gè)特定幅度和/或標(biāo)示的磁場(chǎng)，并提供指示是否存在此類磁場(chǎng)的雙態(tài)輸出。它們與磁簧開(kāi)關(guān)以及線性或羅盤(pán)型固態(tài)器件不同，前者通過(guò)使用移動(dòng)機(jī)械部件來(lái)提供類似的功能，后者提供指示所施加磁場(chǎng)的強(qiáng)度和/或方向的可變輸出。

Differential Two-Wire Hall Effect Sensor IC

The Hall Effect sensor IC TLE4942 is designed to provide information about rotational speed, direction of rotation, assembly position and limit airgap to modern vehicle dynamics control systems and ABS. The output has been designed as a two wire current interface based on a Pulse Width Modulation principle. The sensor operates without external components and combines a fast power-up time with a low cut-off frequency. Excellent accuracy and sensitivity is specified for harsh automotive requirements as a wide temperature range, high ESD robustness and high EMC resilience. State-of-the-art BiCMOS technology is used for monolithic integration of the active sensor areas and the signal conditioning.

Finally, the optimised piezo compensation and the integrated dynamic offset compensation enable easy manufacturing and elimination of magnet offsets.

The TLE4942C is additionally provided with an overmolded 1.8nF capacitor for improved EMI performance.

Features

? Two-wire PWM current interface

? Detection of rotation direction

? Airgap diagnosis

? Assembly position diagnosis

? Dynamic self-calibration principle

? Single chip solution

? No external components needed

? High sensitivity

? South and north pole pre-induction possible

? High resistance to piezo effects

? Large operating air-gaps

? Wide operating temperature range

? TLE4942C: 1.8nF overmolded capacitor