A1354KKTTN-T屬于傳感器變送器的磁性傳感器-線性羅盤（IC）。由Allegro MicroSystems制造生產(chǎn)的A1354KKTTN-T磁性傳感器 - 線性，羅盤（IC）該系列產(chǎn)品可用于將磁場強度作為一個可變數(shù)量進行測量，而相比之下，類似產(chǎn)品僅檢測是否存在強度超過某個限值的磁場。常見的應用包括測量地球磁場，以類似于傳統(tǒng)羅盤的方式進行定向，市面上的一些器件允許以相對于磁場的物理方向直接讀取測量值。

Description

The A1354 device is a high precision, programmable 2-wire Hall effect linear sensor IC with a pulse width modulated (PWM) output. The duty cycle (D) of the PWM output signal is proportional to the applied magnetic field. The A1354 device converts an analog signal from its internal Hall circuit to a digitally encoded PWM output signal. The coupled noise immunity of the digitally encoded PWM output is far superior to the noise immunity of an analog output signal.

Features and Benefits

? Designed for automotive, battery-powered applications

? Customer programmable quiescent duty cycle, sensitivity, and PWM carrier frequency, through VCC pin

? Simultaneous programming of duty cycle, sensitivity, and PWM carrier frequency, for system optimization

? Factory programmed sensitivity temperature coefficient and quiescent duty cycle drift

? Selectable unidirectional or bidirectional quiescent duty cycles

? Pulse width modulated (PWM) output provides increased noise immunity compared to analog output

? Temperature-stable quiescent duty cycle output and sensitivity

? Output duty cycle clamps provide short circuit diagnostic capabilities

? Optional 50 duty cycle calibration test mode at device power-up

? Wide ambient temperature range: –40°C to 125°C

? Resistant to mechanical stress

? Extremely thin package: 1 mm case thickness