描述 Description

HAL 5xy系列由各種以CMOS生產(chǎn)的霍爾開(kāi)關(guān)組成。它們都具有主動(dòng)溫度偏置補(bǔ)償，比較器和開(kāi)漏輸出晶體管。比較器通過(guò)霍爾片（霍爾電壓）比較實(shí)際磁通量和設(shè)定的參考值（開(kāi)關(guān)點(diǎn)）。輸出晶體管相應(yīng)開(kāi)或關(guān)。
這系列的不同產(chǎn)品以開(kāi)關(guān)行為和開(kāi)關(guān)點(diǎn)來(lái)區(qū)分。主動(dòng)偏置補(bǔ)償帶來(lái)在電壓和溫度范圍變化下的穩(wěn)定磁場(chǎng)數(shù)據(jù)。此外，磁參數(shù)對(duì)機(jī)械壓力效應(yīng)不敏感。產(chǎn)品系為工業(yè)和汽車應(yīng)用設(shè)計(jì)，工作電壓范圍從3.8伏到24伏，環(huán)境溫度范圍從–40 °C 到150 °C。產(chǎn)品有 SMD-封裝 SOT89B-1和含鉛的TO92UA-1和TO92UA-2封裝。

特性 Features

·Switching offset compensation at typically 62 kHz
·Operates from 3.8 V to 24 V supply voltage
·Overvoltage protection at all pins
·Reverse-voltage protection at VDD-pin
·Magnetic characteristics are robust regarding mechanical stress effects
·Short-circuit protected open-drain output by thermal shut down
·Operates with static magnetic fields and dynamic magnetic fields up to 10 kHz
·Constant switching points over a wide supply voltage range
·The decrease of magnetic flux density caused by rising temperature in the sensor system is compensated by a built-in negative temperature coefficient of the magnetic characteristics
·Ideal sensor for applications in extreme automotive and industrial environments
·EMC corresponding to ISO 7637
·Operates from ?40 °C to 170 °C junction temperature