LN4917 is with proprietary Hall effect plate and dual CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA). When north-pole of sufficient strength on chip or south-pole of sufficient strength under chip, the LN4917 will turn on the NOUT output. When south-pole of sufficient strength on chip or north-pole of sufficient strength under chip, the LN4917 will turn on the SOUT output. While the magnetic flux density (B) is larger than operate point BOP(s), the SOUT will be turned on (low), the output is held until B is lower than release point BRP(s), then turned off (high). While the magnetic flux density (B) is larger than operate point BOP (n), the NOUT will be turned on (low), the output is held until B is lower than release point BRP (n), then turned off (high).

LN4916 is with proprietary Hall effect plate and single CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA). When south-pole of sufficient strength on chip or north-pole of sufficient strength under chip, the LN4916 will turn on the SOUT output. While the magnetic flux density (B) is larger than operate point BOP(s), the SOUT will be turned on (low), the output is held until B is lower than release point BRP(s), then turned off (high).

LN4919 is with proprietary Hall effect plate and single CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA). When north-pole of sufficient strength on chip or south-pole of sufficient strength under chip, the LN4919 will turn on the OUT output. When south-pole of sufficient strength on chip or north-pole of sufficient strength under chip, the LN4919 will turn on the OUT output. LN4919 series have above two kinds Hall effect output, please select appropriate model for different application. While the magnetic flux density (B) is larger than operate point BOP, the OUT will be turned on (low), the output is held until B is lower than release point BRP, then turned off (high).

LN4918 is with proprietary Hall effect plate and single CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA). When north-pole of sufficient strength on chip or south-pole of sufficient strength under chip, the LN4918 will turn on the OUT output. When south-pole of sufficient strength on chip or north-pole of sufficient strength under chip, the LN4918 will turn on the OUT output. LN4918 series have above two kinds Hall effect output, please select appropriate model for different application. While the magnetic flux density (B) is larger than operate point BOP, the OUT will be turned on (low), the output is held until B is lower than release point BRP, then turned off (high).

LN4923 is with proprietary Hall effect plate and single CMOS output driver, mainly designed for battery–powered, hand-held equipment (such as Cellular and Cordless Phone, PDA). When north-pole of sufficient strength on chip or south-pole of sufficient strength under chip, the LN4923 will turn on the OUT output. When south-pole of sufficient strength on chip or north-pole of sufficient strength under chip, the LN4923 will turn on the OUT output. While the magnetic flux density (B) is larger than operate point BOP, the OUT will be turned on (low), the output is held until B is lower than release point BRP, then turned off (high). LN4923 series have two kinds Hall effect output, please select appropriate model for different application.

LN4915 是一款基于混合信號 CMOS 技術(shù)的無極性霍 爾開關(guān)，這款 IC 采用了先進(jìn)的斬波穩(wěn)定技術(shù)，因而能夠提 供準(zhǔn)確而穩(wěn)定的磁開關(guān)點(diǎn)。 在電路設(shè)計(jì)上，LN4915 提供了一個內(nèi)嵌的受控時鐘機(jī) 制來為霍爾器件和模擬信號處理電路提供時鐘源，同時這個 受控時鐘機(jī)制可以發(fā)出控制信號使得消耗電流較大的電路周 期性的進(jìn)入“休眠”模式；同樣通過這個機(jī)制，芯片被周期 性的“喚醒”并且根據(jù)預(yù)定好的磁場強(qiáng)度閾值檢測外界穿過 霍爾器件磁場強(qiáng)度的大小。如果磁通密度高于“操作點(diǎn)”閾 值或者低于“釋放點(diǎn)”閾值，則開漏輸出晶體管被驅(qū)動并鎖 存成與之相對應(yīng)的狀態(tài)。而在“休眠”周期中，輸出晶體管 被鎖定在其先前的狀態(tài)下。在電池供電應(yīng)用中，這種設(shè)計(jì)對 于延長工作壽命提供了最好支持。 LN4915 的輸出晶體管在面向封裝標(biāo)示一面存在一定強(qiáng) 南極或北極磁場時被鎖定在開狀態(tài)，而在無磁場時鎖定在關(guān) 狀態(tài)。 LN4915 比 LN4913 具有更高的磁場感應(yīng)靈敏度，可實(shí) 用于安防系統(tǒng)、感應(yīng)磁體較小的場合。