A3212ELHLT-T 厂家 ALLEGRO
批号 07+ROHS
数量 80000
封装 3-lead SOT
包装 3000PCS/REEL
备注 original/IN STOCK 用于手机、小灵通、无绳电话、Notebook、PDA翻盖电路,智能远传水表、智能远传气表计数
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A3211 和 A3212 集成电路是带有锁存数字输出的超灵敏、不受磁极约束的霍尔效应开关。 这类传感器尤其适用于电池供电型、手持型设备的操作,例如移动和无绳电话、传呼机以及掌上型电脑。 2.5 至 3.5 伏特操作和独特的时钟方法,能将平均操作功率要求降低到 15 μ瓦特、2.75 伏特电源以下。
与其他霍尔效应开关不同的是,只要北极或南极磁场强度足够大,就能打开 A3212 中的输出,没有磁场的时候,输出就会停止。 A3211 提供反向输出。 不受磁极影响和的功率要求,允许这些器件轻松取换簧片开关,具有更高的可靠性并便于制造,从而降低对信号条件的要求。
稳定斩波(动态偏移取消)提升了稳定性,可降低通常由器件超模压、温度依存性及热应力引起的剩余偏移电压。
该器件将霍尔发电机、小型信号放大器、稳定斩波特性、锁存和 MOSFET 输出集中在单硅片上。 先进的 BiCMOS 工艺用于利用低电压和低功率请求、元件匹配、极低的输入偏差错误和小型元件几何尺寸的优势。
四种封装类型能为大多数应用提供磁性优化的解决方案。 微型低厚度表面安装封装类型 EH 和 EL(标高为 0.75 和 0.50 毫米)不含铅,LH 是一种含铅的低厚度 SMD,而 UA 则是一种采用过孔安装的三引脚 SIP。 这些封装均是无铅版本(后缀 –T),且引脚框采用 100% 雾锡电镀。 EL 封装限量发售,提供工程样品。
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本公司特价型号:A3986SLD A3955SB EW632 EW732
US1881KUA A3977SED A3987SLP A3212ELHLT
A1101LLHLT A1106ELHLT A1102LLHLT ACS712ELC
EW450 EW460 SS541AT SS543AT
A3985SLD PIC18F8490-I/PT TLE4921-5U A3280LUA
A3988 A3984 A3983 L6219
A3979 A3977 A3973 THS119
OV538 OV7670 OV529 OV7725 UDN2916
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TLE4921-5U 厂家 INFINEON TLE4921-5U 批号 08+ TLE4921-5U 数量 12000 TLE4921-5U 封装 4-pin SIPTLE4921-5U 包装 2000PCS/BOXTLE4921-5U 备注 original/IN STOCK 应用于计数器 Features? Advanced performance? High sensitivity? Symmetrical thresholds? High piezo resistivity? Reduced power consumption? South and north pole pre-induction possible? AC coupled? Digital output signal? Two-wire and three-wire configuration possible? Large temperature range? Large airgap? Low cut-off frequency? Protection against overvoltage? Protection against reversed polarity? Output protection against electrical disturbances The differential Hall Effect sensor TLE 4921-5U provides a high sensitivity and asuperior stability over temperature and symmetrical thresholds in order to achieve astable duty cycle. TLE 4921-5U is particularly suitable for rotational speed detectionand timing applications of ferromagnetic toothed wheels such as anti-lock brakingsystems, transmissions, crankshafts, etc. The integrated c...
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