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。这些器件尤其适用于电池供电、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 V工作电压范围和独特的时钟方法,能将平均操作功率要求降低到 15 µW 以下(2.75 V 电源电压时) 。
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。运用先进的 BiCMOS 工艺,实现低电压和低功率要求、元件匹配、极低的输入偏差错误和小型元件几何尺寸。
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 mm)不含铅,LH 是三引脚低厚度 SMD,而 UA 则是用于过孔安装的三引脚 SIP。该封装为无铅封装(后缀 –T),引脚框采用 100% 雾锡电镀。
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POWER SWITCHING REGULATORS 开关电源 切换 (DC/DC) 转换器和控制器 The MC34163 series are monolithic power switching regulators thatcontain the primary functions required for dc–to–dc converters. This series isspecifically designed to be incorporated in step–up, step–down, andvoltage–inverting applications with a minimum number of externalcomponents.These devices consist of two high gain voltage feedback comparators,temperature compensated reference, controlled duty cycle oscillator, driverwith bootstrap capability for increased efficiency, and a high current outputswitch. Protective features consist of cycle–by–cycle current limiting, andinternal thermal shutdown. Also included is a low voltage indicator outputdesigned to interface with microprocessor based systems.These devices are contained in a 16 pin dual–in–line heat tab plasticpackage for improved thermal conduction.• Output Switch Current in Excess of 3.0 A• Operation from 2.5 V to 40 V Input• L...
Rated voltage 42 V AC/80 V DCRated inductance 0.005 mH to 47 mHRated current 100 mA to 1200 mAConstruction■ Current-compensated double choke■ Ferrite core■ LCP case (UL 94 V-0), silicone potting■ Bifilar winding (B82793C0)■ Sector winding (B82793S0)Features■ High rated currents, reduced components height■ Qualified to AEC-Q200 (L 4.7 mH)■ Suitable for reflow soldering■ RoHS-compatibleFunction■ B82793C0:Suppression of asymmetrical interference coupled in on lines,whereas data signals up to some MHz can pass unaffectedly.■ B82793S0:Suppression of asymmetrical and symmetrical interference (by Lstray)coupled in on lines. The high-frequency portions of the symmetricaldata signal are decreased so far that EMC problems can besignificantly reduced.Applications■ Automotive applications, e.g. CAN bus■ Industrial applications■ Types with LR 4.7 mH only for telecom applicationsTerminals■ Base material CuSn6■ Layer composition Ni, Sn■ Hot-dipped 电感 : 51&micr...