玩具霍尔开关

AR248是一款基于混合信号CMOS 技术的无极性霍尔开关，这款IC 采用了先进的斩波稳定技术，因而能够提供准确而稳定的磁开关点。在电路设计上，AR248提供了一个内嵌的受控时钟机制来为霍尔器件和模拟信号处理电路提供时钟源，同时这个受控时钟机制可以发出控制信号使得消耗电流较大的电路周期性的进入“休眠”模式；同样通过这个机制，芯片被周期性的“唤醒”并且根据预定好的磁场强度阈值检测外界穿过霍尔器件磁场强度的大小。如果磁通密度高于“操作点”阈值或者低于“释放点”阈值，则开漏输出晶体管被驱动并锁存成与之相对应的状态。而在“休眠”周期中，输出晶体管被锁定在其先前的状态下。在电池供电应用中，这种设计对于延

反输出霍尔开关

AR248R是一款基于混合信号CMOS 技术的无极性霍尔开关，这款IC 采用了先进的斩波稳定技术，因而能够提供准确而稳定的磁开关点。在电路设计上，AR248提供了一个内嵌的受控时钟机制来为霍尔器件和模拟信号处理电路提供时钟源，同时这个受控时钟机制可以发出控制信号使得消耗电流较大的电路周期性的进入“休眠”模式；同样通过这个机制，芯片被周期性的“唤醒”并且根据预定好的磁场强度阈值检测外界穿过霍尔器件磁场强度的大小。如果磁通密度高于“操作点”阈值或者低于“释放点”阈值，则开漏输出晶体管被驱动并锁存成与之相对应的状态。而在“休眠”周期中，输出晶体管被锁定在其先前的状态下。在电池供电应用中，这种设计对于

FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS

DESCRIPTION The LM148 consists of four independent, high gain internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar UA741 operational amplifier. In addition the total supply current for all four a

FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS

DESCRIPTION The LM148 consists of four independent, high gain internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar UA741 operational amplifier. In addition the total supply current for all four a

Silicon Complementary Transistors Darlington Power Amplifier

Description: The NTE247 (NPN) and NTE248 (PNP) are silicon complementary Darlington transistors in a TO3 type case designed for general–purpose amplifier and low–frequency switching applications. Features: • High DC Current Gain: hFE = 3500 Typ @ IC = 5A • Collector–Emitter Sustainin

TRISILTM

DESCRIPTION The SMTPBxx series has been designedto protect telecommunication equipment against lightning and transient induced by AC power lines. FEATURES BIDIRECTIONAL CROWBAR PROTECTION. BREAKDOWNVOLTAGE RANGE: From 62 V To 270 V. HOLDING CURRENT: IH= 150 mA min REPETITIVE PE

Quad 741 Op Amps LM149 Wide Band Decompensated (AV MIN = 5)

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