CXHA3127全向霍尔效应传感器集成电路采用混合信号CMOS工艺先进的斩波稳定技术精确稳定的磁开关点霍尔元件和模拟信号处理电路提供内部控制的时钟机制

CXHA3127

CXHA3127向霍尔效应传感器集成电路采用混合信号CMOS工艺，采用先进的斩波稳定技术，提供精确稳定的磁开关点。
该电路设计为霍尔元件和模拟信号处理电路提供了一种内部控制的时钟机制。这是为了将电路的高电流消耗部分置于“睡眠”模式中。通过这个内部逻辑，设备周期性地被“唤醒”，并且根据预定义的阈值来评估霍尔元件的磁通强度。如果f lux密度高于或低于Bop/Brp阈值，则驱动输出晶体管相应地改变状态。当处于“休眠”周期时，输出晶体管锁定在其先前状态。在电池供电系统中，该设计已针对需要延长工作寿命的应用进行了优化。
CXHA3127的输出晶体管将锁定（Bop）在足够强的南或北m磁场朝向封装标记侧的情况下。在没有磁场的情况下，输出将被锁定（Brp）。
电池供电的微功耗应用
全向输出开关，绝对值为
磁极的北极或南极
工作电压降至2.5V
直接簧片开关更换灵敏度高应用
斩波稳定放大器级

产品简介

目录s2I嘉泰姆
1.产品概述         2.产品特点s2I嘉泰姆
3.应用范围       4.下载产品资料PDF文档 s2I嘉泰姆
5.产品封装图                     6.电路原理图             s2I嘉泰姆
7.功能概述       8.相关产品s2I嘉泰姆
一,产品概述(General Description)

   The CXHA3127 Omnipolar Hall effect sensor IC is fabricated from mixed signal CMOS technology .It incorporates advan ced chopper-stabilization techniques to provide accurate and stable magnetic switch points.s2I嘉泰姆
      The circuit design provides an inte rnally controlled clocking m echanism to cycle power to the Hall element and analog signal processing circuits. This serves to place the h igh current-consuming portions of the circu it into a “Sleep” m ode.Periodically the device is “A wakened” by this internal logic and the magnetic f lux from the Hall elem ent is evaluated against the predefined thresholds. If the f lux density is above or below the Bop/Brp thresholds then the output transistor is driven to change s tates accordingly. While in the “Sleep” cy cle the outpu t transistor is latched in its prev ious state. The design has been optim ized for service in applications requiring extended operating lifetime in battery powered systems.s2I嘉泰姆
    The output transistor of the CXHA3127 will be latched on (Bop) in the pre sence of a sufficiently strong South or North m agnetic field facing the m arked side of the package. The output will be latched off (Brp) in the absence of a magnetic field.s2I嘉泰姆
二.产品特点(Features)

Micropower consumption for battery powereds2I嘉泰姆
applicationss2I嘉泰姆
Omnipolar, output switches with absolute value ofs2I嘉泰姆
North or South pole from magnets2I嘉泰姆
Operation down to 2.5Vs2I嘉泰姆
High sensitivity for direct reed switch replacements2I嘉泰姆
applicationss2I嘉泰姆
Chopper stabilized amplifier stages2I嘉泰姆
三,应用范围 (Applications)

Solid state switchs2I嘉泰姆
Handheld Wireless Handset Awake Switchs2I嘉泰姆
Lid close sensor for battery powered devicess2I嘉泰姆
Magnet proximity sensor for reed
switch replacem ent in low duty cycles2I嘉泰姆
applicationss2I嘉泰姆
四.下载产品资料PDF文档

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

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五,产品封装图 (Package)s2I嘉泰姆

NAME	NO	STATUS	DESCRIPTION
Vdd	1	P	Power Supply
Out	2	O	output
Gnd	3	P	IC Ground

六.电路原理图

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七,功能概述

Eastera's pole-independent sensing technique allows for operation with either a north pole or south pole magnet orientation,enhancing the manufacturability of the device. The state-of-the-art technologys2I嘉泰姆
provides the same output polarity for either pole faces2I嘉泰姆
It is strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor) between the supply and ground of the device to reduce both external noise and noises2I嘉泰姆
generated by the chopper-stabilization technique. This is especially true due to the relatively high impedance of battery supplies.s2I嘉泰姆
八,相关产品更多同类产品......

霍尔开关系列
型号	功能	适用范围	封装
CXHA3131	单线圈霍尔传感器 IC	用于单线圈无刷直流风扇/马达	TO-94
CXHA3132	双输出霍尔传感器 IC	用于直流风扇	TO-94
CXFA3114C	红外线风扇控制 IC	家用电风扇	DICE
CXFA3114S	红外线风扇控制 IC	家用电风扇	DICE

霍尔IC
Part	Operating	Supply	BOP(GS)	BRP(GS)	Output	OutputType	Operating	Package
number	Voltage（V）	Current(mA)	BOP(GS)	BRP(GS)	Output	OutputType	Temperature(℃)	Package
CXFA3115	3.5-24	3	25	25	Latch	Pull-up	-145	TO-92S-3/SOT-23-3

全极性低功耗霍尔IC
型号	工作电压	工作电流	ESD	工作点	释放点	磁滞	封装
CXHA3127	2.5-5.5V	7uA	4Kv	38 Gs	21 Gs	14Gs	SOT23/TO92

CXHA3127

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产品简介