中文
EnglishThe 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
摘要：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
目录
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.
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.
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.二.产品特点(Features)
Micropower consumption for battery powered
applications
Omnipolar, output switches with absolute value of
North or South pole from magnet
Operation down to 2.5V
High sensitivity for direct reed switch replacement
applications
Chopper stabilized amplifier stage
三,应用范围 (Applications)
Solid state switch
Handheld Wireless Handset Awake Switch
Lid close sensor for battery powered devices
Lid close sensor for battery powered devices
Magnet proximity sensor for reed
switch replacem ent in low duty cycle
applicationsswitch replacem ent in low duty cycle
四.下载产品资料PDF文档
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| NAME | NO | STATUS | DESCRIPTION |
| Vdd | 1 | P | Power Supply |
| Out | 2 | O | output |
| Gnd | 3 | P | IC Ground |
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 technology
provides the same output polarity for either pole face
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 noise
generated by the chopper-stabilization technique. This is especially true due to the relatively high impedance of battery supplies.
八,相关产品 更多同类产品......
| 霍尔开关系列</span> | |||
| 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</span> | DICE |
| CXFA3114S | 红外线风扇控制 IC | 家用电风扇</span> | DICE |
| 霍尔IC | ||||||||
| Part | Operating | Supply | BOP(GS) | BRP(GS) | Output | OutputType | Operating | Package |
| number | Voltage（V）</span> | Current(mA) | Temperature(℃) | |||||
| 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</span> | 释放点</span> | 磁滞 | 封装 |
| CXHA3127 | 2.5-5.5V | 7uA | 4Kv | 38 Gs | 21 Gs | 14Gs | SOT23/TO92 |
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