Description
The YH13s omnipolar Hall effect sensor IC is fabricated from mixed signal
CMOS technology. It incorporates advanced chopper-stabilization techniques to
provide accurate and stable magnetic switch points.
The circuit design provides an internally controlled clocking mechanism to
cycle power to the Hall element and analog signal processing circuits. This serves
to place the high current-consuming portions of the circuit into a Sleep” mode.
Periodically the device is Awakened” by this internal logic and the magnetic flux
from the Hall element is evaluated against the predefined thresholds. If the
flux density is above or below the Bop/Brp thresholds then the output transistor is
driven to change states accordingly. While in the Sleep” cycle the output transistor
is latched in its previous state. The design has been optimized for service in
applications requiring extended operating lifetime in battery powered systems.
The output transistor of the YH13s will be latched on in the presence of a
sufficiently strong South or North magnetic field facing the marked side of the
package. The output will be latched off in the absence of a magnetic field.
Features
2.2 V to 6.0 V battery operation
High sensitivity and high stability of the magnetic switching points
High resistance to mechanical stress
Digital output signal
Switching for both poles of a magnet (omnipolar)
YHM148 Hall Switch Features and Benefits CMOS Hall IC Technology Solid-State Reliability 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 Small Size Custom sensitivity selection is available. Applications Solid state switch Handheld Wireless Handset Awake Switch ( Flip Cell/PHS Phone/Note Book/Flip Video Set) Lid close sensor for battery powered devices Magnet proximity sensor for reed switch replacement in low duty cycle applications Ordering Information Part No. Temperature Suffix Package Code YHM148 E (-40 )
YH495A线性霍尔集成电路产品特点在规定范围内电压的线性输出与磁场强度成正比可用于正极或负极磁场,超强磁场不会损伤 体积小巧TO-92UA封装典型应用 电动自行车转把 电流传感器 重量传感器 铁金属探测器 汽车点油器电特性 TA=25℃ 参 数符号测试条件量 值单位最小典型电源电压Vcc 3.55.07.0V功耗电流IccVcc=5V2.803.304.5mA静态电压V0B=0Gs2.252.52.75V高端输出电压VHB=1500±20GS4.204.254.28V低端输出电压VLB=-1500±20GS0.800.850.90V使用注意:1、安装时应尽量减小作用到霍尔电路上的机械应力。2、保证焊接质量的条件下,尽量使焊接温度低,时间短。3、如果需要将腿打弯及其它形式的变形时,首先应将腿的根部固定,随后才能将腿打弯变形。