>> PC228高靈敏度全極性微功耗霍爾開關
The LH228 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 LH228 w ill be latched on (Bop) 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 (Brp) in the absence of a magnetic field.
>> 產品特性及優點
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
>> 產品應用領域
Solid state switch
Handheld Wireless Handset Awake Switch Lid close sensor for battery powered devices
Magnet proximity sensor for reed switch replacement in low duty cycle application |
 |
|
手機站
您當前位置是：產品大全 >> 電子元器件 >>
傳感器、敏感元器件
免責聲明：以上所展示的信息由會員自行提供，內容的真實性、準確性和合法性由發布會員負責，www.qy6.com對此不承擔任何責任。如有侵犯您的權益，請來信通知刪除。
聯系信息
