H248 bipolar Holzer replaces A3212
Date：2016/4/6 15:13:41 Click：2377
EST248 is based on a full polar Holzer effect sensor mixed signal CMOS technology, the IC uses a chopper stabilization technology, which can provide accurate and stable magnetic switch points.
In the circuit design provides a built-in controlled clock mechanism for Hall device, and the analog signal processing circuit provides clock source, and the controlled clock mechanism can send control signal makes the consumption current is larger
The circuit periodically enter sleep mode; also the mechanism through which the chip is periodically to "wake up" and according to the predetermined magnetic field intensity threshold detection device through outside magnetic field strength big Holzer
Small。 If the magnetic flux density is higher than the "point" or "release" threshold is lower than the threshold, then the open drain output transistors are driven and latched into the corresponding state. In the "dormant" cycle, the output of the crystal
The tube is locked in its previous state. In battery powered applications, this design provides the best support for extended life.
The product features and advantages
Micro power battery powered applications
The polarity of the output switch
Working voltage can be as low as 2.5V-5.5V
The static power consumption as low as 5uA
Instead of direct application of high sensitivity of the reed switch
Stable chopper amplification
Product application domain
Solid state switch
Cordless mobile phone reminding switch
Clamshell mobile phone screen switch
For low magnetic sensing switch reed pipe replacement cycle
5.5V - 2.4V battery application
High sensitivity and high stability of magnetic switch points
Mechanical stress resistance
Digital output signal
A non polarity switch
. Low power full polar hall switch for mobile phones, PHS, cordless phone, notebook, PDA cover circuit, intelligent remote water meter, intelligent gas FarEasTone count table
Shenzhen Hao affluence Electronics Co. Ltd.
Website: www.hzfcmos.com
Fax: 086-755-33062806
Contact: Miss Chen Lin
Phone: 13682377721 13692251063
E-mail: sean@yxfic.net / HZFCMOS@163.COM
QQ: 2318230449
Factory address: Shenzhen city Longhua sea Huarong Road furuier Industrial Park
Store address: Shenzhen City, Futian District Huaqiang North, Zhenhua Road de GAOKE electronics market 12129-12132 No.
