Datasheet > BU52092GWZ

BU52092GWZ

更新时间： 2023-09-03 20:25:21

品牌	Logo	应用领域
罗姆 - ROHM		手机智能手机电脑
页数	文件大小	规格书
17页	901K
描述
两极检测霍尔IC用于检测S极或N极的磁场。通过组合本霍尔IC和磁铁，可以实现平板电脑和智能手机的盖开闭检测功能等。

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BU52092GWZ 数据手册

BU52092GWZ

Intermittent Operation at Power ON

Power ON

1.65V

V_DD

Startup Time

Standby Time

Supply Current

(Intermittent Action)

Indefinite Interval (Max: T_p)

High (Not detected Magnetic Field)

Low (Detected Magnetic Field)

OUT

Figure 15. Timing chart of intermittent operation at Power ON

The omnipolar detection Hall IC adopts an intermittent operation method in detecting the magnetic field during startup, as

shown in Figure 15. The IC outputs to the appropriate terminal based on the detection result and maintains the output

condition during the standby period. The output is an indefinite interval from power ON to the first end of startup (Max: T_p).

Magnet Selection

Neodymium and ferrite are major permanent magnets. Neodymium generally offers greater magnetic power per volume than

ferrite, thereby enabling miniaturization of magnet. The larger neodymium magnet is, the stronger magnetic flux density is.

And the farther detection distance is, the weaker it is. Therefore the proper size and detection distance of the magnet should

be determined according to the sensitivity of Hall IC. To increase the magnet’s detection distance, the magnet which is

thicker or larger sectional area is used.

Position of the Hall Element

I/O Equivalence Circuit

(Reference)

OUT

UCSP35L1

0.4

V_DD

0.4

OUT

0.25

GND

(UNIT: mm)

Figure 16. Position of the Hall device

Figure 17. I/O Equivalence Circuit

www.rohm.com

TSZ02201-0M2M0F416020-1-2

8.Aug.2016 Rev.001

9/14

TSZ22111 • 15 • 001

1...6 7 8910 11 12...17

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