Datasheet > BU52075GWZ

BU52075GWZ

更新时间： 2023-09-03 20:25:20

品牌	Logo	应用领域
罗姆 - ROHM		手机摄像机智能手机电脑
页数	文件大小	规格书
19页	1345K
描述
双极检测（极性判别输出）霍尔IC BU52075GWZ内置极性判别电路，具备S极用和N极用2种输出，因此可通过输出逻辑的组合进行极性判别。若使用双极检测（极性判别输出）霍尔IC，则可进行平板电脑、智能手机等的盖开闭检测、以及数码摄像机等的液晶屏的正反检测和旋转方向检测。

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BU52075GWZ 数据手册

BU52075GWZ

Intermittent Operation at Power ON

Power ON

V_DD

Startup Time

Standby Time

High

Startup Time

Standby Time

Supply Current

(Intermittent Action)

Indefinite

Interval

OUT

(No Magnetic

Field Present)

Indefinite

Interval

OUT

(Magnetic

Field Present)

Low

Figure 17

The dual output omnipolar detection Hall IC adopts an intermittent operation method in detecting the magnetic field during

startup, as shown in Figure 17. The IC outputs to the appropriate terminal based on the detection result and maintains the

output condition during the standby period. The time from power ON until the end of the initial startup period is an indefinite

interval, but it cannot exceed the maximum period of 100ms. To accommodate the system design, the Hall IC output read

should be programmed within 100ms of power ON, but after the time allowed for the period, ambient temperature, and

supply voltage.

Magnet Selection

Of the two representative varieties of permanent magnet, neodymium generally offers greater magnetic power per volume

than ferrite, thereby enabling the highest degree of miniaturization, thus, neodymium is best suited for small equipment

applications. Figure 18 shows the relation between the size (volume) of a neodymium magnet and magnetic flux density.

The graph plots the correlation between the distance (L) from three versions of a 4mm x 4mm cross-section neodymium

magnet (1mm, 2mm, and 3mm thick) and magnetic flux density. Figure 19 shows Hall IC detection distance – a good guide

for determining the proper size and detection distance of the magnet. Based on the BU52075GWZ operating point max of

11.6mT, the minimum detection distance for the 1mm, 2mm and 3mm magnets would be 5.5mm, 6.8mm, and 7.7mm,

respectively. To increase the magnet’s detection distance, either increases the magnet’s thickness or sectional area.

t=3mm

t=1mm

t=2mm

5.5mm

6.8mm

7.7mm

Distance betw een Magnet and Hall IC [mm]

Figure 18. Magnetic Flux Density vs Distance between Magnet and Hall IC

Magnet Material: NEOMAX-44H (Material)

Maker: NEOMAX CO.,LTD.

Magnet

X=Y=4mm

t=1mm,2mm,3mm

L: Variable

…Flux Density Measuring Point

Magnet Size

Figure 19. Magnet Dimensions and

Flux Density Measuring Point

www.rohm.com

TSZ02201-0M2M0F414030-1-2

17.Oct.2014 Rev.001

10/16

TSZ22111 • 15 • 001

1...7 8 91011 12 13...19

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与BU52075GWZ相关器件

型号	品牌	获取价格	描述	数据表
BU52075GWZ-E2	ROHM	获取价格	Hall Effect Sensor, 6.5mT Min, 11.6mT Max, 1.60-0.20V, Square, Surface Mount, UCSP-4
BU52077GWZ	ROHM	获取价格	双极检测（极性判别输出）霍尔IC BU52075GWZ内置极性判别电路，具备S极用和N极用
BU52077GWZ-E2	ROHM	获取价格	Hall Effect Sensor, 10.1mT Min, 19mT Max, 1.60-0.20V, Square, Surface Mount, UCSP-4
BU52078GWZ	ROHM	获取价格	Omnipolar Detection Hall IC
BU52078GWZ-E2	ROHM	获取价格	Omnipolar Detection Hall IC
BU52092GWZ	ROHM	获取价格	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
BU52092GWZ-E2	ROHM	获取价格	Hall Effect Sensor, 1.2mT Min, 3.2mT Max, 0.2-1.6V, Square, Surface Mount, UCSP-4
BU52095GWZ	ROHM	获取价格	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
BU52097GWZ	ROHM	获取价格	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
BU52098GWZ	ROHM	获取价格	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

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