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參數(shù)資料
| 型號： | BU52014HFV-TR |
| 廠商： | Rohm Semiconductor |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 477K |
| 描述： | IC HALL EFFECT SW BIPO HVSOF5 |
| 特色產(chǎn)品： | ROHM Hall Effect Sensor ICs |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 傳感范圍： | ±5mT 跳閘，±0.6mT 釋放 |
| 類型： | 全極開關(guān) |
| 電源電壓： | 1.65 V ~ 3.3 V |
| 電流 - 電源： | 8µA |
| 電流 - 輸出（最大）： | ±0.5mA |
| 輸出類型： | 數(shù)字，開路集電極 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | SOT-665 |
| 供應(yīng)商設(shè)備封裝： | 5-HVSOF |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | BU52014HFV-DKR BU52014HFV-DKR-ND BU52014HFVDKR |
BU52004GUL, BU52014HFV
Technical Note
8/11
www.rohm.com
2010.01 - Rev.D
?2010 ROHM Co., Ltd. All rights reserved.
螴ntermittent Operation at Power ON
The dual output Omnipolar detection Hall IC adopts an intermittent operation method in detecting the magnetic field during
startup, as shown in Fig. 25. It 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, 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.
螹agnet 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. Fig. 26 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. Fig. 27 shows Hall IC detection distance a good guide for
determining the proper size and detection distance of the magnet. Based on the BU52014HFV operating point max 5.0 mT,
the minimum detection distance for the 1mm, 2mm and 3mm magnets would be 7.6mm, 9.22mm, and 10.4mm, respectively.
To increase the magnets detection distance, either increase its thickness or sectional area.
X=Y=4mm
t=1mm,2mm,3mm
X
t
Y
&Flux density measuring point
L: Variable
t
Fig.27 Magnet Dimensions and
Flux Density Measuring Point
Magnet size
Magnet
Power ON
VDD
Startup time
Standby time
Standby time
Startup time
(Intermittent action)
Indefinite
OUT
(No magnetic
field present)
Indefinite
(Magnetic
field present)
Low
High
Supply current
Fig.25
0
1
2
3
4
5
6
7
8
9
10
0
2
4
6
8
10
12
14
16
18
20
Distance between magnet and Hall IC [mm]
Fig.26
7.6mm
t=3mm
t=1mm
t=2mm
9.2mm
10.4mm
Magnet material: NEOMAX-44H (material)
Maker: NEOMAX CO.,LTD.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| BU52014HFV-TR-CUT TAPE | 制造商:ROHM 功能描述:BU52014HFV Series 3.3 V ?0.5 mA SMT Omnipolar Detection Hall IC - HVSOF-5 |
| BU52015GUL | 制造商:ROHM 制造商全稱:Rohm 功能描述:Omnipolar Detection Hall ICs |
| BU52015GUL-E2 | 功能描述:板機(jī)接口霍耳效應(yīng)/磁性傳感器 1.65-3.3V; +/-3.0mT Bipolar Detection RoHS:否 制造商:Honeywell 類型:Bipolar Hall-Effect Digital Position Sensor 工作電源電壓:3 V to 24 V 電源電流:3.5 mA 最大輸出電流:20 mA 工作點(diǎn)最小值/最大值:5 G, 55 G 最小/最大釋放點(diǎn)（Brp）:- 55 G, - 5 G 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23 |
| BU52021HFV | 制造商:ROHM 制造商全稱:Rohm 功能描述:Omnipolar Detection Hall ICs |
| BU52021HFV-TR | 功能描述:工業(yè)霍耳效應(yīng)/磁性傳感器 ULTRA SMALL DETECT SENSOR; 2.4-3.6V RoHS:否 制造商:Honeywell 操作類型: 操作高斯: 工作電源電壓: 電流額定值: 封裝 / 箱體: 輸出下降時間: 工作點(diǎn)最小值/最大值: 安裝風(fēng)格: 最大工作溫度: 最小工作溫度: 最大輸出電流: 封裝: |
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