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| 型号： | A1351KKTTN-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 663K |
| 描述： | IC SENSOR HALL EFFECT 4-SIP |
| 产品培训模块： | Current Sensor |
| 产品变化通告： | Product Obsolescence 09/Nov/2011 |
| 标准包装： | 4,000 |
| 传感范围： | 0.055% ~ 0.095% DC/G |
| 类型： | 线性 - 单极，双极 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 10mA |
| 电流 - 输出（最大）： | 1mA |
| 输出类型： | 数字，推挽式 |
| 特点： | 高精度 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 4-SIP |
| 供应商设备封装： | 4-SIP |
| 包装： | 带卷 (TR) |
A1351
High Precision Linear Hall Effect Sensor IC
with a Push/Pull, Pulse Width Modulated Output
10
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Symmetry Sensitivity Error The magnetic sensitivity of an
A1351 device is constant for any two applied magnetic fields of
equal magnitude and opposite polarities.
Symmetry error, Sym
ERR
(%), is measured and defined as:
Sens
BPOS
Sens
BNEG
1
Sym
ERR
=
?SPAN class="pst A1351LKTTN-T_2172462_8">
100%
,
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
(13)
where Sens
Bx
is as defined in equation 4, and B
POS
and B
NEG
are
positive and negative magnetic fields such that |B
POS
| = |B
NEG
|.
Note that the symmetry error specification is only valid for bipolar
devices.
Duty Cycle Jitter The duty cycle of the PWM output may vary
slightly over time despite:
" the presence of a constant applied magnetic field, and
" a constant carrier frequency for the PWM signal.
This phenomenon is known as jitter, and is defined as:
%D
B
(max) %D
B
(min)
2
J
D
= ?/DIV>
,
(14)
where %D
B
(max) and %D
B
(min) are the maximum and mini-
mum duty cycles measured the over 1000 PWM clock periods
with a constant applied magnetic field. J
D
is given in %D (see
figure below).
Duty Cycle Resolution The ability to know the value of the
applied magnetic field from the device output is affected by jitter.
The resolution of the magnetic field, in Gauss (G), is defined as:
J
DC
Sens
RES
=
.
(15)
Jitter is instability or small rapid irregularity about a specific data position in
a periodic electrical signal waveform from cycle to cycle. In this figure, the
A1351 PWM Output jitter is ?.025% D at 25癈, Sens = 0.095% D/G.
t
PERIOD
盝itter
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相关代理商/技术参数 |
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|---|---|
| A1351LKTTN-T | 功能描述:IC SENSOR HALL EFFECT 4-SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1352-035 | 制造商:AVX Corporation 功能描述: |
| A1352-037 | 制造商:AVX Corporation 功能描述: |
| A13532-43N | 制造商:Harris Corporation 功能描述: |
| A1354 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Precision 2-Wire Linear Hall Effect Sensor IC with Pulse Width Modulated Output |
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