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參數(shù)資料
| 型號： | A1384ELHLT-T |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| 中文描述： | 可編程線性霍爾與模擬輸出的微型超薄表面貼裝封裝效應傳感器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大小： | 415K |
| 代理商： | A1384ELHLT-T |
Programmable Linear Hall Effect Sensors with Analog Output
Available in a Miniature Thin Profile Surface Mount Package
A1381, A1382,
A1383, and A1384
9
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
For purposes of specification, the sensitivity drift due to package
hysteresis,
Sens
PKG
, is defined as:
Sens
(25°C)2
–
Sens
(25°C)1
Sens
(25°C)1
where Sens
(25°C)1
is the programmed value of sensitivity at T
A
= 25°C, and Sens
(25°C)2
is the value of sensitivity at T
A
= 25°C,
after temperature cycling T
A
up to 150°C, down to –40°C, and
back to up 25°C.
Sens
PKG
=
×
100%
,
(8)
Linearity Sensitivity Error
The 138x family is designed to
provide a linear output in response to a ramping applied magnetic
field. Consider two magnetic fields, B1 and B2. Ideally, the sen-
sitivity of a device is the same for both fields, for a given supply
voltage and temperature. Linearity error is present when there is a
(Lin
ERRPOS
) and negative (Lin
ERRNEG
) applied magnetic fields.
Linearity error (%) is measured and defined as:
where:
Sens
BPOS2
Sens
BPOS1
Sens
BNEG2
Sens
BNEG1
1–
Lin
ERRPOS
=
×
100%
,
1–
Lin
ERRNEG
=
×
100%
,
(9)
and B
POS
x
and B
NEG
x
are positive and negative magnetic fields,
with respect to the quiescent voltage output such that
|B
POS2
| > |B
POS1
| and |B
NEG2
| > |B
|. Then:
|V
OUT(B
x
)
–
V
OUT(Q)
|
B
x
Sens
B
x
=
,
(10)
Symmetry Sensitivity Error
The magnetic sensitivity of an
A138x device is constant for any two applied magnetic fields of
equal magnitude and opposite polarities.
Lin
ERR
max(|
Lin
ERRPOS
| , |
Lin
ERRNEG
| )
=
.
(11)
Symmetry error, Sym
ERR
(%), is measured and defined as:
Sens
BPOS
Sens
BNEG
1–
Sym
ERR
=
×
100%
,
(12)
where Sens
B
x
is as defined in equation 10, and B
POS
and B
NEG
are positive and negative magnetic fields such that |B
POS
| = |B
NEG
|.
Ratiometry Error
The A138x devices feature ratiometric output.
This means that the quiescent voltage output, V
OUT(Q)
, magnetic
sensitivity, Sens, and clamp voltage, V
CLP(HIGH)
and V
CLP(LOW)
,
are proportional to the supply voltage, V
CC
. In other words, when
the supply voltage increases or decreases by a certain percent-
age, each characteristic also increases or decreases by the same
percentage. Error is the difference between the measured change
in the supply voltage relative to 5 V, and the measured change in
each characteristic.
The ratiometric error in quiescent voltage output, Rat
ERRVOUT(Q)
(%), for a given supply voltage, V
CC
, is defined as:
V
OUT(Q)(VCC)
/ V
OUT(Q)(5V)
V
CC
/
5 V
1–
Rat
ERRVOUT(Q)
=
×
100%
.
(13)
The ratiometric error in magnetic sensitivity, Rat
ERRSens
(%), for
a given supply voltage, V
CC
, is defined as:
Sens
(VCC)
/ Sens
(5V)
V
CC
/
5 V
1–
Rat
ERRSens
=
×
100%
.
(14)
The ratiometric error in the clamp voltages, Rat
ERRCLP
(%), for a
given supply voltage, V
CC
, is defined as:
V
CLP(VCC)
/ V
CLP(5V)
V
CC
/
5 V
1–
Rat
ERRCLP
=
×
100%
.
(15)
where V
CLP
is either V
CLP(HIGH)
or V
CLP(LOW)
.
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PDF描述 |
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| A1384EUA-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384EUATI-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LLHLT-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LUA-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A1384ELHLX-T | 制造商:Allegro MicroSystems 功能描述:LIMITED FIELD PROGRAMMABLE LIN 制造商:ALLEGRO MICROSYSTEMS, LLC 功能描述:IC HALL EFFECT SENSOR SOT-23W |
| A1384EUA-LCT | 制造商:Allegro MicroSystems LLC 功能描述: |
| A1384EUA-T | 功能描述:IC SENSOR HALL EFFECT PREC 3-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應，數(shù)字式開關，線性，羅盤 (IC) 系列:A138x 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A1384EUATI-T | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LLHLT-T | 功能描述:IC SENSOR HALL EFFECT SOT23-W RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應，數(shù)字式開關，線性，羅盤 (IC) 系列:A138x 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
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