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參數(shù)資料
| 型號(hào)： | A1374EKB-T |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HIgh Precision, Output Pin Programmable Linear Hall Effect Sensors |
| 中文描述： | 高精度，輸出引腳可編程線性霍爾效應(yīng)傳感器 |
| 文件頁(yè)數(shù)： | 14/23頁(yè) |
| 文件大?。?/td> | 435K |
| 代理商： | A1374EKB-T |
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14
A1373-DS, Rev. 3
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
High Precision, Output Pin Programmable, Linear Hall Effect Sensors
A1373 and A1374
Characteristic Definitions
Quiescent Output Voltage.
In the quiescent state (no signifi-
cant magnetic field: B = 0), the output, V
OUTQ
, equals a ratio of
the supply voltage, V
CC
, throughout the entire operating ranges
of V
CC
and ambient temperature, T
A
. Due to internal compo-
nent tolerances and thermal considerations, however, there is
a tolerance on the quiescent output voltage,
Δ
V
OUTQ
, which is
a function of both
Δ
V
CC
and
Δ
T
A
. For purposes of specifica-
tion, the quiescent output voltage as a function of temperature,
Δ
V
OUTQ(
Δ
T
A
)
, is defined as:
where Sens is in mV/G, and the result is the device equivalent
accuracy, in gauss (G), applicable over the entire operating tem-
perature range.
Sensitivity.
The presence of a south-polarity (+B) magnetic
field, perpendicular to the branded face of the device package,
increases the output voltage, V
OUT
, in proportion to the magnetic
field applied, from V
OUTQ
toward the V
CC
rail. Conversely, the
application of a north polarity (–B) magnetic field, in the same
orientation, proportionally decreases the output voltage from its
quiescent value. This proportionality is specified as the magnetic
sensitivity of the device and is defined as:
V
OUT(–B)
Sens
=
The stability of the device magnetic sensitivity as a function of
ambient temperature,
Δ
Sens
(
Δ
T
A
)
(%) is defined as:
Ratiometric.
The A1373 and A1374 feature ratiometric
output. This means that the quiescent voltage output, V
OUTQ
,
magnetic sensitivity, Sens, and clamp voltage, V
OUTCLP
, are
proportional to the supply voltage, V
CC
.
The ratiometric change in the quiescent output voltage,
RAT
VOUT(Q)
(%), is defined as:
V
OUTQ(V
CC
)
RAT
VOUT(Q)
=
the ratiometric change in sensitivity is defined as:
and the ratiometric change in clamp voltage is defined as:
Note that clamping effect is applicable only when clamping is
enabled by programming of the device.
Linearity and Symmetry.
The on-chip output stage is
designed to provide linear output at a supply voltage of 5 V.
Although the application of very high magnetic fields does not
damage these devices, it does force their output into a nonlinear
region. Linearity in percent is measured and defined as:
and output symmetry as:
Δ
V
OUTQ(
ΔΤ
Α
)
Sens
(
25
oC
)
V
OUTQ(
Τ
Α
)
V
OUTQ(
25
oC
)
–
=
(1)
2
B
V
OUT(+B
)
–
Δ
Sens
(
ΔΤ
Α
)
Sens
(
Τ
Α
)
Sens
(
25
oC
)
Sens
(
25
oC
)
–
=
× 100
%
(2)
(3)
V
CC
5 V
V
OUTQ(5V)
× 100
%
(4)
V
CC
5 V
=
× 100
%
RAT
Sens
Sens
(V
CC
)
Sens
(
5
V
)
(5)
=
× 100
%
Lin
+
2 (
V
OUT(+B)
– V
VOUTQ
)
–
V
OUT(+B)
V
OUTQ
(7)
=
× 100
%
Lin
–
2(
V
OUT(–B)
– V
OUTQ
)
–
V
OUT(–B)
V
OUTQ
(8)
–
=
× 100
%
Sym
V
OUT(+B)
V
OUTQ
– V
OUT(–B)
V
OUTQ
(9)
=
RAT
VCLP
V
CC
5 V
V
CLP(V
CC
)
V
CLP(5V)
× 100
%
(6)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A1374EKBTI | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
| A1374EKBTI-T | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
| A1374LKB | 功能描述:IC SENSOR HALL EFFECT PREC 3-SIP RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)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(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A1374LKB-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(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)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(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A1374LKBTI | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Precision, Output Pin Programmable Linear Hall Effect Sensors |
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