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參數(shù)資料
| 型號(hào)： | A1301 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Continuous-Time Ratiometric Linear Hall Effect Sensors |
| 中文描述： | 連續(xù)時(shí)間成比例線性霍爾效應(yīng)傳感器 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 293K |
| 代理商： | A1301 |
4
A1301-DS, Rev. 2
Worcester, Massachusetts 01615-0036 (508) 853-5000
115 Northeast Cutoff, Box 15036
www.allegromicro.com
Allegro MicroSystems, Inc.
Continuous-Time Ratiometric Linear Hall Effect Sensors
A1301 and A1302
Characteristic Definitions
Quiescent Output Voltage. In the quiescent state (no sig-
nificant magnetic field: B = 0), the output, VOUTQ, equals one
half of the supply voltage, VCC, throughout the entire operating
ranges of VCC and ambient temperature, TA. Due to internal
component tolerances and thermal considerations, however,
there is a tolerance on the quiescent output voltage, VOUTQ,
which is a function of both VCC and TA. For purposes of speci-
fication, the quiescent output voltage as a function of tempera-
ture, VOUTQ(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, VOUT, in proportion to the magnetic
field applied, from VOUTQ toward the VCC 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:
The stability of the device magnetic sensitivity as a function of
ambient temperature, Sens (T
A) (%) is defined as:
Ratiometric. The A1301 and A1302 feature a ratiometric
output. This means that the quiescent voltage output, VOUTQ,
and the magnetic sensitivity, Sens, are proportional to the supply
voltage, VCC.
The ratiometric change (%) in the quiescent voltage output is
defined as:
and the ratiometric change (%) in sensitivity is defined as:
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:
VOUTQ(Τ
Α)
Sens(25C)
VOUTQ(Τ
Α)
VOUTQ(25C)
–
=
(1)
2B
VOUT(–B) VOUT(+B)
Sens
–
=
Sens(Τ
Α)
Sens(Τ
Α)
Sens(25C)
–
=
× 100%
(2)
(3)
VCC
5V
VOUTQ(VCC) VOUTQ(5V)
VOUTQ(V) =
× 100%
(4)
VCC 5V
=
× 100%
Sens(V)
Sens(VCC)
Sens(5V)
(5)
=
× 100%
Lin+
2 (VOUT(+B) –VVOUTQ )
–
VOUT(+B) VOUTQ
(6)
=
× 100%
Lin–
2(VOUT(–B) –VOUTQ)
–
VOUT(–B) VOUTQ
(7)
–
=
× 100%
Sym
VOUT(+B)
VOUTQ –VOUT(–B)
VOUTQ
(8)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A1301EUA | Continuous-Time Ratiometric Linear Hall Effect Sensors |
| A1301EUA-T | Continuous-Time Ratiometric Linear Hall Effect Sensors |
| A3121EUA | KPT 18C 18#20 PIN PLUG |
| A3121LT | HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION |
| A3121LU | HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A1301.1/2 | 制造商:DORMER 功能描述:DRILL TAPER SHANK HSS 1.1/2" |
| A1301.3/16 | 制造商:DORMER 功能描述:DRILL TAPER SHANK HSS 1.3/16" |
| A1301/2 | 制造商:DORMER 功能描述:DRILL TAPER SHANK HSS 1/2" |
| A1301/4 | 制造商:DORMER 功能描述:DRILL TAPER SHANK HSS 1/4" |
| A1301_06 | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Continuous-Time Ratiometric Linear Hall Effect Sensors |
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