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PDF A3503 Data sheet ( Hoja de datos )
| Número de pieza | A3503 | |
| Descripción | Ratiometric Linear Hall Effect Sensor IC | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de A3503 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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A3503
Ratiometric Linear Hall Effect Sensor IC
Discontinued Product
These parts are no longer in production The device should not be
purchased for new design applications. Samples are no longer available.
Date of status change: October 31, 2005
Recommended Substitutions:
The drop-in replacement is the A1302, with a more sensitive option also
available, the A1301.
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a
product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The information
included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor
for any infringements of patents or other rights of third parties which may result from its use.
1 page  
3503
RATIOMETRIC,
LINEAR
HALL-EFFECT SENSOR ICS
NOTCH SENSING
Dwg. A-12,574
GEAR TOOTH SENSING
OPERATION
The output null voltage (B = 0 G) is nominally one-half the supply voltage. A
south magnetic pole, presented to the branded face of the package will
drive the output higher than the null voltage level. A north magnetic pole will
drive the output below the null level.
In operation, instantaneous and proportional output-voltage levels are
dependent on magnetic flux density at the most sensitive area of the device.
Greatest sensitivity is obtained with a supply voltage of 6 V, but at the cost of
increased supply current and a slight loss of output symmetry. The device's output
is usually capacitively coupled to an amplifier that boosts the output above the
millivolt level.
In two applications shown, a permanent bias magnet is attached with epoxy
glue to the back of the epoxy package. The presence of ferrous material at the face
of the package acts as a flux concentrator.
The south pole of a magnet is attached to the back of the package if the Hall-
effect IC is to sense the presence of ferrous material. The north pole of a magnet is
attached to the back surface if the integrated circuit is to sense the absence of
ferrous matrial.
Calibrated linear Hall devices, which can be used to determine the actual flux
density presented to the device in a particular application, are available.
N
321
Dwg. A-12,512
CURRENT MONITORING
ELEMENT LOCATIONS
SUFFIX "U"
AC TIVE AR E A DE PTH
0.0165"
0.42 mm
NOM
0.093"
2.37 mm
0.072"
1.83 mm
A
BR ANDE D
S UR FACE
1
2
3
Dwg. A-12,513
SUFFIX "LT"
AC TIVE AR E A DE PTH
0.0305"
0.775 mm
NOM
0.091"
2.32 mm
A
12
3
0.042"
1.08 mm
Dwg. MH-002-5D
SUFFIX "UA"
AC TIVE AR E A DE PTH
0.0195"
0.50 mm
NOM
0.081"
2.06 mm
0.059"
1.50 mm
A
BR ANDE D
S UR FACE
1
2
3
Dwg. MH-008-9A
Dwg. MH-011-3D
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet A3503.PDF ] | |
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