High Precision, Output Pin Programmable
Linear Hall Effect Sensor ICs
A1373 and
A1374
13
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Linear: A type of Hall-Effect device that produces an analog output
voltage proportional to the strength of a sensed magnetic field.
Ratiometric: A linear Hall-Effect device that, when not subjected
to a significant magnetic field, has an output that is a ratio of its supply
voltage. A ratiometric performance of 100% indicates the output follows
the supply with no percentage error.
Gauss: Standard unit of measuring magnetic flux density. 1 gauss is
equal to 1 Maxwell per square centimeter or 10
-4
tesla. (For reference,
the earths magnetic field is approximately 0.5 gauss.)
Blowing: Applying a pulse of sufficient voltage and duration to
permanently set a bit, by blowing a fuse internal to the device. Once a
bit (fuse) has been blown, it cannot be reset. The terms trimming and
programming can be used interchangeably with blowing in this context.
Programming modes: Testing the results is the only valid method
to guarantee successful programming, and multiple modes are provided
to support this. The programming modes are described in the section
Mode Selection State.
Code: The number used to identify the register and the bitfield to be
programmed, expressed as the decimal equivalent of the binary value.
The LSB of a register is denoted as bit 0.
Definitions of Terms
Typical Application Drawing
2
VCC
V
REG
Output
GND
VOUT
C
BYPASS
0.1糉
C
LOAD
1 nF
R
LOAD
4.7 k
A1373
A1374
1
3
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A1374LKBTI
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A1375
制造商:HAKKO Corporation 功能描述:
A1375/P
制造商:HAKKO Corporation 功能描述:
