A1374LKB Allegro Microsystems Inc, A1374LKB Datasheet - Page 14

• Manufacturer Part Number: A1374LKB
• Description: IC SENSOR HALL EFFECT PREC 3-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Bipolar or Unipolar, Programmabler

Specifications of A1374LKB

• Sensing Range: 1.75mV/G ~ 11.25mV/G
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 10mA
• Current - Output (max): 10mA
• Output Type: Analog, Ratiometric
• Features: High Precision
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A1373
A1374
Linear:
voltage proportional to the strength of a sensed magnetic field.
Ratiometric:
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:
equal to 1 Maxwell per square centimeter or 10
the earth’s magnetic field is approximately 0.5 gauss.)
Blowing:
permanently set a bit, by blowing a fuse internal to the device. Once a
Standard unit of measuring magnetic flux density. 1 gauss is
A type of Hall-Effect device that produces an analog output
Applying a pulse of sufficient voltage and duration to
and
A linear Hall-Effect device that, when not subjected
V
REG
C
0.1 μF
BYPASS
-4
tesla. (For reference,
Typical Application Drawing
High Precision, Output Pin Programmable
A1373
A1374
Definitions of Terms
VCC
GND
1
2
VOUT
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
to guarantee successful programming, and multiple modes are provided
to support this. The programming modes are described in the section
Mode Selection State.
Code:
programmed, expressed as the decimal equivalent of the binary value.
The LSB of a register is denoted as bit 0.
3
Linear Hall Effect Sensor ICs
The number used to identify the register and the bitfield to be
R
4.7 k
LOAD
:
Testing the results is the only valid method
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Output
C
1 nF
LOAD
13