A1373LKB Allegro Microsystems Inc, A1373LKB Datasheet - Page 17

• Manufacturer Part Number: A1373LKB
• Description: IC SENSOR HALL EFFECT PREC 3-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Bipolar or Unipolar, Programmabler

Specifications of A1373LKB

• 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
• Magnetic Type: Unipolar
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Output Current: 10mA
• Package Type: SIP
• Pin Count: 3
• Mounting: Through Hole
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A1373
A1374
The mid voltage range, V
V
The low level, V
and bitfield addresses that are to be set. The device generates a
V
tion, V
In Try Value mode,the programming drive signal can be held
at 5 V or less if no code search is required. If a code search is
PH
PL
30
25
20
15
10
30
25
20
15
10
5
0
5
0
Try Mode
pulse on the falling edge of the mid-level to low-level transi-
and V
selected
A. Try Value Mode. Code search with drive signal held
at 5 V.
C. Blow Fuse Mode: Code 8 / bit 4 is programmed.
Mode Select
(Code 1)
PM
t
Mode Select
PHE
(Code 2)
t
PME
Blow
Fuse
mode
selected
to V
1
PL
1
and
pulses from each other.
2
Register Select
PL
t
PLA
1
(Code 3)
PL
.
Register Select
Sensitivity
Fine
register
selected
2
(Qvo Fine)
1
, pulse is used to increment the mode, register,
(Code 3)
t
PMA
(Sensitivity Coarse)
3
2
Sensitivity Fine selected
3
PM
1
, is a neutral level used to separate
1
2
Time (μs)
= Programming edge
2
Time (μs)
3
Bitfield Select
Bitfield Select
3
4
(Code 10)
(Code 8)
4
5
5
6
Bitfield 8
address
selected
6
7
10th address
selected
8
7
High Precision, Output Pin Programmable
9
8
10
Blow Fuse
Try Mode
selected
Mode Select
(Code 1)
1
}
}
}
}
V
V
V
V
V
V
PH
PM
PL
PH
PM
PL
required, then the output drive signal must be released to allow
the output level to be read for each bitfield increment (see panels
A and B, below).
To guarantee proper pulse recognition, each level must be held
for the predefined durations specified in the Programming Proto-
col Characteristics table. Failure to follow the specifications may
produce undefined results. Examples of common pulse trains are
shown in panels C and D, below.
30
25
20
15
10
30
25
20
15
10
5
0
5
0
B. Try Value Mode. Code search with drive signal released
after each V
increment.
D. Lock Device Mode. Device-level Lock Bit is programmed;
device programming is then permanently disabled.
2.0
Mode Select
Linear Hall Effect Sensor ICs
(Code 1)
t
PHE
1
t
V
V
PME
Mode Select
OUT
OUT
(Code 3)
Register Select
1
1
measurements
measurements
(Code 3)
PM
2
, allows output to be measured after each code
t
PLA
2
3
Lock
Device
mode
selected
t
PMA
Register Select
(Code 0)
2.1
3
1
Removing the output drive signal after each
V
PM
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
2.2
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
2
allows measurement of the output pin
Time (us)
2.3
Time (μs)
3
Bitfield Select
(Code 1)
2.4
Holding at V
Holding at V
V
V
will increment by 1 bitfield
will increment by 1 bitfield
Bitfield Select
4
(Code 10)
PL
PL
2.5
is required; dropping to V
is required; dropping to V
5
1
2.6
6
PM
PM
Lock (blow Lock Bit fuse)
2.7
is allowed when no
is allowed when no
t
7
PHP
2.8
8
2.9
9
PL
PL
3.0
10
1
Mode Select
(Code 1)
2.0
1
}
}
}
}
V
V
V
V
V
V
16
PH
PM
PL
PH
PM
PL