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A1351
High Precision Linear Hall Effect Sensor IC
 with a Push/Pull, Pulse Width Modulated Output
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Selection Guide
1
Part Number
Ambient Operating Temperature
Packing
2
A1351KKTTN-T
40癈 to 125癈
4000 pieces per 13-in. reel
1
All variants are programmable for unidirectional or bidirectional use.
2
Contact Allegro for additional packing options.
Terminal List Table
Number    Name
Description
1
VCC   Input power supply; use bypass capacitor to connect to ground
2
PWMOUT  Pulse width modulated output signal; also used for programming
3
NC    Not connected
4
GND   Ground
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating    Units
Forward Supply Voltage
V
CC
16
V
Reverse Supply Voltage
V
RCC
16
V
Forward PWM Output Voltage
V
PWMOUT
28
V
Reverse PWM Output Voltage
V
RPWMOUT
0.2
V
Ambient Operating Temperature
T
A
Range K
40 to 125    癈
Storage Temperature
T
stg
65 to 165    癈
Junction Temperature
T
J
(max)
165
癈
An internal filter of approximately 150 Hz is used to achieve 11 bits
of output resolution.
Key applications for the A1351 include battery current sensing,
exhaust gas return (EGR), throttle position, ride height and seat
belt tensioning systems.
The A1351 is provided in an extremely thin case (1 mm thick),
4-pin SIP (single in-line package, suffix KT) that is lead (Pb) free,
with 100% matte tin leadframe plating.
Description (continued)
2
3  4
1
Pin-out Diagram
Branded
Face
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