A1351KKTTN-T Allegro Microsystems Inc, A1351KKTTN-T Datasheet - Page 18

• Manufacturer Part Number: A1351KKTTN-T
• Description: IC,HALL-EFFECT SENSOR,SINGLE-ENDED,BICMOS,SIP,4PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Linear - Unipolar, Bipolarr

Specifications of A1351KKTTN-T

• Sensing Range: 0.055% ~ 0.095% DC/G
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 10mA
• Current - Output (max): 1mA
• Output Type: Digital, Push-Pull
• Features: High Precision
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A1351
Try Mode
Try mode allows a single programmable parameter to be tested
without permanently setting its value. (Note that multiple param-
eters cannot be tested simultaneously with the A1351 device.)
Try mode is a required step of parameter blowing. (See the Blow
Mode section for additional information.) After powering the
VCC supply, select the desired parameter register and address its
bit field. When addressing the bit field, each V
ments the value of the parameter register, up to the maximum
possible code (see the Programming Logic table). The addressed
parameter value remains stored in the device even after the
programming drive voltage is removed from the PWMOUT pin,
allowing the value to be measured. Note that for accurate pro-
gramming, the blow capacitor, C
the application load capacitance, C
surement. It is not possible to decrement the value of the register
without resetting the parameter bit field. To reset the bit field, and
BLOW
L
, during output voltage mea-
with a Push/Pull, Pulse Width Modulated Output
, should be replaced with
High Precision Linear Hall Effect Sensor IC
PM
pulse incre-
Programming Modes
thus the value of the programmable parameter, cycle the supply
(VCC) voltage.
Blow Mode
After the required value of the programmable parameter is found
using Try mode, its corresponding code should be blown to make
its value permanent. To do this, select the required parameter
register, and address and blow each required bit separately (as
described in the Fuse Blowing section). The supply must be
cycled between blowing each bit of a given code. After a bit is
blown, cycling the supply will not reset its value.
Lock Mode
To lock the device, address the LOCK bit and apply a blow pulse
with C
512. After locking the device, no future programming of any
parameter is possible.
BLOW
in place. The LOCK bit is located in register 5, code
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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