A1351KKTTN-T Allegro Microsystems Inc, A1351KKTTN-T Datasheet - Page 17

• 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
Locking the Device
After the desired code for each parameter is programmed, the
device can be locked to prevent further programming of any
parameters. See the Lock Mode section for lock pulse sequence.
Additional Guidelines
The additional guidelines in this section should be followed to
ensure the proper behavior of these devices:
• A 0.1 μF blowing capacitor, C
the PWMOUT pin and the GND pin during programming, to
ensure enough current is available to blow fuses.
Figure 3. Example of code 5 broken into its binary components,
equaling code 4 and code 1.
Figure 4. Example of programming pulses applied to the PWMOUT pin that result in permanent parameter settings. In this example, the register
corresponding to key 1 is selected (twice) and code 5 is addressed and blown (in two stages).
Address Code Format
Address Code Format
Bit Field Selection
Code in Binary
Fuse Blowing
Fuse Blowing
Target Bits
BLOW
Code 4
(Decimal Equivalents)
(Decimal Equivalent)
Bit 2
with a Push/Pull, Pulse Width Modulated Output
, must be mounted between
(Binary)
Code 5
1 0 1
Code 1
High Precision Linear Hall Effect Sensor IC
Bit 0
• The final application capacitance, C
• The blowing capacitor, C
• The power supply used for programming must be capable of
• Be careful to observe the t
• The following programming order is recommended:
measuring the output duty cycle during programming. (The
maximum load capacitance is 14.7 nF for proper operation.)
measurements; it should only be applied when addressing bit
fields and when blowing fuses.
delivering at least 26 V and 300 mA.
down the device after blowing each bit.
1. PWM carrier frequency
2. Coarse D
3. Sens
4. D
5. LOCK (only after all other parameters have been
programmed and validated, because this prevents any further
programming of the device)
(Q)
(Q)
BLOW
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
LOW
, should be removed during
delay time before powering
L
, should be used when
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