AEC-Q100, SHORT CIRCUIT PROTECTION, REVERSE BATTERY PROTECTION
Body Breadth:
1.91 mm
Body Height:
1 mm
Body Length or Diameter:
2.98 mm
Housing:
PLASTIC
Hysteresis:
2.5 mT
Input Mode:
UNIPOLAR
JESD-609 Code:
e3
Magnetic Field Range-Max:
20 mT
Magnetic Field Range-Min:
11 mT
Mounting Feature:
SURFACE MOUNT
Number of Terminals:
3
Operating Current-Max:
4 mA
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Output:
OPEN-DRAIN
Output Circuit Type:
TRANSISTOR
Output Current-Max:
60 mA
Output Range:
30-60mA
Output Type:
CURRENT OUTPUT
Package Body Material:
PLASTIC/EPOXY
Package Equivalence Code:
TO-236
Package Shape/Style:
RECTANGULAR
Screening Level:
AEC-Q100
Sensors/Transducers Type:
MAGNETIC FIELD SENSOR,HALL EFFECT
Supply Voltage-Max:
24 V
Supply Voltage-Min:
3 V
Surface Mount:
YES
Technology:
BICMOS
Terminal Finish:
Tin (Sn)
Termination Type:
SOLDER
A1122ELHLX-T Frequently Asked Questions (FAQs)
Allegro provides a recommended PCB layout in the application note AN296068, which includes guidelines for trace routing, component placement, and thermal management to ensure optimal performance and thermal dissipation.
The A1122ELHLX-T has an output voltage swing that is dependent on the supply voltage and the sense resistor value. To handle this, ensure that the output voltage swing is within the specified range of the downstream circuitry, and consider using a voltage regulator or level shifter if necessary.
The maximum allowable current through the sense resistor (Rs) is dependent on the power rating of the resistor and the operating conditions. As a general guideline, ensure that the power dissipation of the sense resistor does not exceed its rated power rating, and consider using a higher-power resistor if necessary.
Calibration of the A1122ELHLX-T involves adjusting the offset and gain of the device to match the specific application requirements. Allegro provides a calibration procedure in the datasheet, which involves applying a known current to the sense resistor and adjusting the offset and gain registers accordingly.
The A1122ELHLX-T has a specified temperature range of -40°C to 150°C, and its accuracy is affected by temperature variations. To minimize temperature-related errors, ensure that the device is operated within the specified temperature range, and consider using temperature compensation techniques or thermistors to monitor and adjust for temperature variations.
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A1122ELHLX-T Overview
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