4.40 X 9.70 MM, 1.20MM HEIGHT, LEAD FREE, TSSOP-28
ECCN Code:
EAR99
HTS Code:
8542.39.00.60
Manufacturer:
Allegro MicroSystems LLC
YTEOL:
0
Analog IC - Other Type:
3-PHASE BRUSHLESS DC MOTOR CONTROLLER
JESD-30 Code:
R-PDSO-G28
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Terminals:
28
Operating Temperature-Max:
150 °C
Operating Temperature-Min:
-40 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
SOP
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE
Surface Mount:
YES
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Tin (Sn)
Terminal Form:
GULL WING
Terminal Position:
DUAL
A4937KLPTR-A-T Frequently Asked Questions (FAQs)
A good PCB layout for optimal thermal performance would be to have a solid copper plane on the bottom layer of the PCB, connected to the GND pin of the IC. This helps to dissipate heat efficiently. Additionally, it's recommended to have a small thermal relief pattern around the IC to prevent thermal shorts.
To ensure reliable operation in high-vibration environments, it's recommended to use a robust PCB design with a secure mounting system for the IC. Additionally, consider using a conformal coating to protect the PCB from environmental factors. It's also important to follow proper soldering and assembly techniques to prevent mechanical stress on the IC.
The recommended decoupling capacitors for the A4937KLPTR-A-T are 10uF to 22uF ceramic capacitors with a voltage rating of 10V to 16V, placed as close to the IC as possible. These capacitors help to filter out noise and ensure stable operation.
To troubleshoot issues with the IC's output current, first check the input voltage and ensure it's within the recommended range. Next, verify that the output pins are not shorted to GND or VCC. Check the PCB layout for any thermal issues or shorts. If the issue persists, try replacing the IC or consulting the datasheet for more troubleshooting steps.
The A4937KLPTR-A-T has a maximum junction temperature of 150°C. To ensure reliable operation, it's recommended to keep the IC's junction temperature below 125°C. This can be achieved by using a heat sink, improving air flow, or reducing the IC's power dissipation.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
A4937KLPTR-A-T Overview
Use the download button to access the A4937KLPTR-A-T schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like A4937,
or try a keyword search, such as Motion Control Electronics
