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Brushless DC Motor Controller, PDSO28, 4.40 X 9.70 MM, 1.20MM HEIGHT, LEAD FREE, TSSOP-28
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
A4937KLPTR-A-T by Allegro MicroSystems LLC is a Motion Control Electronic.
Motion Control Electronics are under the broader part category of Signal Circuits.
A signal is an electronic means of transmitting information, either as an analog signal with continuous values or a digital signal with discrete values. Signals are used in various systems and networks. Read more about Signal Circuits on our Signal Circuits part category page.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
620-1871-1-ND
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DigiKey | IC GATE DRVR HALF-BRIDGE 28TSSOP Min Qty: 1 Lead time: 20 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) |
8000 In Stock |
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$2.0500 / $4.1000 | Buy Now |
DISTI #
250-A4937KLPTR-A-T
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Mouser Electronics | Motor / Motion / Ignition Controllers & Drivers AUTOMOTIVE 3-PHASE MOSFET DRIVER w/SERIAL CTRL RoHS: Compliant | 7990 |
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$2.0500 / $4.1000 | Buy Now |
DISTI #
A4937KLPTR-A-T
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Avnet Silica | ThreePhase MOSFET Driver 55V to 50V 28Pin TSSOP EP TR (Alt: A4937KLPTR-A-T) RoHS: Compliant Min Qty: 12000 Package Multiple: 12000 Lead time: 20 Weeks, 0 Days | Silica - 0 |
|
Buy Now |
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A4937KLPTR-A-T
Allegro MicroSystems LLC
Buy Now
Datasheet
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Compare Parts:
A4937KLPTR-A-T
Allegro MicroSystems LLC
Brushless DC Motor Controller, PDSO28, 4.40 X 9.70 MM, 1.20MM HEIGHT, LEAD FREE, TSSOP-28
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Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Obsolete | |
Ihs Manufacturer | ALLEGRO MICROSYSTEMS LLC | |
Package Description | 4.40 X 9.70 MM, 1.20MM HEIGHT, LEAD FREE, TSSOP-28 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Samacsys Manufacturer | Allegro Microsystems | |
Analog IC - Other Type | 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 Form | GULL WING | |
Terminal Position | DUAL |
This table gives cross-reference parts and alternative options found for A4937KLPTR-A-T. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of A4937KLPTR-A-T, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
Part Number | Manufacturer | Composite Price | Description | Compare |
---|---|---|---|---|
A4939KLPTR-3-T | Allegro MicroSystems LLC | Check for Price | Brushless DC Motor Controller, PDSO28, 9.70 X 4.40 MM, 1.20 MM HEIGHT, MO-153AET, LEAD FREE, TSSOP-28 | A4937KLPTR-A-T vs A4939KLPTR-3-T |
A4939KLPTR-5-T | Allegro MicroSystems LLC | Check for Price | Brushless DC Motor Controller, PDSO28, 9.70 X 4.40 MM, 1.20 MM HEIGHT, MO-153AET, LEAD FREE, TSSOP-28 | A4937KLPTR-A-T vs A4939KLPTR-5-T |
A4935KJP-T | Allegro MicroSystems LLC | Check for Price | Brushless DC Motor Controller, PQFP48, LEAD FREE, MS-026BBCHD, LQFP-48 | A4937KLPTR-A-T vs A4935KJP-T |
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.