Datasheets
A3938SLDTR-T by: Allegro MicroSystems LLC

Brushless DC Motor Controller, PDSO38, LEAD FREE, MO-153BD-1, TSSOP-38

Part Details for A3938SLDTR-T by Allegro MicroSystems LLC

Results Overview of A3938SLDTR-T by Allegro MicroSystems LLC

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Applications Education and Research Aerospace and Defense Agriculture Technology Robotics and Drones

A3938SLDTR-T Information

A3938SLDTR-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.

Price & Stock for A3938SLDTR-T

Part # Distributor Description Stock Price Buy
DISTI # 08J5861
Newark Ic, motor Controller, tssop,38Pin Rohs Compliant: Yes |Allegro Microsystems A3938SLDTR-T RoHS: Compliant Min Qty: 4000 Package Multiple: 1 Date Code: 0 Container: Reel 0
Buy Now
Win Source Electronics Three-Phase Power MOSFET Controller 38-Pin TSSOP T/R / IC MOTOR CONTROLLER PAR 38TSSOP 15100
  • 9 $6.1948
  • 20 $5.0830
  • 31 $4.9241
  • 42 $4.7653
  • 55 $4.6064
  • 73 $4.1299
$4.1299 / $6.1948 Buy Now

Part Details for A3938SLDTR-T

A3938SLDTR-T CAD Models

A3938SLDTR-T Part Data Attributes

A3938SLDTR-T Allegro MicroSystems LLC
Buy Now Datasheet
Compare Parts:
A3938SLDTR-T Allegro MicroSystems LLC Brushless DC Motor Controller, PDSO38, LEAD FREE, MO-153BD-1, TSSOP-38
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ALLEGRO MICROSYSTEMS LLC
Part Package Code TSSOP
Package Description TSSOP, TSSOP38,.25,20
Pin Count 38
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-G38
JESD-609 Code e3
Length 9.7 mm
Moisture Sensitivity Level 2
Number of Functions 1
Number of Terminals 38
Operating Temperature-Max 85 °C
Operating Temperature-Min -20 °C
Package Body Material PLASTIC/EPOXY
Package Code TSSOP
Package Equivalence Code TSSOP38,.25,20
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.2 mm
Supply Current-Max (Isup) 8 mA
Supply Voltage-Max (Vsup) 50 V
Supply Voltage-Min (Vsup) 18 V
Surface Mount YES
Temperature Grade OTHER
Terminal Finish MATTE TIN
Terminal Form GULL WING
Terminal Pitch 0.5 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 40
Width 4.4 mm

Alternate Parts for A3938SLDTR-T

This table gives cross-reference parts and alternative options found for A3938SLDTR-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 A3938SLDTR-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
A3938SLD-T Allegro MicroSystems LLC Check for Price Brushless DC Motor Controller, PDSO38, LEAD FREE, MO-153BD-1, TSSOP-38 A3938SLDTR-T vs A3938SLD-T
A3932SLD-T Allegro MicroSystems LLC Check for Price Brushless DC Motor Controller, BIPolar, PDSO38, LEAD FREE, MO-153BD-1, TSSOP-38 A3938SLDTR-T vs A3932SLD-T

A3938SLDTR-T Related Parts

A3938SLDTR-T Frequently Asked Questions (FAQ)

  • A good PCB layout for the A3938SLDTR-T should minimize noise and ensure good thermal dissipation. Keep the device away from high-current carrying traces, and use a solid ground plane to reduce noise. Use thermal vias to dissipate heat, and ensure good airflow around the device.

  • The sense resistor value depends on the maximum current you expect in your application. A smaller sense resistor value will provide better accuracy at lower currents, while a larger value will provide better accuracy at higher currents. Consult the datasheet for a formula to calculate the optimal sense resistor value based on your application's requirements.

  • The A3938SLDTR-T is rated for operation from -40°C to 150°C (TJ). However, the device's performance and accuracy may degrade at extreme temperatures. Ensure good thermal management and consider derating the device's performance at high temperatures.

  • To ensure EMC, follow proper PCB layout and design guidelines, such as keeping sensitive analog traces away from noisy digital traces. Use shielding and filtering as needed, and ensure good grounding and decoupling. Consult the datasheet and relevant EMC standards for more information.

  • The A3938SLDTR-T is designed to operate from a single 5V supply. However, the device can tolerate a range of input voltages from 4.5V to 5.5V. Ensure that the input voltage is stable and well-regulated to ensure optimal performance.

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