Part Details for A3977SLP-T by Allegro MicroSystems LLC
Results Overview of A3977SLP-T by Allegro MicroSystems LLC
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (1 replacement)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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.
Applications
Education and Research
Aerospace and Defense
Agriculture Technology
Automotive
Robotics and Drones
A3977SLP-T Information
A3977SLP-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 A3977SLP-T
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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Quest Components | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO28 | 33 |
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$2.8470 / $4.2705 | Buy Now |
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Win Source Electronics | IC MTR DRV BIPOLR 3-5.5V 28TSSOP / MICROSTEPPING DMOS DRIVER WITH TRANSLATOR | 410 |
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$2.6541 / $3.9811 | Buy Now |
US Tariff Estimator: A3977SLP-T by Allegro MicroSystems LLC
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for A3977SLP-T
A3977SLP-T CAD Models
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A3977SLP-T Part Data Attributes
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A3977SLP-T
Allegro MicroSystems LLC
Buy Now
Datasheet
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A3977SLP-T
Allegro MicroSystems LLC
Stepper Motor Controller, 2.5A, NMOS, PDSO28
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | TSSOP | |
| Package Description | Htssop, Tssop28,.25 | |
| Pin Count | 28 | |
| Reach Compliance Code | Compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Additional Feature | Also Requires A 8v To 35v Supply | |
| Analog IC - Other Type | Stepper Motor Controller | |
| JESD-30 Code | R-PDSO-G28 | |
| JESD-609 Code | e3 | |
| Length | 9.7 Mm | |
| Moisture Sensitivity Level | 2 | |
| Number of Functions | 1 | |
| Number of Terminals | 28 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -20 °C | |
| Output Current-Max | 2.5 A | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | HTSSOP | |
| Package Equivalence Code | TSSOP28,.25 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline, Heat Sink/Slug, Thin Profile, Shrink Pitch | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.2 Mm | |
| Supply Voltage-Max (Vsup) | 5.5 V | |
| Supply Voltage-Min (Vsup) | 3 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | Yes | |
| Technology | Nmos | |
| Temperature Grade | Other | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 0.65 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 40 | |
| Width | 4.4 Mm |
Alternate Parts for A3977SLP-T
This table gives cross-reference parts and alternative options found for A3977SLP-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 A3977SLP-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 |
|---|---|---|---|---|
| A3977SLPTR-T | Allegro MicroSystems LLC | $3.0362 | Stepper Motor Controller, 2.5A, NMOS, PDSO28 | A3977SLP-T vs A3977SLPTR-T |
A3977SLP-T Frequently Asked Questions (FAQ)
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The A3977SLP-T can operate from -20°C to 85°C (TJ) and is suitable for automotive applications.
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The A3977SLP-T requires a single 5 V supply (VCC) and a separate logic supply (VDD) for the internal logic and interface. Ensure both supplies are properly decoupled and filtered.
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The VREF pin is used to set the internal reference voltage for the device. It should be connected to a stable voltage source, typically VCC, through a resistor divider network.
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The A3977SLP-T can be configured for half-bridge or H-bridge operation by connecting the appropriate pins (e.g., HBEN, LBEN, and DEAD) and setting the input logic levels accordingly.
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The dead time between the high-side and low-side switches is programmable through the DEAD pin and can be set to a minimum of 100 ns.