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HomeProductsIntegrated Circuits (ICs)PMIC - Motor Drivers, ControllersA3948SLB
A3948SLB Image
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A3948SLB - Allegro MicroSystems

Manufacturer Part Number
A3948SLB
Manufacturer
Allegro MicroSystems
Allelco Part Number
32D-A3948SLB
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC MOTOR DRIVER 4.5V-5.5V 24SOIC
Package
24-SOIC
Data sheet
1.A3948SLB.pdf ...

Datasheets

A3948.pdf
Our certification
In stock: 9360

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Specifications

A3948SLB Tech Specifications
Allegro MicroSystems - A3948SLB technical specifications, attributes, parameters and parts with similar specifications to Allegro MicroSystems - A3948SLB

Product Attribute Attribute Value  
Manufacturer Allegro MicroSystems  
Voltage - Supply 4.5V ~ 5.5V  
Voltage - Load 20V ~ 50V  
Technology DMOS  
Supplier Device Package 24-SOIC  
Step Resolution -  
Series -  
Package / Case 24-SOIC (0.295", 7.50mm Width)  
Package Tube  
Output Configuration Half Bridge (2)  
Product Attribute Attribute Value  
Operating Temperature -20°C ~ 150°C (TJ)  
Mounting Type Surface Mount  
Motor Type - Stepper -  
Motor Type - AC, DC Brushed DC  
Interface Serial  
Function Driver - Fully Integrated, Control and Power Stage  
Current - Output 1.5A  
Base Product Number A3948  
Applications General Purpose  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

A3948SLB

Manufacturer

allegro-microsystems

Introduction

The A3948SLB is a Brushed DC motor driver designed to manage power stages in a compact and efficient manner.

Product Features and Performance

Integrated control and power stage

Half Bridge output configuration

Serial interface

DMOS technology

Supports 1.5A output current

Adaptable power supply range from 4.5V to 5.5V

Handles load voltages from 20V to 50V

High operating temperature range from -20°C to 150°C

Product Advantages

Compact integration reduces external component necessity

High-temperature tolerance enhances durability

Flexible voltage specifications cater to a range of power systems

Key Technical Parameters

Current Output: 1.5A

Supply Voltage: 4.5V to 5.5V

Load Voltage: 20V to 50V

Operating Temperature: -20°C to 150°C

Quality and Safety Features

Robust DMOS technology enhances reliability and longevity.

Compatibility

Designed primarily for General Purpose applications.

Application Areas

General Purpose use in consumer and industrial electronics requiring Brushed DC motor control.

Product Lifecycle

Obsolete product status

Users should verify replacement or upgrade availability if continuation is needed.

Several Key Reasons to Choose This Product

High integration facilitates compact and efficient system design

Durable under extreme temperature conditions for reliability in harsh environments

Flexible voltage compatibility allowing ease of use with different electronic systems

Obsolescence status demands thorough consideration of lifecycle management plans.

Parts with Similar Specifications

The three parts on the right have similar specifications to Allegro MicroSystems A3948SLB

Product Attribute A3948SLBTR A3949SLBTR A3949SLB A3948SB
Part Number A3948SLBTR A3949SLBTR A3949SLB A3948SB
Manufacturer Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems
Voltage - Supply - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Output Configuration - - - -
Technology - - - -
Applications - - - -
Interface - - - -
Function - - - -
Voltage - Load - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Step Resolution - - - -
Motor Type - AC, DC - - - -
Motor Type - Stepper - - - -
Current - Output - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

A3948SLB Datasheet PDF

Download A3948SLB pdf datasheets and Allegro MicroSystems documentation for A3948SLB - Allegro MicroSystems.

Datasheets
A3948.pdf
PCN Packaging
Tape Change 27/Jan/2023.pdf

Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

Write a Review

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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A3948SLB Image

A3948SLB

Allegro MicroSystems
32D-A3948SLB

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