A4940KLPTR-T

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A4940KLPTR-T

+BOM

IC MOTOR DRIVER 5.5V-50V 24TSSOP

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Specifications

Attribute Value
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
MotorType-ACDC Brushed DC
Function Controller - Commutation, Direction Management
OutputConfiguration Pre-Driver - Half Bridge (2)
Interface On/Off
Technology Power MOSFET
Applications Automotive
Voltage-Supply 5.5V ~ 50V
OperatingTemperature -40°C ~ 150°C (TA)
MountingType Surface Mount
Package/Case 24-TSSOP (0.173, 4.40mm Width) Exposed Pad

Overview

Description

The A4940KLPTR-T is an integrated circuit designed for motor control applications. Manufactured by Allegro MicroSystems, this device is specifically engineered to drive brushless DC (BLDC) motors. It typically includes features like a built-in gate driver, which facilitates the control of high-side and low-side N-channel MOSFETs, allowing for efficient motor operation. The A4940KLPTR-T also incorporates protection mechanisms such as under-voltage lockout and over-current protection, ensuring reliable and safe operation in various environments.
One of its key attributes is its ability to support a wide range of operating voltages, accommodating different power supply conditions in automotive and industrial applications. Its compact design allows for integration into space-constrained systems without compromising performance. Furthermore, the device usually interfaces seamlessly with microcontrollers, enabling precise control over motor speed and direction, which is crucial for applications ranging from automotive power steering systems to industrial automation.
Overall, the A4940KLPTR-T offers a robust solution for efficient and reliable motor control in a compact package.

Equivalent

The Allegro A4940KLPTR-T is a three-phase motor driver IC. Equivalent products include the Texas Instruments DRV8313, STMicroelectronics L6235, and ON Semiconductor LV8549MC. These alternatives offer similar functionalities, such as driving brushless DC motors in various applications. When choosing an equivalent, always verify the specifications, as pin configurations and other electrical characteristics may differ.

Features

The A4940KLPTR-T is a single full-bridge motor driver IC designed for driving DC motors and bipolar stepper motors. Key features include:
1. Full-Bridge Control: Capable of driving a single DC motor or one phase of a bipolar stepper motor with a full-bridge output stage.
2. Wide Voltage Range: Operates over a broad supply voltage range, making it versatile for various applications.
3. Protection Features: Includes built-in protections such as thermal shutdown, undervoltage lockout, and crossover-current protection to enhance reliability and durability.
4. Low Power Consumption: Designed for efficient power usage, it minimizes power loss during operation.
5. Compact Package: Available in a compact surface-mount package, ideal for space-constrained applications.
6. PWM Control: Supports pulse-width modulation (PWM) control for precise motor speed and torque management.
7. Current Regulation: Features current regulation capabilities to maintain consistent motor performance.
The A4940KLPTR-T is well-suited for applications involving precision motor control, such as in robotics, industrial automation, and consumer electronics, where efficient and reliable motor operation is required.

Pinout

The A4940KLPTR-T is an automotive-qualified motor driver IC designed by Allegro MicroSystems. It typically comes in a small-outline package. The device has a pin count of 8. These pins are used for various functions essential to its operation as a motor driver. The pin functions generally include power supply connections, inputs for controlling the motor, outputs for driving the motor, and ground connections. Specific functions can include connections for PWM control, fault detection, and diagnostics. For precise details on the function of each pin, it is important to refer to the specific datasheet provided by the manufacturer, as this will offer comprehensive information on how each pin should be used in specific applications.

Manufacturer

The A4940KLPTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in developing and manufacturing high-performance power and sensor integrated circuits. They are a leading provider of solutions for motion control, energy-efficient systems, and automotive and industrial applications. Allegro MicroSystems focuses on creating advanced semiconductor products that are used in a variety of applications, including automotive, industrial, and consumer markets. Their expertise lies in magnetic sensor ICs and power ICs, which are critical components in many electronic systems.

Application

The A4940KLPTR-T is a motor driver IC primarily used for driving DC motors in a variety of applications. Its key application areas include automotive systems, such as window lifts, seat adjustments, and mirror controls, due to its robust design and thermal protection features. It's also used in consumer electronics for motorized mechanisms like camera focus and zoom controls, as well as in industrial automation for conveyor systems and robotic actuators. The IC's ability to manage high current loads efficiently makes it suitable for both low- and high-power motor control applications, offering flexibility and reliability in compact and energy-sensitive designs.

Package

The A4940KLPTR-T is typically available in a surface mount package, specifically the SOIC (Small Outline Integrated Circuit) with 16 pins. This type of package is designed for ease of use in automated PCB assembly processes.

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