A2982ELW

Product Overview

Category

A2982ELW belongs to the category of integrated circuits (ICs).

Use

The A2982ELW IC is primarily used for motor control applications.

Characteristics

• The A2982ELW is a high-performance, dual full-bridge motor driver.
• It is designed to drive bipolar stepper and DC motors.
• The IC operates at a wide voltage range, making it suitable for various applications.
• It offers low power consumption and high efficiency.
• The A2982ELW features built-in protection mechanisms such as thermal shutdown and overcurrent detection.

Package

The A2982ELW is available in a small outline package (SOP) with 20 pins.

Essence

The essence of the A2982ELW lies in its ability to provide efficient and reliable motor control for a wide range of applications.

Packaging/Quantity

The A2982ELW is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 4.5V to 36V
• Output Current: Up to 2A per channel
• Operating Temperature Range: -40°C to +85°C
• Logic Input Voltage: 3.3V to 5V
• Maximum PWM Frequency: 100kHz

Detailed Pin Configuration

The A2982ELW IC has a total of 20 pins. The pin configuration is as follows:

1. VCC1: Power supply for logic circuitry (3.3V to 5V)
2. GND1: Ground for logic circuitry
3. IN1A: Input control signal for Channel 1, Phase A
4. IN1B: Input control signal for Channel 1, Phase B
5. VREF1: Reference voltage for Channel 1
6. OUT1A: Output for Channel 1, Phase A
7. OUT1B: Output for Channel 1, Phase B
8. GND2: Ground for motor power supply
9. VM: Motor power supply voltage (4.5V to 36V)
10. OUT2A: Output for Channel 2, Phase A
11. OUT2B: Output for Channel 2, Phase B
12. VREF2: Reference voltage for Channel 2
13. IN2B: Input control signal for Channel 2, Phase B
14. IN2A: Input control signal for Channel 2, Phase A
15. GND3: Ground for logic circuitry
16. VCC2: Power supply for logic circuitry (3.3V to 5V)
17. VCP: Charge pump capacitor connection
18. CP1: Charge pump capacitor connection
19. CP2: Charge pump capacitor connection
20. VBB: Bootstrap capacitor connection

Functional Features

• Dual full-bridge motor driver capable of driving bipolar stepper and DC motors.
• Built-in protection mechanisms such as thermal shutdown and overcurrent detection ensure safe operation.
• Low power consumption and high efficiency make it suitable for battery-powered applications.
• Wide operating voltage range allows for versatile use in various systems.
• Fast decay and synchronous rectification techniques improve motor performance.

Advantages and Disadvantages

Advantages

• High-performance motor control with efficient power utilization.
• Built-in protection mechanisms enhance system reliability.
• Versatile operating voltage range enables compatibility with different power sources.
• Compact SOP package facilitates easy integration into designs.

Disadvantages

• Limited maximum PWM frequency may not be suitable for certain high-speed applications.
• Lack of built-in diagnostic features for fault detection and reporting.

Working Principles

The A2982ELW operates by receiving control signals through its input pins (IN1A, IN1B, IN2A, IN2B) to determine the desired motor operation. These control signals are then processed internally to drive the corresponding output pins (OUT1A, OUT1B, OUT2A, OUT2B) accordingly. The IC utilizes advanced techniques such as fast decay and synchronous rectification to optimize motor performance and efficiency.

Detailed Application Field Plans

The A2982ELW finds applications in various fields, including but not limited to:

1. Robotics: The IC can be used to control motors in robotic systems, enabling precise movement and manipulation.
2. Automotive: It can be employed in automotive applications for controlling window regulators, seat adjustments, and other motor-driven mechanisms.
3. Industrial Automation: The A2982ELW is suitable for motor control in industrial automation systems, such as conveyor belts and robotic arms.
4. Consumer Electronics: It can be utilized in consumer electronics devices like printers, scanners, and home appliances that require motor control.

Detailed