LM628N-6/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM628N-6/NOPB is a precision motion controller designed for use in various applications that require accurate and reliable control of motors or other mechanical systems.

Characteristics: - High precision: The LM628N-6/NOPB offers precise control over motor movements, allowing for smooth and accurate positioning. - Versatility: It can be used with different types of motors, including DC motors, stepper motors, and servo motors. - Robustness: The IC is designed to withstand harsh operating conditions and provide long-term reliability. - Easy integration: The LM628N-6/NOPB can be easily integrated into existing systems, thanks to its compact size and compatibility with standard interfaces. - Low power consumption: The IC is designed to operate efficiently, minimizing power consumption and extending battery life in portable applications.

Package: The LM628N-6/NOPB is available in a small outline package (SOP) with 16 pins.

Essence: The LM628N-6/NOPB is a key component in motion control systems, enabling precise and efficient control of motors or mechanical systems.

Packaging/Quantity: The LM628N-6/NOPB is typically sold in reels containing 250 units.

Specifications

• Supply voltage: 4.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Output current: Up to 1A
• Control interface: SPI (Serial Peripheral Interface)
• Resolution: 16-bit
• Maximum step rate: 500 kHz

Pin Configuration

The LM628N-6/NOPB features the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Power supply voltage | | 2 | GND | Ground | | 3 | CS | Chip select | | 4 | SCLK | Serial clock input | | 5 | SDI | Serial data input | | 6 | SDO | Serial data output | | 7 | RESET | Reset input | | 8-15 | NC | No connection | | 16 | OUT | Motor control output |

Functional Features

The LM628N-6/NOPB offers the following functional features:

1. Position Control: It provides precise control over motor position, allowing for accurate positioning in various applications.
2. Speed Control: The IC enables smooth and adjustable speed control of motors, ensuring optimal performance.
3. Acceleration/Deceleration Control: It allows for smooth acceleration and deceleration of motors, preventing sudden jerks or stops.
4. Error Detection and Correction: The LM628N-6/NOPB incorporates error detection and correction mechanisms to ensure reliable operation and minimize errors.
5. Protection Mechanisms: It includes built-in protection features such as overcurrent protection and thermal shutdown, safeguarding the motor and the IC from damage.

Advantages and Disadvantages

Advantages: - High precision control - Versatile compatibility with different motor types - Robust and reliable operation - Easy integration into existing systems - Low power consumption

Disadvantages: - Limited maximum step rate compared to some other motion controllers - Requires an external power supply

Working Principles

The LM628N-6/NOPB operates based on the principle of pulse-width modulation (PWM). It generates a series of pulses with varying widths to control the motor's speed and position. By adjusting the pulse width and frequency, the IC regulates the motor's rotation and position accurately.

Detailed Application Field Plans

The LM628N-6/NOPB finds applications in various fields, including:

1. Robotics: It is used in robotic systems for precise control of robot arms, grippers, and other mechanical components.
2. CNC Machines: The IC enables accurate control of stepper motors in computer numerical control (CNC) machines, ensuring precise movement and positioning of cutting tools.
3. Industrial Automation: It is employed in industrial automation systems for controlling conveyor belts, assembly line robots, and other motion-based processes.
4. Medical Equipment: The LM628N-6/NOPB is utilized in medical devices such as surgical robots and imaging equipment, where precise motion control is crucial.
5. Automotive Applications: It can be found in automotive systems for controlling motors in power windows, seat adjustments, and other mechanisms requiring precise control.

Detailed and Complete Alternative Models

1. Texas Instruments DRV8825: A high-current stepper motor driver with advanced features for precise motion control.
2. Allegro A4988: A versatile motor driver IC suitable for various