LV8747T-TLM-E

Product Overview

Category: Integrated Circuit (IC)

Use: LV8747T-TLM-E is a motor driver IC designed for controlling the speed and direction of stepper motors. It is commonly used in various applications that require precise motor control, such as robotics, 3D printers, CNC machines, and industrial automation.

Characteristics: - High-performance motor driver with advanced features - Supports both bipolar and unipolar stepper motors - Wide operating voltage range (from 9V to 32V) - Built-in protection circuits for overcurrent, overtemperature, and undervoltage - Compact package for easy integration into different systems

Package: LV8747T-TLM-E is available in a small surface-mount package, making it suitable for space-constrained applications. The package type is typically QFN (Quad Flat No-leads) or similar.

Essence: The essence of LV8747T-TLM-E lies in its ability to provide precise and efficient control over stepper motors, enabling smooth and accurate movement in various applications.

Packaging/Quantity: LV8747T-TLM-E is usually sold in reels or tubes containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer or distributor.

Specifications

• Operating Voltage Range: 9V to 32V
• Output Current: Up to 2.5A per phase
• Control Interface: Step/Direction or PWM
• Microstepping Resolution: Up to 1/32 step
• Protection Features: Overcurrent, Overtemperature, Undervoltage lockout
• Thermal Shutdown: Yes
• Fault Detection Outputs: Yes
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LV8747T-TLM-E IC has the following pin configuration:

1. VCC - Power supply voltage
2. GND - Ground reference
3. STEP - Step input for controlling motor movement
4. DIR - Direction input for controlling motor rotation direction
5. ENABLE - Enable input for enabling/disabling the motor driver
6. MS1, MS2, MS3 - Microstepping selection inputs
7. FAULT - Fault detection output
8. OUT1A, OUT1B - Output pins for phase A of the stepper motor
9. OUT2A, OUT2B - Output pins for phase B of the stepper motor
10. VREF - Reference voltage for setting motor current

Functional Features

• High-resolution microstepping control for smooth motor movement
• Adjustable motor current through the VREF pin
• Built-in protection circuits for safe operation and motor protection
• Flexible control interface options (Step/Direction or PWM)
• Fault detection output for system monitoring and diagnostics
• Thermal shutdown feature to prevent overheating

Advantages and Disadvantages

Advantages: - Precise and efficient control over stepper motors - Wide operating voltage range allows compatibility with various power sources - Compact package for easy integration into different systems - Built-in protection features ensure safe operation and motor protection - High-resolution microstepping control enables smooth and accurate movement

Disadvantages: - Limited output current (up to 2.5A per phase), may not be suitable for high-power applications - Requires external components for proper motor control and power supply regulation

Working Principles

LV8747T-TLM-E operates by receiving control signals through the STEP and DIR inputs. The control signals determine the speed and direction of the connected stepper motor. The microstepping selection inputs (MS1, MS2, MS3) allow the user to choose the desired microstepping resolution, which affects the motor's smoothness and positional accuracy.

The motor current can be adjusted by setting the reference voltage (VREF) using an external resistor. This allows fine-tuning of the motor's torque and power consumption.

The IC also incorporates protection features such as overcurrent, overtemperature, and undervoltage lockout to ensure safe operation and prevent damage to the motor or the driver itself.

Detailed Application Field Plans

LV8747T-TLM-E finds applications in various fields that require precise motor control. Some of the common application areas include:

1. Robotics: LV8747T-TLM-E is used in robotic systems for controlling the movement of robotic arms, grippers, and other motorized components.
2. 3D Printers: The IC enables accurate positioning and smooth movement of the print head and build platform in 3D printers, resulting in high-quality prints.
3. CNC Machines: LV8747T-TLM-E is employed in computer numerical control (CNC) machines to control the motion of stepper motors driving the axes, allowing precise machining operations.
4. Industrial Automation: The IC is utilized in various industrial automation systems where precise motor control is