TB6674FAG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High performance, compact size, low power consumption
• Package: SOP-24
• Essence: TB6674FAG is a motor driver IC designed for controlling DC motors in various applications.
• Packaging/Quantity: Available in tape and reel packaging, with 250 units per reel.

Specifications

• Operating Voltage: 2.5V - 5.5V
• Output Current: 1.2A (continuous), 3.2A (peak)
• Number of Channels: Dual H-Bridge
• Control Interface: PWM (Pulse Width Modulation)
• Protection Features: Overcurrent protection, thermal shutdown

Pin Configuration

The TB6674FAG IC has a total of 24 pins. The pin configuration is as follows:

1. VCC1: Power supply voltage for logic circuit
2. IN1: Input control signal for Channel 1
3. IN2: Input control signal for Channel 2
4. GND1: Ground for logic circuit
5. OUT1: Output for Channel 1
6. OUT2: Output for Channel 2
7. VREF: Reference voltage output
8. VCC2: Power supply voltage for motor
9. VM: Motor power supply
10. STBY: Standby control input
11. SLP: Sleep control input
12. RST: Reset input
13. PWM1: PWM input for Channel 1
14. PWM2: PWM input for Channel 2
15. VREF2: Reference voltage output for Channel 2
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection
21. NC: No connection
22. NC: No connection
23. GND2: Ground for motor power supply
24. VCC3: Power supply voltage for internal circuit

Functional Features

• Dual H-Bridge configuration allows independent control of two DC motors.
• PWM input enables precise speed control.
• Overcurrent protection prevents damage to the IC and connected motors.
• Thermal shutdown feature protects against overheating.

Advantages and Disadvantages

Advantages: - High performance and reliability. - Compact size allows for space-saving designs. - Low power consumption for energy efficiency. - Overcurrent and thermal protection ensure safe operation.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Lack of built-in diagnostics or fault indication features.

Working Principles

The TB6674FAG motor driver IC operates by receiving control signals through the IN1, IN2, PWM1, and PWM2 pins. These signals determine the direction and speed of the connected DC motors. The IC amplifies and drives the motor currents through the OUT1 and OUT2 pins. It also provides protection against overcurrent and thermal conditions to prevent damage to the IC and motors.

Application Field Plans

The TB6674FAG motor driver IC finds applications in various fields, including:

1. Robotics: Controlling motor movements in robotic systems.
2. Automotive: Powering window regulators, seat adjustments, and other motorized components.
3. Industrial Automation: Driving conveyor belts, pumps, and other industrial machinery.
4. Consumer Electronics: Operating fans, small appliances, and toys.
5. Medical Devices: Controlling motorized equipment in medical devices.

Alternative Models

Here are some alternative models that can be considered as alternatives to TB6674FAG:

1. L293D: Dual H-Bridge motor driver IC with similar specifications.
2. DRV8833: Compact motor driver IC with integrated current sensing.
3. TB6612FNG: Dual H-Bridge motor driver IC with higher output current capability.

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

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