SN75453BD

Product Overview

Category

SN75453BD belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as a motor driver in various electronic applications.

Characteristics

• Voltage rating: 4.5V to 36V
• Current rating: 1A per channel
• Number of channels: 4
• Package type: DIP (Dual In-line Package)
• Operating temperature range: -40°C to +85°C

Essence

The SN75453BD is an integrated circuit designed to drive and control motors efficiently.

Packaging/Quantity

The SN75453BD is typically available in a DIP package, with each package containing one IC.

Specifications

• Supply voltage range: 4.5V to 36V
• Output current per channel: 1A
• Peak output current per channel: 2A
• Low-side voltage drop: 1.2V at 1A
• High-side voltage drop: 2.5V at 1A
• Input voltage range: -0.3V to VCC + 0.3V
• Output voltage range: 0V to VCC
• Maximum power dissipation: 1.25W

Detailed Pin Configuration

The SN75453BD has a total of 16 pins, which are assigned specific functions as follows:

1. Enable 1 (EN1)
2. Input 1 (IN1)
3. Output 1 (OUT1)
4. Ground (GND)
5. Output 2 (OUT2)
6. Input 2 (IN2)
7. Enable 2 (EN2)
8. VCC
9. Output 3 (OUT3)
10. Input 3 (IN3)
11. Enable 3 (EN3)
12. Output 4 (OUT4)
13. Input 4 (IN4)
14. Enable 4 (EN4)
15. VCC
16. Ground (GND)

Functional Features

• Bidirectional control of up to four DC motors.
• Internal clamp diodes for inductive load protection.
• Enable inputs for each motor channel.
• Low voltage drop across the motor driver outputs.
• Thermal shutdown protection.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various power sources.
• High output current capability enables driving of motors with higher power requirements.
• Built-in protection features enhance reliability and prevent damage to the IC and connected components.
• Enable inputs provide flexibility in controlling individual motor channels.

Disadvantages

• Limited maximum power dissipation may restrict usage in high-power applications.
• DIP package may not be suitable for space-constrained designs.
• Lack of built-in speed control functionality requires additional circuitry for speed regulation.

Working Principles

The SN75453BD operates by receiving control signals through its input pins (IN1 to IN4) and enable pins (EN1 to EN4). These signals determine the direction and speed of the connected motors. The IC amplifies and regulates the input signals to drive the corresponding motor channels (OUT1 to OUT4) bidirectionally. The internal clamp diodes protect the IC from voltage spikes generated by inductive loads.

Detailed Application Field Plans

The SN75453BD finds extensive use in various applications, including:

1. Robotics: It is employed in robot control systems to drive multiple motors for locomotion and manipulation.
2. Automotive: The IC is utilized in automotive systems for controlling window motors, windshield wipers, and other motorized components.
3. Industrial Automation: It is used in industrial machinery for precise motor control, such as conveyor belts, pumps, and actuators.
4. Home Appliances: The SN75453BD is integrated into appliances like washing machines, dishwashers, and air conditioners to control motorized functions.

Detailed and Complete Alternative Models

1. L293D: Similar to SN75453BD, this IC also provides bidirectional control for up to four DC motors.
2. DRV8833: This IC offers similar functionality but operates at a lower voltage range of 2.7V to 10.8V.
3. TB6612FNG: Another alternative with similar features, suitable for driving two DC motors.

In conclusion, the SN75453BD is a versatile motor driver IC that offers bidirectional control for up to four DC motors. Its wide operating voltage range, high output current capability, and built-in protection features make it suitable for various applications in robotics, automotive, industrial automation, and home appliances. While it has some limitations, such as limited power dissipation and lack of speed control, there are alternative models available to suit specific requirements.