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SN75468DE4
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SN75468DE4

Product Overview

Category

The SN75468DE4 belongs to the category of integrated circuits (ICs) and specifically falls under the family of motor/motion/Ignition controllers & drivers.

Use

This IC is commonly used as a dual H-bridge motor driver, providing an efficient solution for driving DC motors and other inductive loads.

Characteristics

  • Dual H-Bridge Motor Driver
  • High Current Capability
  • Thermal Shutdown Protection
  • Wide Operating Voltage Range
  • Low Saturation Voltage

Package

The SN75468DE4 is available in a 16-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to control the direction and speed of two DC motors independently, making it suitable for various robotic and automotive applications.

Packaging/Quantity

The SN75468DE4 is typically packaged in tubes or reels, with quantities varying based on the supplier and customer requirements.

Specifications

  • Operating Voltage: 4.5V to 36V
  • Continuous Output Current: 1A per channel
  • Peak Output Current: 2A per channel
  • Quiescent Current: 4mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SN75468DE4 features a 16-pin configuration, with each pin serving specific functions related to power supply, motor control, and input/output signals.

| Pin No. | Name | Function | |---------|------------|---------------------------| | 1 | VCC1 | Motor 1 Power Supply | | 2 | 1A | Motor 1 Input 1 | | 3 | 1Y | Motor 1 Output 1 | | 4 | GND1 | Ground for Motor 1 | | 5 | GND | Common Ground | | 6 | 2Y | Motor 2 Output 2 | | 7 | 2A | Motor 2 Input 2 | | 8 | VCC2 | Motor 2 Power Supply | | 9 | Enable 1 | Motor 1 Enable Signal | | 10 | Enable 2 | Motor 2 Enable Signal | | 11 | 2Y | Motor 2 Output 1 | | 12 | 2A | Motor 2 Input 1 | | 13 | GND2 | Ground for Motor 2 | | 14 | VCC2 | Motor 2 Power Supply | | 15 | VCC2 | Logic Power Supply | | 16 | GND | Common Ground |

Functional Features

  • Dual H-Bridge Configuration: Allows independent control of two motors.
  • Thermal Shutdown Protection: Protects the IC from overheating.
  • Low Saturation Voltage: Ensures minimal power loss during operation.
  • Wide Operating Voltage Range: Enables compatibility with various power sources.

Advantages and Disadvantages

Advantages

  • Efficient motor control for robotics and automotive applications.
  • Thermal protection enhances reliability.
  • Low saturation voltage minimizes power dissipation.

Disadvantages

  • Limited to driving low to moderate current motors.
  • External diodes may be required for inductive load protection.

Working Principles

The SN75468DE4 operates by utilizing its H-bridge configuration to control the direction and speed of DC motors. By applying appropriate logic signals to the input pins, the IC can drive the connected motors forward, reverse, or apply braking.

Detailed Application Field Plans

Robotics

The SN75468DE4 finds extensive use in robotics for controlling the movement of robotic arms, wheels, and other motorized components. Its dual H-bridge design allows precise control over multiple motors, enabling complex motion sequences.

Automotive

In automotive applications, this IC is employed in electric power steering systems, window regulators, and other motor-driven mechanisms. Its ability to handle a wide range of operating voltages makes it suitable for diverse automotive platforms.

Detailed and Complete Alternative Models

  • L293D
  • L298N
  • DRV8833
  • TB6612FNG

These alternative models offer similar functionality and are compatible replacements for the SN75468DE4, catering to different design and performance requirements.

In conclusion, the SN75468DE4 serves as a versatile dual H-bridge motor driver, offering efficient motor control, thermal protection, and wide voltage compatibility. Its application spans across robotics, automotive, and other domains, with alternative models available to address specific design needs.

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  1. What is the SN75468DE4?

    • The SN75468DE4 is a quadruple half-H driver designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as welljson as other high-current/high-voltage loads in positive-supply applications.

  2. What is the maximum voltage and current rating of SN75468DE4?

    • The SN75468DE4 can handle a maximum voltage of 36V and a continuous current of 1A per channel, with a peak current of 2A per channel.

  3. How many channels does the SN75468DE4 have?

    • The SN75468DE4 has four independent half-H drivers, providing four channels for driving separate loads.

  4. What are the input logic levels for controlling the SN75468DE4?

    • The SN75468DE4 accepts TTL and CMOS logic input levels, making it compatible with a wide range of microcontrollers and digital control circuits.

  5. Can the SN75468DE4 handle PWM signals for motor speed control?

    • Yes, the SN75468DE4 is capable of handling PWM signals for precise speed control of motors and other loads.

  6. Is the SN75468DE4 suitable for bidirectional motor control?

    • Yes, the SN75468DE4 supports bidirectional control, allowing for forward and reverse operation of DC motors and other bidirectional loads.

  7. What are the thermal considerations for using the SN75468DE4?

    • Proper heat sinking and thermal management should be employed when operating the SN75468DE4 at high currents or in high ambient temperature environments to ensure reliable performance.

  8. Does the SN75468DE4 have built-in protection features?

    • The SN75468DE4 includes built-in diodes for back EMF protection, helping to safeguard the driver and connected components from voltage spikes generated by inductive loads.

  9. Can the SN75468DE4 be used in automotive applications?

    • Yes, the SN75468DE4 is suitable for automotive applications due to its ability to handle higher voltages and currents, making it ideal for driving automotive actuators and motors.

  10. Are there any application notes or reference designs available for using the SN75468DE4?

    • Texas Instruments provides comprehensive application notes and reference designs for integrating the SN75468DE4 into various technical solutions, offering valuable guidance for design and implementation.