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SN75469N
Product Overview
Category
The SN75469N belongs to the category of integrated circuits (ICs) and specifically falls under the family of motor/motion/controllers & drivers.
Use
This IC is primarily used as a quadruple half-H driver designed for use in bidirectional DC motor control applications.
Characteristics
- The SN75469N features high-voltage outputs, making it suitable for driving various inductive loads.
- It is capable of handling peak output currents of up to 1 A per channel.
- The device is designed to operate at a wide voltage range, making it versatile for different motor control applications.
Package
The SN75469N is available in a 16-pin dual in-line package (DIP), which facilitates easy integration into circuit designs.
Essence
The essence of the SN75469N lies in its ability to provide efficient and reliable control for DC motors in both directions, making it an essential component in robotics, automation, and other motion control systems.
Packaging/Quantity
The SN75469N is typically available in reels or tubes, with varying quantities based on the supplier and customer requirements.
Specifications
- Operating Voltage Range: 4.5 V to 36 V
- Peak Output Current: 1 A per channel
- Continuous Output Current: 0.5 A per channel
- Number of Channels: 4
- Package Type: 16-pin DIP
Detailed Pin Configuration
The detailed pin configuration of the SN75469N is as follows:
| Pin No. | Name | Description | |---------|------------|--------------------------------------------------| | 1 | 1A | Input for Channel 1 | | 2 | 1Y | Output for Channel 1 | | 3 | GND | Ground | | 4 | 2Y | Output for Channel 2 | | 5 | 2A | Input for Channel 2 | | 6 | 3A | Input for Channel 3 | | 7 | 3Y | Output for Channel 3 | | 8 | VCC2 | Positive Supply Voltage for Outputs 1, 2, 3, 4 | | 9 | 4Y | Output for Channel 4 | | 10 | 4A | Input for Channel 4 | | 11 | ENABLE | Enable Input (Active High) | | 12 | VCC1 | Positive Supply Voltage for Logic Inputs | | 13 | 4EN | Output 4 Enable (Active Low) | | 14 | 3EN | Output 3 Enable (Active Low) | | 15 | 2EN | Output 2 Enable (Active Low) | | 16 | 1EN | Output 1 Enable (Active Low) |
Functional Features
- Bidirectional Control: The SN75469N allows for seamless bidirectional control of DC motors, enabling forward and reverse motion.
- Overcurrent Protection: The device incorporates overcurrent protection to safeguard the connected motors from damage due to excessive current flow.
- Thermal Shutdown: It features thermal shutdown protection to prevent overheating during prolonged operation.
Advantages and Disadvantages
Advantages
- Wide Operating Voltage Range: The IC can operate within a broad voltage range, enhancing its versatility.
- Overcurrent and Thermal Protection: Built-in protection mechanisms ensure the safety and longevity of connected motors.
- Bidirectional Control: Enables precise control over the direction of motion for DC motors.
Disadvantages
- Limited Current Handling: While suitable for many applications, the 1 A peak output current may be insufficient for high-power motor control requirements.
- Package Size: The 16-pin DIP package may not be suitable for space-constrained designs.
Working Principles
The SN75469N operates by receiving control signals from a microcontroller or other input sources and translating them into appropriate outputs to drive the connected DC motors. By controlling the enable inputs and the logic levels on the input pins, the IC regulates the direction and speed of the motor rotation.
Detailed Application Field Plans
The SN75469N finds extensive application in various fields, including: - Robotics: Used for controlling the movement of robotic arms, wheels, and other motorized components. - Automation: Employed in industrial automation systems for conveyor belt control, material handling, and positioning mechanisms. - Automotive: Integrated into automotive systems for window and seat adjustment, as well as other motorized functions.
Detailed and Complete Alternative Models
Some alternative models to the SN75469N include: - L293D: A popular dual H-bridge motor driver IC with similar functionality and pin
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What is the SN75469N?
- The SN75469N is a quadruple half-H driver designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well as other high-current/high-voltage loads.
What is the maximum voltage and current rating of SN75469N?
- The SN75469N has a maximum voltage rating of 40V and a continuous output current of 1A per channel, with a peak output current of 2A per channel.
How many channels does the SN75469N have?
- The SN75469N has four independent half-H drivers, providing two full-H bridge outputs or four half-H bridge outputs.
What are the typical applications of SN75469N?
- Typical applications include driving DC motors, stepper motors, solenoids, and relays in various robotic, automotive, and industrial applications.
What is the input logic voltage level for SN75469N?
- The SN75469N is compatible with TTL and CMOS logic levels, making it suitable for interfacing with microcontrollers and digital control circuits.
Does SN75469N require external diodes for motor protection?
- Yes, external freewheeling diodes are required to protect the SN75469N from the back EMF generated by inductive loads such as motors and solenoids.
Can SN75469N handle PWM signals for motor speed control?
- Yes, the SN75469N can accept PWM signals for controlling the speed of DC motors and other loads.
What are the thermal considerations for SN75469N?
- Proper heat sinking may be necessary when operating the SN75469N at high currents or in high ambient temperature environments to ensure reliable performance.
Is there built-in protection against overcurrent or overtemperature in SN75469N?
- The SN75469N does not have built-in overcurrent or overtemperature protection, so external circuitry may be required for these functions.
Are there any known common failure modes or issues with SN75469N?
- Common failure modes include overheating due to excessive current or inadequate heat dissipation, as well as damage from voltage spikes or incorrect wiring. Careful attention to datasheet specifications and proper circuit design can help mitigate these issues.