STMicroelectronics
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L9822E
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L9822E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Motor driver
  • Characteristics:
    • High voltage capability
    • Low power consumption
    • Compact package
  • Package: SOIC-20
  • Essence: The L9822E is a motor driver IC designed for controlling DC motors in various applications.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Operating Voltage Range: 4.5V to 36V
  • Output Current: Up to 1.5A per channel
  • Number of Channels: 2
  • Control Interface: Parallel
  • Protection Features:
    • Overtemperature shutdown
    • Overcurrent protection
    • Undervoltage lockout

Detailed Pin Configuration

The L9822E has a total of 20 pins, which are assigned as follows:

  1. VCC
  2. GND
  3. OUT1
  4. OUT2
  5. IN1
  6. IN2
  7. EN1
  8. EN2
  9. REF
  10. VREF
  11. VCP
  12. CP
  13. VDD
  14. VSS
  15. NC
  16. NC
  17. NC
  18. NC
  19. NC
  20. NC

Functional Features

  • Dual H-bridge configuration for driving two DC motors independently.
  • Built-in protection features ensure safe operation and prevent damage to the IC and connected motors.
  • Parallel control interface simplifies integration with microcontrollers or other control systems.
  • High voltage capability allows for driving motors with a wide range of operating voltages.
  • Low power consumption helps optimize energy efficiency in battery-powered applications.

Advantages and Disadvantages

Advantages: - High voltage capability enables versatile motor control applications. - Compact package allows for space-efficient designs. - Low power consumption helps extend battery life in portable devices.

Disadvantages: - Limited to driving two motors simultaneously. - Parallel control interface may require additional circuitry for complex control schemes.

Working Principles

The L9822E operates by receiving control signals through its parallel interface. These signals determine the direction and speed of the connected DC motors. The IC internally generates the necessary drive signals to control the H-bridge configuration, which in turn drives the motors accordingly. Built-in protection features monitor various parameters, such as temperature and current, to ensure safe operation and prevent damage to the IC and motors.

Detailed Application Field Plans

The L9822E finds applications in a wide range of fields, including:

  1. Robotics: Controlling motors in robotic systems for precise movement and manipulation.
  2. Automotive: Driving various motors in automotive systems, such as power windows, seat adjustments, and HVAC controls.
  3. Industrial Automation: Motor control in industrial machinery, conveyor belts, and automated assembly lines.
  4. Home Appliances: Controlling motors in appliances like washing machines, dishwashers, and vacuum cleaners.
  5. Consumer Electronics: Motor control in devices such as cameras, printers, and drones.

Detailed and Complete Alternative Models

  1. L298N: Dual full-bridge driver IC with similar specifications and functionality.
  2. DRV8833: Dual H-bridge motor driver with integrated current sensing and low-voltage operation.
  3. TB6612FNG: Dual motor driver with built-in PWM control and thermal shutdown protection.

These alternative models offer similar capabilities and can be considered based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L9822E v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L9822E in technical solutions:

  1. Q: What is L9822E? A: L9822E is a high-voltage, high-current, quad darlington switch used for driving inductive loads in automotive applications.

  2. Q: What are the key features of L9822E? A: The key features of L9822E include four independent darlington switches, built-in freewheeling diodes, thermal shutdown protection, and overvoltage clamping.

  3. Q: What is the maximum voltage and current rating of L9822E? A: L9822E can handle a maximum voltage of 60V and a maximum current of 1.5A per channel.

  4. Q: How can L9822E be used in automotive applications? A: L9822E can be used to drive various inductive loads such as relays, solenoids, motors, and valves in automotive systems like power windows, door locks, wipers, and HVAC controls.

  5. Q: Does L9822E require external components for operation? A: Yes, L9822E requires external flyback diodes across the inductive loads and a suitable power supply for its operation.

  6. Q: Can L9822E handle short-circuit conditions? A: Yes, L9822E has built-in short-circuit protection that limits the current during a short-circuit event, protecting the device from damage.

  7. Q: Is L9822E compatible with microcontrollers or logic-level signals? A: Yes, L9822E can be easily controlled by microcontrollers or logic-level signals as it has TTL/CMOS compatible inputs.

  8. Q: What is the operating temperature range of L9822E? A: The operating temperature range of L9822E is typically -40°C to +150°C, making it suitable for automotive applications.

  9. Q: Can L9822E be used in non-automotive applications? A: While L9822E is primarily designed for automotive applications, it can also be used in other high-voltage, high-current switching applications where inductive loads need to be controlled.

  10. Q: Are there any application notes or reference designs available for L9822E? A: Yes, the manufacturer of L9822E provides application notes and reference designs that can help in understanding its usage and optimizing performance in different applications.

Please note that these answers are general and may vary depending on specific requirements and datasheet specifications.