L6219DSTR

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High voltage capability - Current sensing - Overtemperature protection - Short-circuit protection - Undervoltage lockout - Cross-conduction protection

Package: PowerSO20

Essence: The L6219DSTR is a high voltage, dual full-bridge motor driver IC. It is designed to drive both bipolar and unipolar stepper motors in various applications.

Packaging/Quantity: The L6219DSTR is available in a PowerSO20 package. Each package contains one IC.

Specifications

• Supply Voltage Range: 8V to 52V
• Output Current: Up to 1.5A per bridge
• Peak Output Current: Up to 3A per bridge
• Operating Temperature Range: -25°C to +130°C
• Maximum Junction Temperature: 150°C

Detailed Pin Configuration

The L6219DSTR has a total of 20 pins. The pin configuration is as follows:

1. VCP1: Charge Pump Capacitor 1
2. CP1: Charge Pump Capacitor 1
3. GND: Ground
4. VCP2: Charge Pump Capacitor 2
5. CP2: Charge Pump Capacitor 2
6. VREF: Reference Voltage
7. REF: Reference Voltage
8. OUT1A: Output 1A
9. OUT1B: Output 1B
10. OUT2A: Output 2A
11. OUT2B: Output 2B
12. SENSE1: Current Sense 1
13. SENSE2: Current Sense 2
14. VCC: Logic Supply Voltage
15. IN1: Input 1
16. IN2: Input 2
17. IN3: Input 3
18. IN4: Input 4
19. VCP: Charge Pump Voltage
20. GND: Ground

Functional Features

• Dual full-bridge configuration for driving bipolar and unipolar stepper motors.
• High voltage capability allows operation in a wide range of applications.
• Current sensing feature enables accurate motor control.
• Overtemperature protection prevents damage due to excessive heat.
• Short-circuit protection safeguards the IC and connected components.
• Undervoltage lockout ensures proper operation under low voltage conditions.
• Cross-conduction protection minimizes power dissipation and improves efficiency.

Advantages and Disadvantages

Advantages: - High voltage capability allows versatile motor driving applications. - Current sensing feature provides precise control over motor movements. - Comprehensive protection features ensure reliable operation. - Suitable for both bipolar and unipolar stepper motors.

Disadvantages: - Limited output current compared to some other motor driver ICs. - Higher cost compared to basic motor driver solutions.

Working Principles

The L6219DSTR operates by receiving input signals from a microcontroller or other control circuitry. These input signals determine the direction and speed of the motor. The IC then drives the motor coils accordingly, generating the required magnetic fields for motor rotation. The current sensing feature allows the IC to monitor and regulate the motor current, ensuring smooth and controlled movement.

Detailed Application Field Plans

The L6219DSTR is commonly used in various applications that require precise motor control. Some of the typical application fields include:

1. Robotics: The IC is used in robotic systems to drive stepper motors for precise positioning and movement control.
2. Industrial Automation: It finds applications in automated machinery and equipment, such as CNC machines, where accurate motor control is essential.
3. Automotive: The IC is utilized in automotive systems for controlling various motors, such as power windows, seat adjustments, and mirror positioning.
4. Medical Equipment: It is employed in medical devices that require precise motor control, such as infusion pumps and robotic surgical systems.

Detailed and Complete Alternative Models

1. L6208D: Similar to L6219DSTR, but with lower voltage capability (up to 52V).
2. L297: Stepper motor controller IC with built-in translator for simplified motor driving.
3. DRV8825: High current stepper motor driver with adjustable current control and microstepping capabilities.

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

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