Overview
The L6219DSA is a bipolar monolithic integrated circuit designed by STMicroelectronics to control and drive both windings of a bipolar stepper motor or to bidirectionally control two DC motors. This driver is optimized for use in LS-TTL or microprocessor-controlled stepper motor systems, requiring only a few external components. It features a dual full bridge that can sustain up to 46 V and includes four diodes for current recirculation. The L6219DSA also incorporates cross conduction protection to prevent simultaneous cross conduction during switching current direction.
The device is equipped with an internal pulse-width modulation (PWM) that controls the output current up to 750 mA, with a peak startup current of up to 1 A. It also includes thermal protection circuitry that disables the outputs if the chip temperature exceeds safe operating limits.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Minimum Operating Temperature (°C) | -40.0 | Maximum Operating Temperature (°C) | 125.0 |
| Supply Voltage (V) | 10 to 46 | Output Current (continuous) per winding (mA) | 750 |
| Peak Output Current (A) | ±1 | Logic Supply Voltage (V) | 4.75 to 5.25 |
| Package | SO-24 | RoHS Compliance Grade | Ecopack1 |
| Junction Temperature (°C) | +150 | Storage Temperature Range (°C) | -55 to +150 |
Key Features
- High Current Handling: The L6219DSA can deliver up to 750 mA per channel with a peak startup current of up to 1 A.
- PWM Speed Control: Internal pulse-width modulation (PWM) for precise speed control.
- Wide Operating Voltage Range: Compatible with supply voltages from 10 V to 46 V.
- Protection Features: Includes overcurrent and thermal protection to ensure safe operation.
- Half-Step, Full-Step, and Microstepping Modes: Supports various stepping modes for precise motor control.
- Cross Conduction Protection: Prevents simultaneous cross conduction during switching current direction.
- Low Output Saturation Voltage: Optimized for low voltage drop across the output transistors.
Applications
The L6219DSA is designed for high-performance control in various industrial and automated systems, including:
- Robotics
- CNC machines
- 3D printers
- Automated industrial systems requiring precise motion control
Q & A
- What is the primary function of the L6219DSA?
The L6219DSA is designed to control and drive both windings of a bipolar stepper motor or to bidirectionally control two DC motors.
- What is the maximum output current per winding of the L6219DSA?
The maximum output current per winding is 750 mA, with a peak startup current of up to 1 A.
- What is the operating voltage range of the L6219DSA?
The L6219DSA operates within a voltage range of 10 V to 46 V.
- Does the L6219DSA have built-in protection features?
Yes, it includes overcurrent and thermal protection to ensure safe operation.
- What types of stepping modes does the L6219DSA support?
The L6219DSA supports half-step, full-step, and microstepping modes.
- What package type does the L6219DSA come in?
The L6219DSA comes in a SO-24 package.
- Is the L6219DSA RoHS compliant?
Yes, the L6219DSA is RoHS compliant with an Ecopack1 grade.
- What are the typical applications of the L6219DSA?
Typical applications include robotics, CNC machines, 3D printers, and automated industrial systems.
- How does the L6219DSA protect against cross conduction?
The L6219DSA includes cross conduction protection to prevent simultaneous cross conduction during switching current direction.
- What is the thermal shutdown temperature of the L6219DSA?
The thermal shutdown temperature is approximately 170°C.
