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 IC is part of the motor driver family and is optimized for use in LS-TTL or microprocessor-controlled stepper motor systems. With a minimal number of external components, it provides comprehensive control over the motor, including current regulation and protection features.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Supply Voltage (Vs) | Maximum supply voltage | 50 | V |
| Output Current (IO) | Peak output current | ±1 A | A |
| Output Current (IO) | Continuous output current | ±0.75 A | A |
| Logic Supply Voltage (VSS) | Logic supply voltage range | 4.75 to 5.25 V | V |
| Operating Temperature Range | Temperature range for operation | -40 to +125 °C | °C |
| Package Type | Package type and pin count | SO-24 | - |
| Thermal Shutdown Temperature | Temperature at which thermal shutdown occurs | 170 °C | °C |
Key Features
- Drives both windings of a bipolar stepper motor or bidirectionally controls two DC motors.
- Output current up to 750 mA for each winding.
- Wide voltage range: 10 V to 46 V.
- Supports half-step, full-step, and microstepping modes.
- Built-in protection diodes for current recirculation.
- Internal PWM current control.
- Low output saturation voltage.
- Designed for unstabilized motor supply voltage.
- Internal thermal shutdown protection.
Applications
The L6219DSA is suitable for various industrial and automotive applications where precise control over stepper motors or DC motors is required. It is particularly useful in systems that need to manage motor current accurately, such as in robotics, CNC machines, and other automated systems.
Q & A
- What is the primary function of the L6219DSA IC?
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 of the L6219DSA?
The maximum output current is up to 750 mA for each winding, with a peak startup current of up to 1 A.
- What is the operating voltage range of the L6219DSA?
The operating voltage range is from 10 V to 46 V.
- Does the L6219DSA support microstepping?
- What protection features does the L6219DSA include?
The L6219DSA includes built-in protection diodes for current recirculation, internal PWM current control, and internal thermal shutdown protection.
- What is the package type of the L6219DSA?
The L6219DSA is available in an SO-24 package.
- How does the L6219DSA handle thermal issues?
The L6219DSA includes thermal protection circuitry that disables the outputs if the chip temperature exceeds safe operating limits.
- Can the L6219DSA operate with unstabilized motor supply voltage?
- What is the logic supply voltage range for the L6219DSA?
The logic supply voltage range is from 4.75 V to 5.25 V.
- What is the operating temperature range of the L6219DSA?
The operating temperature range is from -40 °C to +125 °C.
