Overview
The L6219R 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 a complete control and drive circuit for LS-TTL or microprocessor-controlled stepper motor systems. With its robust features and protections, it is suitable for a variety of motor control applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 4.5 to 10 | V |
| Output Current (peak) | ±1 A | A |
| Output Current (continuous) | ±0.5 A | A |
| Logic Supply Voltage (VSS) | 4.75 to 5.25 | V |
| Logic Input Voltage Range (VIN) | -0.3 to VSS | V |
| Junction Temperature (TJ) | +150 °C | °C |
| Operating Temperature Range | -20 to +85 °C | °C |
| Storage Temperature Range | -55 to +150 °C | °C |
| Thermal Resistance Junction-Case | 18 °C/W | °C/W |
| Thermal Resistance Junction-Ambient | 75 °C/W | °C/W |
Key Features
- Able to drive both windings of a bipolar stepper motor
- Output current up to 500 mA each winding
- Wide voltage range: 4.5 V to 10 V
- Half-step, full-step, and microstepping mode
- Built-in protection diodes
- Internal PWM current control
- Low output saturation voltage
- Designed for unstabilized motor supply voltage
- Internal thermal shutdown
Applications
The L6219R is suitable for various applications requiring precise control of bipolar stepper motors or bidirectional control of DC motors. These include:
- Automated machinery and robotics
- Printers and plotters
- Medical equipment
- Industrial automation systems
- Consumer electronics requiring motor control
Q & A
- What is the primary function of the L6219R IC?
The L6219R is designed to control and drive both windings of a bipolar stepper motor or to bidirectionally control two DC motors.
- What is the output current capability of the L6219R?
The L6219R can handle an output current up to 500 mA per winding, with a peak startup current up to 1 A.
- What is the voltage range supported by the L6219R?
The L6219R operates within a voltage range of 4.5 V to 10 V.
- Does the L6219R support microstepping?
- What kind of protection does the L6219R offer?
The L6219R includes built-in protection diodes and internal thermal shutdown to protect against overheating.
- How does the L6219R control the output current?
The output current is controlled through internal PWM and can be adjusted using two logic inputs and an external voltage reference.
- What is the purpose of the phase input on the L6219R?
The phase input determines the direction of current flow in the motor windings.
- What is the thermal shutdown temperature for the L6219R?
The outputs are disabled if the chip temperature exceeds +150 °C.
- What is the storage temperature range for the L6219R?
The storage temperature range is -55 °C to +150 °C.
- What package types are available for the L6219R?
The L6219R is available in SO-24 packages, including tube and tape & reel options.
