E-L6219DS

Overview

The E-L6219DS is a bipolar monolithic integrated circuit designed to control and drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. It forms a complete control and drive circuit for LS-TTL or microprocessor-controlled systems with minimal external components. The power stage features a dual full bridge capable of sustaining 46 V, including four diodes for current recirculation. Internal pulse-width-modulation (PWM) controls the output current up to 750 mA per winding, with peak startup currents reaching 1 A. The device supports half-step, full-step, and microstepping modes.

Feature Summary

• Integrated dual full-bridge power stage with built-in protection diodes for current recirculation
• Internal PWM current control mechanism regulating output current without external complex circuitry
• Cross-conduction protection prevents simultaneous switching during current direction changes
• Internal thermal shutdown circuitry disables outputs when safe operating temperature limits are exceeded

Applications

• Bipolar stepper motor control systems
• Bidirectional DC motor drives
• LS-TTL compatible motor interfaces
• Microprocessor-controlled motion control units

Procurement Notes

Verify the exact suffix designation against official STMicroelectronics documentation, as variations such as DSA or DS013TR may indicate different packaging or specific parameter tolerances. Confirm component availability status, as original L6219 variants have been discontinued in some regions. Ensure the selected variant matches the required voltage range and current specifications for the target application design.

Selection Notes

Select this component for applications requiring a fully integrated driver solution with low saturation voltage and support for unstabilized motor supply voltages. Consider the 46 V maximum voltage rating and 750 mA continuous current capability per bridge when sizing the system. Evaluate the need for internal thermal protection and cross-conduction prevention features inherent to this architecture.

Part Context

The E-L6219DS belongs to the L6219 series of bipolar stepper motor drivers manufactured by STMicroelectronics. This family provides a compact solution for driving bipolar stepper motors or two DC motors. The device integrates control logic and power stages into a single package, reducing the component count required for motor control implementations compared to discrete solutions.

Replacement Considerations

E-L6219DSA is documented as a parameter-equivalent replacement for the L6219DSA variant.