E-L6219R

Overview

The E-L6219R 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 with minimal external components for LS-TTL or microprocessor-controlled systems. The power stage is a dual full bridge capable of sustaining 46 V, including four diodes for current recirculation. An internal pulse-width-modulation (PWM) controls the output current to 500 mA with peak startup current up to 1 A. The device operates within a supply voltage range of 4.75V to 5.25V and a load voltage range of 4.5V to 10V.

Feature Summary

• Integrated dual full-bridge power stage with built-in protection diodes for current recirculation
• Internal PWM current control regulating output current via logic inputs and external reference
• Cross-conduction protection prevents simultaneous switching during direction changes
• 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 component authenticity through authorized STMicroelectronics distributors. Confirm package integrity and pin alignment against the 24-SO specification. Validate lot codes and date codes to ensure compliance with industrial grade requirements. Cross-reference datasheet revisions to confirm parameter consistency before integration into final designs.

Selection Notes

Select this component for applications requiring low-voltage bipolar motor control with integrated power stages. Ensure the system load voltage does not exceed 10 V. Verify that the required output current remains within the 500 mA limit per bridge. Confirm compatibility with LS-TTL logic levels for interface signals.

Part Context

The E-L6219R belongs to the L6219 family of bipolar motor drivers from STMicroelectronics. It shares core architectural features with the L6219DSA but is optimized for lower voltage operation ranges. The part serves as a specialized variant for specific low-voltage industrial and consumer motor control applications.

Replacement Considerations

E-L6219DSA is documented as a parameter equivalent replacement. Verify electrical specifications and thermal characteristics match design requirements before substitution.