L6219DSA13TR

Overview

The L6219DSA13TR 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 operates with a supply voltage range of 4.75V to 5.25V for logic and supports load voltages from 10V to 46V. The device features an internal pulse-width modulation (PWM) current controller that regulates output current up to 750mA per winding, with peak startup currents reaching 1A. Packaged in a 24-SOIC surface-mount format, it includes built-in protection diodes and thermal shutdown capabilities.

Feature Summary

• Dual full-bridge power stage capable of sustaining high voltage loads with integrated recirculation diodes
• Internal PWM current control mechanism regulating output current with low saturation voltage
• Cross-conduction protection prevents simultaneous switching during current direction changes
• Thermal protection circuitry automatically disables outputs when safe operating temperature limits are exceeded

Applications

• LS-TTL or microprocessor-controlled stepper motor systems
• Bipolar stepper motor winding control
• Bidirectional brushed DC motor control

Procurement Notes

Verify the specific ordering suffix '13TR' indicates tape-and-reel packaging rather than tube packaging found in other variants like L6219DSA. Confirm component status as discontinued or obsolete through official STMicroelectronics channels before finalizing procurement plans. Ensure compatibility with existing LS-TTL logic levels and verify that the 24-SO package dimensions match the target PCB footprint requirements.

Selection Notes

Select this component for applications requiring precise current regulation in bipolar stepper motors without external power transistors. The integrated PWM controller simplifies design by eliminating the need for separate current sensing and feedback loops. Consider the 46V maximum load voltage rating when selecting motor supplies. The 24-SO package offers a compact solution for space-constrained designs requiring dual half-bridge configurations.

Part Context

The L6219 series represents STMicroelectronics' family of bipolar stepper motor drivers. The L6219DSA13TR variant specifically denotes the tape-and-reel packaging option within the L6219 product line. This series is engineered for complete control and drive circuits using minimal external components, targeting industrial and consumer automation applications requiring reliable motor control.

Replacement Considerations

E-L6219DSA is listed as a parameter-equivalent replacement by STMicroelectronics. Verify pinout and electrical specifications against the original datasheet to ensure functional compatibility. Other manufacturers may offer similar dual H-bridge drivers, but interface and current ratings must be validated.