L6226DTR

Overview

The L6226DTR is a DMOS dual full bridge motor controller manufactured by STMicroelectronics, designed for robust motor control applications. It utilizes multipower-BCD technology to integrate isolated DMOS power transistors with CMOS and bipolar circuits on a single chip. The device operates within an 8 V to 52 V supply range and delivers a peak output current of 2.8 A, with a continuous DC current rating of 1.4 A per channel. It features a typical RDS(on) of 0.73 Ω at TJ = 25 °C and supports operating frequencies up to 100 kHz. Packaged in a 24-SOIC surface-mount configuration, it includes thermal shutdown, non-dissipative overcurrent detection, and integrated fast free-wheeling diodes.

Feature Summary

• Integrates dual full bridge drivers with high-side overcurrent detection and diagnostic output for protection implementation
• Features cross-conduction protection, undervoltage lockout, and thermal shutdown for reliable operation
• Supports paralleled operation to increase current capacity and includes integrated fast free-wheeling diodes

Applications

• Brushed DC motor control systems
• Bipolar stepper motor driving
• Solenoid and valve actuation
• General industrial motion control

Procurement Notes

Verify the specific suffix 'DTR' corresponds to the tape-and-reel packaging variant when sourcing from distributors. Confirm that the ordering part number matches the required package type and reel quantity specifications provided by the supplier. Ensure compatibility with existing board layouts regarding the 24-SOIC footprint and pin configuration before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a fully integrated driver with built-in protection features such as thermal shutdown and overcurrent detection. Consider the 2.8 A peak current capability and 0.73 Ω on-resistance for efficiency requirements. Evaluate the need for paralleled operation if higher current loads are anticipated, and ensure the operating voltage range aligns with the system's power supply constraints.

Part Context

The L6226 belongs to the STSPIN L62 series of motor drivers from STMicroelectronics. This family focuses on providing complete solutions for motor control by integrating both logic and power stages. The L6226 specifically addresses dual full bridge needs, distinguishing itself from single bridge or half-bridge variants within the broader product portfolio.

Replacement Considerations

L6226Q serves as a direct alternative offering the same functional specifications in a VFQFPN package. L6226D provides equivalent performance in a standard SOIC tube package. Verify package dimensions and pinout compatibility when substituting between these variants.