L6226D

Overview

The L6226D is a DMOS dual full bridge driver designed for motor control applications, manufactured using multipower-BCD technology. It integrates isolated DMOS power transistors with CMOS and bipolar circuits on a single chip. The device operates within an 8V to 52V supply voltage range and delivers a peak output current of 2.8A, with a continuous DC current rating of 1.4A. It features a typical RDS(on) of 0.73Ω at TJ = 25°C and supports operating frequencies up to 100kHz. The component is housed in a 24-SOIC package.

Feature Summary

• Integrates high-side thermal shutdown and non-dissipative overcurrent detection with diagnostic output capabilities
• Includes cross-conduction protection and undervoltage lockout mechanisms
• Features integrated fast free-wheeling diodes for efficient operation

Applications

• Brushed DC motor control systems
• General industrial motion control applications
• Ignition controller circuits

Procurement Notes

Verify the specific suffix 'D' corresponds to the 24-SOIC package variant when sourcing. Confirm that the required current ratings align with the 1.4A DC specification. Ensure thermal management solutions are adequate for the intended operating temperature range of -25°C to 125°C. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component for designs requiring a fully integrated dual full bridge solution without external gate drivers. Consider the 24-SOIC package constraints for PCB layout and thermal dissipation. Evaluate the need for paralleled operation if higher current capacity is required beyond the single channel limits. Verify compatibility with the system's logic voltage levels for parallel interface control.

Part Context

The L6226D belongs to the STSPIN L62 series of motor drivers from STMicroelectronics. This series focuses on providing robust, high-performance solutions for various motor types. The L6226 specifically targets brushed DC motors and general-purpose applications requiring dual H-bridge configurations. It shares architectural similarities with other members like the L6226Q, differing primarily in packaging and pinout arrangements.

Replacement Considerations

The L6226PD and L6226N are alternative variants within the same functional family. These parts share identical electrical characteristics but differ in physical packaging. Substitution requires verifying mechanical fit and pin compatibility with the existing board design.