L6226PD

Overview

The L6226PD is a DMOS dual full bridge driver designed for motor control applications, realized in multipower-BCD technology. It integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device supports an operating supply voltage from 8 to 52 V and delivers a 2.8 A output peak current with 1.4 A DC capability. It features a typical RDS(on) of 0.73 Ω at TJ = 25 °C and operates at frequencies up to 100 kHz. The component includes thermal shutdown, non-dissipative overcurrent detection on high-side MOSFETs, undervoltage lockout, cross-conduction protection, and integrated fast free-wheeling diodes.

Feature Summary

• Integrates isolated DMOS power transistors with CMOS and bipolar circuits using multipower-BCD technology.
• Provides programmable high-side overcurrent detection and protection with a diagnostic output.
• Includes thermal shutdown and undervoltage lockout for enhanced system reliability.
• Features integrated fast free-wheeling diodes and cross-conduction protection.

Applications

• Brushed DC motor control
• Stepper motor control
• Solenoid driving

Procurement Notes

Verify the specific package variant, as the L6226 family includes PowerSO36 and SO24 options. Confirm that the ordered part matches the required pinout and thermal characteristics for the design. Ensure compatibility with the intended supply voltage range and current requirements. Check for any specific ordering suffixes that may indicate different packaging or temperature grades. Validate the component against the official datasheet specifications before integration.

Selection Notes

Select this component for applications requiring a fully integrated dual full bridge solution with built-in protection features. It is suitable for designs needing high peak current handling and robust fault management. Consider the thermal performance and package type when determining heat dissipation strategies. Evaluate the operating frequency range to ensure it meets the PWM control requirements of the target application.

Part Context

The L6226PD belongs to the L6226 series of DMOS dual full bridge drivers manufactured by STMicroelectronics. This series is part of the broader portfolio of motor control ICs designed for various industrial and consumer applications. The PD suffix typically denotes a specific package configuration within the L6226 family, distinguishing it from other variants like the L6226Q or standard L6226.

Replacement Considerations

Direct replacements within the L6226 family include L6226D, L6226N, and L6226PDTR, which share similar functional characteristics but may differ in package or tape-and-reel configuration. Cross-family alternatives such as L6206 or L6227 offer different current ratings or additional PWM control features. Verify pin compatibility and electrical parameters when substituting.