L6226Q

Overview

The L6226Q is a DMOS dual full bridge driver designed for motor control applications, realized in BCD multipower technology. It integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device operates with a supply voltage from 8 to 52 V and delivers a peak output current of 2.8 A (1.4 A DC). The typical RDS(on) is 0.73 Ω at TJ = 25 °C. Operating frequency reaches up to 100 kHz. Features include programmable high side overcurrent detection, thermal shutdown, under voltage lockout, cross conduction protection, and integrated fast free wheeling diodes.

Feature Summary

• Integrates isolated DMOS power transistors with CMOS and bipolar circuits via BCD multipower technology
• Features non-dissipative overcurrent detection on high side power MOSFETs with diagnostic output
• Includes thermal shutdown, under voltage lockout, and cross conduction protection mechanisms

Applications

• Brushed DC motor control
• General motor control systems
• Industrial motion control

Procurement Notes

Verify the specific package variant, as the L6226Q designation typically corresponds to the QFN32 5x5 package. Confirm that the ordering suffix matches the required tape and reel or tray configuration if applicable. Ensure the component meets the intended operating temperature range and voltage specifications for the target application before finalizing procurement.

Selection Notes

Select this component for applications requiring a dual full bridge driver with integrated power stages. The BCD technology offers high integration. Consider the 2.8 A peak current capability and 52 V maximum supply voltage. Evaluate the need for the built-in overcurrent protection and diagnostic features versus external circuitry requirements.

Part Context

The L6226Q belongs to STMicroelectronics' L6226 family of DMOS dual full bridge drivers. This family includes variants such as L6226D, L6226N, and L6226PD, which may differ in packaging or specific electrical characteristics. The L6226Q specifically utilizes the QFN32 package format.

Replacement Considerations

L6226QTR is the tape and reel version of the L6226Q. Other family members like L6226D or L6226N may serve as functional alternatives but require verification of pin compatibility and package differences.