L6230QTR

Overview

The L6230QTR is a DMOS fully integrated three-phase motor driver optimized for Field-Oriented Control (FOC) applications. It features independent current sensing and operates with an supply voltage range of 8 to 52 V. The device delivers a peak output current of 2.8 A (1.4 A RMS) with a typical RDS(ON) of 0.73 Ω at TJ = 25 °C. It supports operating frequencies up to 100 kHz and includes integrated fast freewheeling diodes. Protection mechanisms include non-dissipative overcurrent detection, cross-conduction protection, thermal shutdown, and undervoltage lockout.

Feature Summary

• Optimized for FOC applications through independent current sensing capabilities
• Non-dissipative overcurrent protection on high-side power MOSFETs
• Integrated uncommitted comparator with open-drain output
• BCD technology combining isolated DMOS transistors with CMOS and bipolar circuits

Applications

• Three-phase brushless DC motor control
• Permanent Magnet Synchronous Motor (PMSM) drives
• Field-Oriented Control (FOC) systems

Procurement Notes

Verify the specific suffix 'QTR' against the manufacturer's official datasheet to confirm it denotes the tape-and-reel packaging variant of the L6230Q. Ensure compatibility with the intended PCB footprint, as the component is available in VFQFPN32 packages. Confirm that the ordering information matches the exact electrical specifications required for the target application design.

Selection Notes

Select this component for designs requiring integrated three-phase drive with dedicated current sensing for vector control algorithms. The device suits low-voltage applications within the 8-52 V range. Consider the thermal performance and package options when designing for continuous operation near the maximum current ratings. Verify that the microcontroller interface aligns with the driver's logic requirements.

Part Context

The L6230 series represents STMicroelectronics' solution for compact, efficient motor control. It utilizes BCD multipower technology to integrate power stages and control logic. The QTR designation typically indicates a reel-packaged version of the L6230Q, facilitating automated assembly processes for high-volume manufacturing environments.

Replacement Considerations

Consult official substitution lists for direct replacements. Generic equivalents may lack the specific independent current sensing architecture required for FOC optimization. Verify pin compatibility and thermal characteristics before integrating alternative components into existing designs.