L6225N

Overview

The L6225N is a DMOS dual full bridge motor driver designed for brushed DC 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 supports an operating supply voltage range from 8V to 52V and provides a peak output current of 2.8A, with a continuous DC current rating of 1.4A per half-bridge. It features a typical RDS(ON) of 0.73Ω at Tj = 25°C and operates at frequencies up to 100kHz. The component is housed in a 20-PowerDIP package suitable for through-hole installation.

Feature Summary

• Integrates non-dissipative overcurrent protection for high-side PowerMOSFETs
• Includes thermal shutdown capability for enhanced reliability
• Features under-voltage lockout and cross-conduction protection mechanisms
• Supports paralleled operation for increased current handling

Applications

• Brushed DC motor control systems
• Industrial automation actuators
• General purpose motion control applications

Procurement Notes

Verify the specific suffix designation against official STMicroelectronics documentation to confirm package type and pin configuration. Confirm availability status as distribution channels may list obsolete or end-of-life inventory. Ensure that the procurement source provides valid traceability and authenticity guarantees for semiconductor components. Cross-reference the manufacturer part number with the latest datasheet revision to ensure compatibility with existing design specifications.

Selection Notes

Select this component when a robust dual full bridge driver is required for brushed DC motors within the 8V to 52V supply range. Consider the 1.4A continuous current limit and 0.73Ω on-resistance for thermal management calculations. The through-hole PowerDIP package is suitable for prototyping or applications requiring mechanical stability. Evaluate the need for integrated protections such as thermal shutdown and overcurrent limiting before choosing alternative discrete solutions.

Part Context

The L6225N belongs to the L6225 series of DMOS dual full bridge drivers from STMicroelectronics. This series is engineered using MultiPower-BCD technology, which combines power and logic functions on a single chip. The L6225 variant specifically offers lower current capabilities compared to higher-rated siblings like the L6205, making it appropriate for medium-power motor applications where cost-effective integration of drive and protection features is prioritized.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.