LB11873-TRM-E

Overview

The LB11873-TRM-E is a fully integrated bipolar motor driver designed for polygonal mirror motors. It features a half-bridge output configuration capable of delivering 1.8 A output current with an operating supply current of 28 mA. The device supports an output voltage range of 4.65 V to 5.35 V and dissipates up to 900 mW of power. It operates within a minimum temperature of -20°C and utilizes surface mount technology.

Feature Summary

• Fully integrated control and power stage for simplified system design
• Bipolar technology optimized for specific motor applications
• Half-bridge output configuration for efficient drive capability

Applications

• Polygonal mirror motors
• Laser scanning systems
• Optical imaging devices

Procurement Notes

Verify the exact package type, typically 36-HSOP, against your PCB footprint requirements. Confirm RoHS compliance status through official onsemi documentation before finalizing procurement. Ensure thermal management solutions accommodate the specified 900 mW power dissipation rating in your enclosure design.

Selection Notes

Select this component when driving polygonal mirrors requiring precise bipolar control. Compare against the LB11870 series if different pin counts or packaging are needed. Evaluate the 1.8 A current limit against your motor's peak demand to ensure adequate headroom without exceeding thermal limits.

Part Context

This part belongs to the LB11873 series from onsemi, specialized for motion control in optical systems. It serves as a dedicated driver solution for high-speed rotating mirror assemblies found in laser printers and barcode scanners, offering a compact alternative to discrete driver designs.

Replacement Considerations

Check the LB11870-TRM-E for similar functionality with potential pinout differences. Verify compatibility with existing firmware logic levels before substituting.