LB1838JM-TRM-E

Overview

The LB1838JM-TRM-E is a monolithic digital integrated circuit functioning as a low-saturation, two-channel bidirectional motor driver. Designed for low-voltage applications, it serves as a bipolar stepper-motor driver IC suitable for printers, cameras, and portable devices. The device operates with a minimum supply voltage of 2.5V and features a low saturation voltage of 0.40V at 400mA output current. It incorporates built-in through-current prevention, separate logic and motor power supplies, spark killer diodes, and a thermal shutdown circuit. The component is housed in a compact 14-MFP package.

Feature Summary

• Low-saturation two-channel bidirectional motor driver design
• Built-in protection circuits including through-current prevention and thermal shutdown
• Separate logic and motor power supply architecture
• Integrated spark killer diodes for noise suppression

Applications

• Bipolar stepper motor control in printers
• Motor driving in camera systems
• Stepper motor control in portable electronic devices

Procurement Notes

Verify the specific ordering suffix to ensure the correct tape-and-reel packaging variant is selected. Confirm that the 14-MFP surface-mount package aligns with your PCB footprint requirements. Ensure the input voltage range supports the required 2.5V to 9V operation for your specific application environment.

Selection Notes

Select this component when a low-voltage, low-saturation bipolar stepper motor driver is required. It is appropriate for space-constrained designs due to its compact MFP14S package. Consider its built-in thermal and current protections for robust operation in portable consumer electronics without requiring extensive external protection components.

Part Context

This part belongs to the LB1838 family of motor drivers from onsemi. It is the surface-mount version (JM) of the LB1838M, packaged in a 14-pin MFP format. The TRM-E suffix indicates the specific tape-and-reel packaging configuration for automated assembly processes.

Replacement Considerations

The LB1838MEVB is an evaluation board for the base LB1838M, not a direct pin-compatible replacement. Verify if the LB1838M in a different package type is available as a substitute, ensuring voltage and current ratings match.