LB1940U-TLM-E

Overview

The LB1940U-TLM-E is a bipolar stepper motor driver IC designed for low-voltage applications, supporting operation down to 3V. It features a 2-phase exciter type architecture suitable for driving bipolar stepper motors. The device operates within a voltage range of 1.9V to 6.5V and supports low current operation. It is housed in a 20-TSSOP package with a width of 4.40mm.

Feature Summary

• Designed for low-voltage operation supporting 3V battery systems
• Bipolar stepper motor driver with 2-phase exciter type functionality
• Suitable for low current operation requirements

Applications

• Bipolar stepper motor control
• Low-voltage motor applications
• Battery-powered devices requiring 3V support

Procurement Notes

Verify component authenticity through authorized distributors or original manufacturer channels. Confirm package integrity and pin alignment upon receipt. Check for obsolescence status as the part may be discontinued. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Validate part marking against official documentation before integration.

Selection Notes

Select this component when bipolar stepper motor control is required in low-voltage environments. Consider the 1.9V to 6.5V operating range for compatibility with 3V battery systems. Evaluate the 20-TSSOP package constraints for PCB layout. Verify current requirements match the driver's low-current capabilities. Assess thermal management needs based on application load.

Part Context

The LB1940U-TLM-E belongs to the LB1940 series of stepper motor drivers. It shares architectural similarities with variants like LB1940T-MPB-E but differs in package and specific electrical characteristics. The series targets low-voltage bipolar stepper motor applications. Other models in the family may offer different packaging options or slight parameter variations while maintaining core driver functionality.

Replacement Considerations

Direct substitutes include LB1940T-MPB-E for similar functionality with potential package differences. Cross-reference electrical parameters and pin configurations before substitution. Verify compatibility with existing circuit designs and thermal requirements. Consult manufacturer documentation for updated availability and alternative part numbers.