LB1668M-W-AH

Overview

The LB1668M-W-AH is a two-phase unipolar brushless motor driver manufactured by onsemi. It integrates logic interfaces for control and provides drive outputs suitable for bipolar or unipolar configurations. The device supports supply voltages ranging from 6.4V to 7V for logic and load voltages of 12V or 24V. It operates within a temperature range of -30°C to 80°C (TA). The component is housed in a 14-LSOP package with a width of 4.40mm. It features half-bridge output configurations and is designed for DC motor and general-purpose applications.

Feature Summary

• Integrates two-phase drive capability for unipolar brushless motors
• Includes built-in logic interface for direct control signal reception
• Provides dual half-bridge output stages for motor winding excitation

Applications

• Two-phase unipolar brushless motor control systems
• DC motor driving circuits
• General-purpose motor automation applications

Procurement Notes

Verify the specific suffix W-AH against current manufacturer documentation, as availability may vary. Confirm RoHS compliance status and check for any product change notices or end-of-life declarations prior to finalizing design-in decisions. Ensure the 14-LSOP package dimensions match the target PCB footprint requirements.

Selection Notes

Select this component when designing systems requiring dedicated two-phase unipolar brushless motor drive functionality. Consider the 12V or 24V load voltage options and the 14-LSOP surface-mount package constraints. Evaluate thermal performance within the specified operating temperature range for the intended enclosure environment.

Part Context

This part belongs to the LB1668 series of motor drivers originally developed by Sanyo Semicon Device and later acquired by onsemi. The series is characterized by its integration of drive logic and power stages for small to medium-sized brushless motors. The LB1668M variant specifically targets two-phase unipolar applications, offering a compact solution compared to discrete implementations.

Replacement Considerations

Direct substitutes include other parts within the LB1668 family such as LB1668M-TLM-E or LB1668M-TLM-H, which share identical functional descriptions and pinouts. Verify package compatibility and electrical specifications before substitution.