LB1668M-TLM-H

Overview

The LB1668M-TLM-H is a two-phase unipolar brushless motor driver manufactured by onsemi. It operates within a supply voltage range of 4.5 V to 18 V and delivers an output current of 1.2 A. The device functions with a maximum operating temperature of +85 °C and a minimum of -40 °C. It utilizes an SSOP-24 surface-mount package and consumes 10 mA in working power current. The component supports logic interfaces and features a power dissipation rating of 1.05 W.

Feature Summary

• Designed for two-phase unipolar brushless motor drive applications
• Integrates half-bridge output configuration for bipolar logic control
• Operates across a wide load voltage range from 4.5 V to 18 V

Applications

• Brushless DC motor control systems
• General purpose DC motor drivers
• Industrial motion control modules

Procurement Notes

Verify end-of-life status before design finalization, as the component may be obsolete or subject to discontinuation. Confirm RoHS compliance and moisture sensitivity levels (MSL 3) for assembly processes. Ensure the SSOP-24 footprint matches PCB layout requirements. Check for official product change notices regarding manufacturing site or material updates.

Selection Notes

Select this driver for low-power two-phase unipolar brushless motor applications requiring integrated half-bridge outputs. Consider the 1.2 A output current limit and 1.05 W power dissipation when designing thermal management solutions. Verify that the 4.5 V to 18 V supply range aligns with system voltage constraints. Evaluate the SSOP-24 package size against available board space.

Part Context

This component belongs to the LB1668 series of motor drivers from onsemi. It is part of the company's portfolio built on BCD technology platforms, which integrate bipolar, CMOS, and DMOS processes. The series targets efficient motor control solutions for industrial and consumer electronics, emphasizing reliability and compact integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official obsolescence notices or contact the manufacturer directly for recommended alternatives.