LB1668M-TLM-E

Overview

The LB1668M-TLM-E is a two-phase unipolar brushless motor driver manufactured by onsemi. Designed for low-voltage applications, it operates within a supply voltage range of 4V to 15V and supports a maximum collector current of 1.5A. The device features a typical switching frequency of 23kHz and includes an integrated power converter rated at 0.8W. It is housed in a compact 16-pin SSOP package with dimensions of 5.2mm x 4.4mm x 1.3mm. The component functions reliably across an operating temperature range from -30°C to +95°C.

Feature Summary

• Integrated driver circuitry specifically configured for two-phase unipolar brushless DC motors
• Built-in protection mechanisms to ensure operational stability under varying load conditions
• Compact surface-mount packaging designed for space-constrained electronic assemblies

Applications

• Brushless DC motor control systems
• Low-power industrial automation devices
• Consumer electronics requiring precise motor regulation

Procurement Notes

Verify the specific suffix TLM-E against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage limits and thermal requirements before integration. Cross-reference marking codes and compliance documentation directly with manufacturer records to avoid counterfeit components.

Selection Notes

Select this component when designing circuits for two-phase unipolar BLDC motors requiring moderate current drive capabilities. Consider the 16-pin SSOP footprint for PCB layout constraints. Evaluate thermal management needs given the +95°C maximum operating temperature limit and the 0.8W internal power dissipation rating.

Part Context

This device belongs to the LB1668 series of motor drivers developed using onsemi's Treo platform technology. The platform utilizes BCD 65nm process nodes to integrate bipolar, CMOS, and DMOS technologies. This approach enables high-density integration and robust performance for standard product applications in power management and signal control.

Replacement Considerations

Official substitutes include LB1668M, LB1668M-TLM-H, and LB1668M-W-AH. Verify pinout compatibility and electrical parameters before substitution.