LB11961RM-TLM3-E

Overview

The LB11961RM-TLM3-E is a single-phase fan motor driver manufactured by onsemi, designed for open-loop speed control using the Hall sensor method. It operates within a supply voltage range of 4.5 V to 16 V and features a maximum power dissipation of 1.1 W. The device supports an operating temperature range from -30°C to +90°C and draws a typical operating supply current of 24 mA. Packaged in a 14-HSSOP (Surface Mount) configuration with a thermal pad, it integrates both control logic and power stages for efficient fan motor management.

Feature Summary

• Integrates full control and power stages for single-phase fan motor applications
• Supports open-loop speed control utilizing Hall sensor feedback methods
• Operates reliably across extended industrial temperature ranges

Applications

• Fan motor drivers
• Single-phase brushless DC motor control
• Open-loop speed regulation systems

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via official documentation. Check for End-of-Life (EOL) notifications as this product line may be discontinued. Ensure storage conditions respect humidity sensitivity levels specified in the datasheet to maintain device integrity prior to assembly.

Selection Notes

Select this component for designs requiring integrated single-phase fan motor control without external power transistors. Verify that the required supply voltage falls within the 4.5 V to 16 V operational window. Ensure the application environment stays within the -30°C to +90°C temperature limits. Confirm compatibility with Hall sensor-based open-loop control strategies rather than closed-loop or commutation-dependent methods.

Part Context

This part belongs to the LB11961 series of fan motor controllers and drivers. It is categorized under PMIC - Power Management ICs and specifically Motor / Motion / Ignition Controllers & Drivers. The device utilizes BCD technology and is part of onsemi's standard product portfolio, often associated with the Treo platform architecture for reliable mass production.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The LB11961RM-TLM3-E is listed as an End-of-Life (EOL) product. Designers should consult official obsolescence notices or contact onsemi sales for recommended next-generation replacements or compatible alternatives.