LV8105W-TLM-E

Overview

The LV8105W-TLM-E is a Bi-CMOS IC predriver designed for variable speed control of three-phase brushless motors. It operates within a supply voltage range of 16 V to 28 V and draws a typical operating current of 15 mA. The device is housed in a 48-pin SQFP package with dimensions of 7 x 7 mm. It supports surface mount installation and functions reliably across an operating temperature range of -20°C to +80°C.

Feature Summary

• Integrates a built-in charge pump circuit to drive high- and low-side output n-channel power FETs without external bootstrap components.
• Incorporates a PLL speed control system with a built-in VCO circuit to generate reference signals for the speed discriminator.
• Provides comprehensive on-chip protection mechanisms, including current limiting and lock protection circuits to safeguard motor operation.

Applications

• Variable speed control systems for three-phase brushless DC motors
• Fan and blower motor driver implementations
• Industrial motion control applications requiring synchronous rectification

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity handling requirements prior to assembly. Review the official datasheet for absolute maximum ratings and thermal dissipation limits to ensure design reliability.

Selection Notes

Select this predriver when designing high-efficiency drive circuits using external power FETs. It is suitable for applications requiring low-noise PWM drive and synchronous rectifying systems. Ensure the external power stage matches the 16 V to 28 V input range and thermal requirements.

Part Context

This component belongs to the LV8105W series of motor controllers and drivers manufactured by onsemi. It serves as a specialized predriver within the broader portfolio of power management and motion control integrated circuits, targeting efficient brushless motor actuation.

Replacement Considerations

The part is listed as End-of-Life (EOL). No direct public substitute part numbers are documented in the provided source material. Designers should consult onsemi for alternative solutions or evaluate the long-term availability constraints associated with this discontinued component.

FAQ

What type of motor control architecture does the LV8105W support?

It is designed for three-phase brushless motors, utilizing a predriver configuration that interfaces with external n-channel power FETs.

Does the LV8105W include internal protection features?

Yes, it includes a full complement of on-chip protection circuits, specifically featuring current limiter and lock protection functions.