LV8824QA-NH

Overview

The LV8824QA-NH is a three-phase pre-driver for brushless DC motors designed for open-loop speed control using the Hall sensor method. It operates within a supply voltage range of 7 V to 33 V and delivers an output current of 50 mA per phase. The device functions at a quiescent current of 6 mA and supports a maximum power dissipation of 1.45 W. It provides a regulated output voltage of 5.4 V and is housed in a 32-VQFN (5x5 mm) surface-mount package with exposed pad.

Feature Summary

• Supports three-phase BLDC motor pre-driving with integrated Hall sensor input processing for open-loop commutation
• Features parallel PWM interface for simplified digital control integration
• Includes internal voltage regulation providing stable gate drive supply

Applications

• Three-phase brushless DC motor control systems
• Open-loop speed controlled fan applications
• General purpose motion control modules

Procurement Notes

Verify component authenticity through authorized onsemi channels or certified distributors. Confirm RoHS compliance status via official documentation. Check for moisture sensitivity handling requirements due to SMD packaging. Validate that the specific suffix matches project specifications as this part is listed as End-of-Life.

Selection Notes

Select this component for applications requiring dedicated three-phase pre-driving without integrated power stages. Ensure the design accommodates the 50 mA output capability and 7-33 V operating range. Consider thermal management for the VQFN package given the 1.45 W power dissipation limit. Verify compatibility with Hall sensor signal levels for open-loop operation.

Part Context

This device belongs to the LV8824 series of motor controllers from onsemi. It serves as a pre-driver stage, typically paired with external power MOSFETs or IGBTs. The series focuses on efficient commutation logic for BLDC motors using Hall effect inputs rather than back-EMF sensing.

Replacement Considerations

LV8824QA-2H is a documented alternative variant within the same series offering identical electrical characteristics but differing in packaging configuration.