LB1924-E

Overview

The LB1924-E is a three-phase brushless motor driver IC designed for office automation products. It supports a wide supply voltage range of 9.5 to 30V and features direct PWM drive capability controlled by IC inputs. The device utilizes a three-phase bipolar drive architecture with built-in high and low-side kickback absorbing diodes. Integrated protection circuits include current limiting, low-voltage protection, motor lock protection, and thermal shutdown. It also incorporates a braking function via short-circuit braking and a forward/reverse direction switching circuit.

Feature Summary

• Direct PWM drive control for three-phase power brushless motors
• Comprehensive protection including current limiter, low-voltage, motor lock, and thermal circuits
• Built-in high and low side kickback absorbing diodes
• Integrated forward/reverse direction switching and short-circuit braking functions

Applications

• Office automation equipment
• Three-phase brushless motor control systems
• Devices requiring integrated motor protection and direction switching

Procurement Notes

Verify the manufacturer designation, as this component has been produced by both Sanyo Semicon Device and ON Semiconductor. Confirm that the specific suffix '-E' aligns with the required datasheet revision and compliance standards for your application. Ensure the sourcing channel provides documentation matching the intended manufacturer's specifications.

Selection Notes

Select this driver for applications requiring a wide operating voltage range up to 30V and direct PWM input control. It is suitable for designs needing integrated protection against overcurrent, thermal overload, and mechanical motor locks without external discrete components. Consider the package type and pinout compatibility when integrating into existing board layouts.

Part Context

The LB1924 series is part of Sanyo's lineup for office automation products, specifically targeting three-phase brushless motors. The LB1924-E variant shares core functionalities with the standard LB1920 but may differ in specific manufacturing origin or minor specification updates depending on the supplier. It serves as a dedicated solution for compact motor control in consumer and office electronics.

Replacement Considerations

The LB1920 is a confirmed substitute within the same product family. Verify pin-to-pin compatibility and electrical parameter alignment before replacement. Note that the LB1920-E is also listed as a variant from ON Semiconductor.