BD5352G-TR

Overview

The BD5352G-TR is a monolithic integrated circuit designed for driving brushless DC motors. It integrates three half-bridge drivers with built-in current limit protection and thermal shutdown circuits. The device operates from a supply voltage range of 4.5V to 18V. It features PWM input control for speed regulation and includes logic-compatible inputs for easy interface with microcontrollers. The component is housed in a compact SOT-23W package, suitable for space-constrained portable applications.

Feature Summary

• Integrates three half-bridge drivers for direct brushless motor control
• Includes built-in current limit protection to safeguard against overcurrent conditions
• Features thermal shutdown circuitry to prevent damage during overheating events
• Supports PWM input signals for precise speed control

Applications

• Portable disk drives
• Cooling fans for consumer electronics
• Small brushless DC motor systems in home appliances

Procurement Notes

Verify the exact suffix TR indicates tape and reel packaging when ordering. Confirm the operating temperature range matches your specific application environment requirements. Ensure the supply voltage does not exceed the maximum rated limits specified in the official datasheet to maintain device reliability and performance standards.

Selection Notes

Select this component for applications requiring integrated motor drive functionality with minimal external components. Consider the SOT-23W package size for PCB layout constraints. Evaluate the current handling capabilities against the specific motor load requirements to ensure adequate performance margins under varying operational conditions.

Part Context

This part belongs to Rohm's series of brushless DC motor driver ICs. It is designed to simplify the design of motor control systems by integrating power stages and protection features into a single chip. The family typically offers various packages and electrical specifications to suit different power and size requirements for portable electronic devices.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Verify pin compatibility and electrical parameters before replacing. Ensure any substitute part meets the same voltage, current, and thermal requirements as the original specification.