FAN8082

Overview

The FAN8082 is a monolithic integrated circuit designed for driving bi-directional DC motors with braking and speed control capabilities. It is suitable for loading motor drivers in VCR, CDP, and toy systems. The device interfaces directly with CMOS logic devices and features built-in thermal shutdown protection at 165°C to ensure stable operation under fault conditions.

Feature Summary

• Built-in brake function for stable braking characteristics
• Integrated surge current absorption element for direction changes
• External voltage-based motor speed control interface
• CMOS-compatible logic input interface

Applications

• Compact disk player (CDP) tray or changer mechanisms
• Low current DC motor drives in audio equipment
• Low current DC motor drives in video equipment
• General purpose DC motor control in toy systems

Procurement Notes

Verify the exact suffix designation when sourcing, as variations such as FAN8082D exist within the product family. Confirm package type and pinout compatibility with existing PCB layouts. Check manufacturer archives for updated documentation since Fairchild Semiconductor operations have transitioned. Ensure thermal management requirements align with the 165°C shutdown threshold specified in the datasheet.

Selection Notes

Select this component for applications requiring simple bi-directional control with minimal external components. It is ideal for low-current DC motors where speed regulation via external voltage is preferred over PWM. Consider the built-in thermal protection for environments with potential overheating risks. Verify that the supply voltage range matches the system design before integration.

Part Context

The FAN8082 belongs to a family of motor driver ICs from Fairchild Semiconductor, including variants like KA3082 and FAN8082D. These devices target consumer electronics requiring reliable DC motor control. The FAN8082 specifically addresses needs for compact, cost-effective solutions in media players and toys, offering integrated protection features to reduce system complexity.

Replacement Considerations

Direct substitutes include the KA3082 and FAN8082D. Verify pin-to-pin compatibility and electrical specifications before replacement. The KA3082B is also listed as a similar bi-directional driver. Ensure that any substitute maintains the same thermal shutdown threshold and CMOS interface compatibility.