TB62781FNG,C8,EL

Overview

The TB62781FNG,C8,EL is a constant current LED driver IC manufactured by Toshiba Semiconductor and Storage. It features nine output channels with a maximum output current of 85 mA per channel. The device utilizes a boost topology to drive LEDs, supporting an input voltage range from 3 V to 5.5 V and delivering up to 28 V output voltage. It operates within a frequency range of 10 MHz and is housed in a 20-SSOP package. The component supports linear dimming and includes thermal shutdown protection for safety.

Feature Summary

• Provides constant current regulation across nine independent output channels for precise LED control.
• Integrates a boost converter topology to manage higher voltage requirements from low input sources.
• Includes built-in thermal shutdown mechanisms to protect the device during overtemperature conditions.

Applications

• LED lighting systems requiring multi-channel constant current driving
• General-purpose LED illumination circuits utilizing linear dimming techniques

Procurement Notes

Verify the specific ordering suffix and manufacturer documentation to ensure compatibility with system requirements. Confirm that the SSOP-20 package dimensions align with the target PCB layout. Review the official datasheet for detailed electrical characteristics and absolute maximum ratings before integration into final designs.

Selection Notes

Select this component when a multi-channel solution is required for LED arrays driven by low-voltage supplies. The integrated boost topology simplifies design by eliminating external inductors in some configurations. Ensure the application environment remains within the specified operating temperature range of -40°C to +85°C for reliable performance.

Part Context

This part belongs to the TB62781 series of LED drivers from Toshiba Semiconductor and Storage. It is designed specifically for applications needing multiple constant current outputs from a single integrated circuit. The series focuses on providing efficient power management for LED lighting solutions with simplified external component requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official distributor databases or manufacturer cross-reference guides for potential alternatives if this specific part number is unavailable.

FAQ

What is the maximum output current per channel?

The maximum output current per channel is 85 mA.

Does the device support dimming functionality?

Yes, the TB62781FNG,C8,EL supports linear dimming for controlling LED brightness.