RT8560GQW

Overview

The RT8560GQW is a discontinued 4-channel LED driver IC manufactured by Richtek USA Inc. It utilizes a boost DC-DC converter topology to drive white LEDs, supporting analog and PWM dimming control methods. The device delivers up to 30mA per channel with a maximum output voltage of 60V. It operates within an input supply range of 7V to 40V and features an internal switch. The component is housed in a 20-WQFN (4x4) package with an exposed pad for thermal dissipation.

Feature Summary

• Four independent current-regulated channels for uniform LED brightness
• Supports both analog and digital PWM dimming control interfaces
• Integrated high-side boost regulator with internal power switch
• Designed for backlight applications requiring compact form factors

Applications

• LCD backlight drivers for portable devices
• LED illumination systems in consumer electronics
• Display backlighting modules requiring multi-channel regulation

Procurement Notes

Verify the obsolete status of this part number before design-in. Confirm availability through authorized distributors or secondary markets. Ensure that any substitute components maintain compatible pinouts, electrical specifications, and thermal performance to avoid redesign efforts. Check RoHS compliance documentation for specific manufacturing batches.

Selection Notes

Select this component only if the application requires four independent LED channels driven by a single boost regulator. Evaluate the 60V output limit against the total forward voltage of the LED string. Consider the 20-WQFN package size constraints and thermal management requirements for the exposed pad. Verify compatibility with the system's dimming control signals.

Part Context

This IC belongs to the RT8560 family of LED drivers from Richtek. It is specifically designed for high-efficiency LED lighting solutions where space is limited. The GQW suffix indicates the specific package type and temperature rating. This series targets applications needing precise current regulation across multiple LEDs without external sense resistors for each channel.

Replacement Considerations

The RT8560GQW is officially listed as obsolete. No direct functional substitutes are confirmed in the provided data. Designers should evaluate alternative multi-channel LED drivers with similar boost topologies and channel counts. Cross-reference pin configurations and control interfaces carefully when selecting replacements.