RT8482GS

Overview

The RT8482GS is a highly integrated DC-DC controller designed for driving high-power LED arrays in backlighting and lighting applications. It supports both step-down (buck) and step-up (boost) topologies with a fixed switching frequency of 350kHz, suitable for wide input voltage ranges. The device features analog and PWM dimming capabilities and operates within a junction temperature range of -40°C to 125°C. It is housed in a 16-SOP package with a width of 3.90mm.

Feature Summary

• Supports buck and boost converter topologies for flexible LED drive configurations
• Enables precise brightness control through analog and PWM dimming interfaces
• Operates at a fixed 350kHz switching frequency for efficient power management

Applications

• High-power LED array backlighting systems
• General solid-state lighting fixtures
• Automotive LED illumination components

Procurement Notes

Verify the component authenticity by checking the manufacturer marking against Richtek USA Inc. official documentation. Confirm the package type matches the 16-SOP specification and ensure RoHS compliance status aligns with project requirements. Cross-reference the part number suffix to guarantee functional equivalence with the standard RT8482GS variant.

Selection Notes

Select this controller when designing circuits requiring both buck and boost functionality for varying input voltages. Ensure the application demands a 350kHz switching frequency and supports the specified thermal operating range. Verify that the load current requirements fall within the device's 2A capability limits for reliable long-term operation.

Part Context

This component belongs to the PMIC LED Drivers category from Richtek USA Inc. It serves as a specialized power management solution for modern lighting systems. The device integrates essential control logic to simplify the design of efficient LED drivers while maintaining compact form factors suitable for space-constrained electronic assemblies.

Replacement Considerations

Consult official substitution lists for compatible alternatives. No specific public substitute part numbers are confirmed in the provided data. Verify pin compatibility and electrical specifications before considering any cross-references.

FAQ

What dimming methods does the RT8482GS support?

The device supports both analog and PWM dimming methods for controlling LED brightness.

What is the operating temperature range for this IC?

The junction temperature range is specified from -40°C to 125°C.