RT8477GS

Description：IC LED DRIVER CTRLR PWM 8SOP
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9f6ea3db4d4e Category: LED Drivers IC Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC LED DRIVER CTRLR PWM 8SOP
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Controller
Topology：Step-Down (Buck), Step-Up (Boost)
Internal Switch(s)：No
Number of Outputs：1
Voltage - Supply (Min)：4.5V
Voltage - Supply (Max)：50V
Voltage - Output：50V
Current - Output / Channel：-
Frequency：380kHz
Dimming：Analog, PWM
Applications：Backlight, Lighting
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOP
Grade：-
Qualification：-

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RT8477GS

Overview

The RT8477GS is an LED driver controller manufactured by Richtek USA Inc., designed for high-voltage applications. It operates as a DC-DC controller supporting both buck and boost topologies, suitable for driving LEDs in backlight and lighting systems. The device accepts analog and PWM dimming inputs for brightness control. It functions within a supply voltage range of 4.5V to 50V and switches at a frequency of 380kHz. The component is housed in an 8-SOP-EP package with an exposed pad for thermal management. It supports a single output channel and operates reliably across a temperature range of -40°C to 85°C.

Feature Summary

Supports buck and boost converter topologies for flexible LED drive configurations
Enables precise brightness control through combined analog and PWM dimming capabilities
Integrated thermal performance via exposed pad design in the 8-SOP-EP package

Applications

LED backlighting systems
General solid-state lighting solutions

Procurement Notes

Verify the exact suffix against official documentation, as the provided model lacks the specific 'A' designation found in available datasheets (RT8477AGSP). Confirm current availability status, as related variants have been marked as obsolete or end-of-life. Ensure compatibility with existing PCB footprints for the 8-SOP-EP package before integration.

Selection Notes

Select this component when designing circuits requiring high input voltage tolerance up to 50V for LED drivers. Consider the integrated buck-boost capability if the input voltage may fluctuate above or below the LED string forward voltage. Evaluate the 380kHz switching frequency against EMI requirements and external component size constraints.

Part Context

This part belongs to the Richtek RT8477 family of LED driver controllers. Variants such as the RT8477AGSP share similar functional characteristics but may differ in specific electrical parameters or packaging details. The family targets efficient power management for lighting applications where high voltage handling and flexible topology support are required.

Replacement Considerations

Publicly confirmed substitute part numbers for the RT8477GS are not available in the provided source material. Verify cross-reference data directly from manufacturer documentation.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.