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| PartNumber | RT8477 | RT8477AGSP | RT8477GS |
| Description | IC HV LED DRIVER 8PSOP | IC LED DRIVER CTRLR DIM 8SOP | |
| Manufacturer | Richtek USA Inc. | Richtek USA Inc. | Richtek USA Inc. |
| Product Category | PMIC - LED Drivers | PMIC - LED Drivers | PMIC - LED Drivers |
| Series | - | - | - |
| Type | DC DC Controller | DC DC Controller | DC DC Controller |
| Packaging | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging |
| Package Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Frequency | 380kHz | 380kHz | 380kHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Applications | Backlight, Lighting | Backlight, Lighting | Backlight, Lighting |
| Supplier Device Package | 8-SOP-EP | 8-SOP-EP | 8-SOP |
| Number of Outputs | 1 | 1 | 1 |
| Current Output Channel | - | - | - |
| Internal Switch s | No | No | No |
| Topology | Step-Down (Buck), Step-Up (Boost) | Step-Down (Buck), Step-Up (Boost) | Step-Down (Buck), Step-Up (Boost) |
| Voltage Supply Max | 50V | 50V | 50V |
| Voltage Supply Min | 4.5V | 4.5V | 4.5V |
| Voltage Output | 50V | 50V | 50V |
| Dimming | Analog, PWM | Analog, PWM | Analog, PWM |