RT8475GS Integrated Circuits (ICs) |
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Allicdata Part #: | 1028-1299-2-ND |
Manufacturer Part#: |
RT8475GS |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Richtek USA Inc. |
Short Description: | IC LED DRIVER CTRLR DIM 14SOP |
More Detail: | LED Driver IC 1 Output DC DC Controller Step-Down ... |
DataSheet: | RT8475GS Datasheet/PDF |
Quantity: | 1000 |
Voltage - Output: | -- |
Supplier Device Package: | 14-SOP |
Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Applications: | Backlight, Lighting |
Dimming: | Analog, PWM |
Frequency: | 350kHz |
Current - Output / Channel: | -- |
Series: | -- |
Voltage - Supply (Max): | 36V |
Voltage - Supply (Min): | 4.5V |
Number of Outputs: | 1 |
Internal Switch(s): | No |
Topology: | Step-Down (Buck), Step-Up (Boost) |
Type: | DC DC Controller |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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The RT8475GS is a high-performance, embedded, linear LED driver. It’s a compact, low-cost, single-chip solution that integrates constant current and power control functions into a single, small package. It can drive up to 30 LEDs and has a wide input voltage range. The RT8475GS has become a popular choice for designs that require high efficiency, accuracy, and thermal stability.
The RT8475GS is classified as PMIC – LED Drivers. This application field is the power management solutions for lighting systems, some of which include glare covers, backlighting and general lighting. With its ability to control low voltage direct current (DC) applications, the RT8475GS offers a cost-effective solution that enables the designer to use a single device to achieve high efficiency, superior thermal performance, and tight control on LED current.
The working principle of the RT8475GS is simple yet efficient. The device uses a built-in power MOSFET to control the LED current. A resistive load (Rca) is connected to the LED in order to provide feedback to the RT8475GS. The input voltage is applied to the gate of the MOSFET, and the output is connected to the LED, thus controlling the LED current. The current is applied to the LED until the feedback voltage reaches the predetermined voltage level.
The RT8475GS also features integrated power management features, such as over-temperature and short-circuit protection, over-voltage and under-voltage protection, and a wide input voltage range. Additionally, the RT8475GS features a PWM dimming interface, allowing designers to use 8-bit resolution up to 13.5MHz clock frequency to adjust LED brightness.
The RT8475GS’s wide input voltage range ensures compatibility with a variety of power supplies and its advanced thermal management system ensures that it can be used in a variety of applications. Additionally, its low-cost, single-chip solution makes it an ideal choice for embedded systems. All of these features make the RT8475GS a suitable power management solution for a variety of LED applications, such as automotive lighting and signage lighting.
The specific data is subject to PDF, and the above content is for reference
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