RT8494GS Integrated Circuits (ICs)

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PMIC - LED Drivers

The RT8494GS is a highly versatile LED driver with a range of applications and uses. It is a fully integrated LED driver that can be used in various applications such as general lighting and automotive applications. This driver provides high efficiency of up to 98% and a wide operating temperature range of -40ºC to +125ºC.

The RT8494GS is a pulse width modulation (PWM) dimmable LED driver. It provides power input from an external AC/DC power supply and integrates a 30V/6A, 600V MOSFET switch. This LED driver also incorporates current sensing and voltage regulation for accurate power and current control to ensure the stability and reliability of the output in case of any load change.

The RT8494GS features internal device safety features such as auto restart, thermal protection, and over-temperature protection which protect the device from short circuit, thermal overloading, and open circuit conditions. Additionally, the device is also RoHS and REACH compliant, providing safety and reliability.

The working principle of the RT8494GS is based on the Pulse Width Modulation (PWM) dimming technique. This principle states that the current flowing through an LED can be controlled by the duty cycle of the PWM signal. By pulsing the LED control signal between ground and the selected switching frequency can be used to switch the current through the LED accurately. The PWM frequency of the RT8494GS can be adjusted between 10KHz and 250KHz. The duty cycle of the signal is then adjusted to control the current and ensure that the output current matches the desired value.

The RT8494GS is ideal for indoor and outdoor lighting, emergency lighting, roadway signaling applications, and automotive applications such as interior lighting systems and brake lights. The integrated current sensing and wide operating temperature range make it suitable for rigorous environmental conditions.

In conclusion, the RT8494GS is a highly versatile and efficient LED driver that can be used for a wide range of applications. Its pulse width modulation dimming technique provides accurate current control and protection to the device. The integrated device safety features and wide operating temperature range make it suitable for various indoor and outdoor applications, as well as automotive applications.

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