RT8498GE Integrated Circuits (ICs)

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RT8498GE is a new product from Thomsan Electronic, which is categorized as PMIC - LED Drivers. It is featured with a wide operation voltage, adjustable PWM dimming with high precision and high frequency operations. By its extensive features, it is widely used in various applications including light engine drivers for general lighting applications, AC/DC drivers for backlighting and LCD drivers for TV.

In terms of its working principle, RT8498GE is a DC/DC buck step-down converter with a controller, which is combined with advanced technology developed by Thomsan. The RT8498GE\'s main components are two transistors, two current sense resistors, two feedback resistors and a current-mode PWM IC. The transistors have been chosen to have a constant breakdown voltage of 900V. The two resistors are selected to supply the required feedback current for the IC’s closed loop control.

The working principle of RT8498GE is simple and easy to understand. Firstly, the input voltage is applied to the input terminal. This voltage will be fed to the current-mode PWM IC, which then produces a pulse width modulated square wave signal at a duty cycle determined by the PWM control input. With this control input, the duty cycle of the signal can be varied, depending on the required output. The signal then passes through two transistors, which help to convert this signal into an output voltage. This output voltage is then fed to the output terminal.

In conclusion, RT8498GE is a powerful device for PMIC - LED Drivers. It is equipped with various features such as wide operating voltage, adjustable PWM dimming, high precision and high frequency operations. It is also easy to understand its working principle and it is suitable for general lighting applications, AC/DC drivers for back lighting and LCD drivers for TV.

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