RT7302GS Integrated Circuits (ICs)

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The RT7302GS PMIC – LED driver is a voltage-mode, white LED driver controller solution with a constant frequency current control Loop. It can be used to drive white LEDs in LCD TV and monitor backlighting applications, as well as other applications. The RT7302GS features onboard voltage regulation and provides a low current ripple due to its high frequency PWM current regulation, while still offering a low efficiency drop. The RT7302GS has two different sources of power to drive white LEDs: a primary power source, usually a DC/DC converter, and a secondary power source, usually an aux source.

A voltage-mode LED driver has several advantages when compared to other drivers. It is more efficient, allowing for a lower current ripple and a lower cost. Additionally, voltage-mode LED drivers can be used to drive any type of LED, from low-power to high-power LEDs. Furthermore, voltage-mode LED drivers can be dynamically adapted to different LED characteristics. As a result, LED drivers using the RT7302GS can be easily configured to suit the design requirements of any application.

The RT7302GS works by providing a voltage to a series of LEDs in order to maintain a constant output current. This is achieved by modulating the voltage across the LEDs in a pulse width modulation (PWM) scheme. The RT7302GS has two PWM pins that can be used to control the PWM waveform. The waveform can be either a regular square wave or a variable frequency waveform. The waveform is generated by an internal oscillator and then converted to a PWM signal by the PWM pins. The PWM signal is then used to control the voltage across the LEDs. This voltage is then regulated using a series of over-current, peak voltage, and temperature protection circuits.

The RT7302GS also has several protection features to protect the LEDs from electrical damage. The RT7302GS features over-voltage, over-current, peak voltage, and temperature protection. The over-voltage protection allows the driver to be safely used in applications with a high voltage supply, while the over-current protection protects the LEDs from excessive currents. The peak voltage protection limits the voltage across the LED to ensure it does not exceed the safe operating voltage level. Finally, the temperature protection circuit limits the LED temperature to ensure it does not exceed the rated temperature.

The RT7302GS is a low cost and efficient LED driver solution that can be used in a variety of applications. The onboard voltage regulation ensures that the output current is maintained, while the protection circuits protect the LEDs from electrical damage. The RT7302GS is available in a small package making it ideal for space-constrained applications. It is also highly compatible with low-voltage DC/DC converters, allowing for an easy integration into existing designs.

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