RT8402GJ6 Integrated Circuits (ICs)

Voltage - Output:	--
Supplier Device Package:	TSOT-23-6
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	--
Dimming:	Triac
Frequency:	--
Current - Output / Channel:	--
Series:	--
Voltage - Supply (Max):	30V
Voltage - Supply (Min):	10V
Internal Switch(s):	No
Topology:	Step-Down (Buck)
Type:	AC DC Offline Switcher
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - LED Drivers

The RT8402GJ6 is a PMIC-LED driver that offers excellent performance in the field of managing LEDs. It provides an integrated, high-efficiency, cost-effective solution for high-power LED applications. It includes an internal 16-bit digital-to-analog converters (DAC) for dimming and a constant-current built-in PWM polarity control to drive highest current LEDs. The RT8402GJ6 is ideal for white-LED applications such as peripheral backlight, digital signage backlight, and automotive ambient and automotive home dome, as well as for LCD backlight illumination. Thanks to its low power consumption and wide input voltage range, the RT8402GJ6 is capable of supporting a wide range of designs and providing an efficient and easy solution for LED driving.

Application Field

The RT8402GJ6 is ideal for applications requiring high efficiency, cost-effective solutions that enable high-power LED driving. It features an internal 16-bit DAC for dimming and a constant-current built-in PWM polarity control that guarantee a high level of precision. This allows the use of higher-power LEDs. Its wide input voltage range and low clock frequency further contribute to its efficiency. It is capable of supporting a wide range of designs and provides easy integration for LED driving applications. The RT8402GJ6 has proved to be particularly suitable for applications such as peripheral backlight, digital signage backlight, and automotive ambient and home dome illumination. Furthermore, it is also used for LCD backlight illumination.

Working Principle

The RT8402GJ6 is designed to minimize power consumption while still providing a high level of precision in LED driving. This is accomplished by the combination of constant-current built-in PWM polarity control, a wide input voltage range, and a low clock frequency. The RT8402GJ6 is supplied from an external single-ended input voltage between 4.5 V and 35 V, typically 9 V. The input voltage passes through an internal PFC stage that reduces it to an ramp voltage. This ramp voltage is then regulated by an internal voltage regulator to a regulated voltage. A constant-current built-in PWM polarity control circuit is used to convert the regulated voltage to the desired LED current, thus eliminating the need for an external current-setting resistor. The RT8402GJ6 also includes a 16-bit digital-to-analog converter (DAC) to allow precise brightness control and enable smooth dimming with no flicker. In addition, the built-in soft-start circuit prevents inrush current and ensures low-noise operation. In conclusion, the RT8402GJ6 is an efficient, cost-effective solution for LED driving applications. Thanks to its low power consumption and wide input voltage range, it is capable of supporting a variety of designs and provides an easy solution for LED driving. The internal PWM polarity control, DAC, and soft-start circuit contribute to its high level of precision, making it ideal for applications such as peripheral backlight, digital signage backlight, and automotive ambient and home dome illumination.

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