RT8511AGQW

Voltage - Output:	43V
Supplier Device Package:	8-WDFN (2x2)
Package / Case:	8-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	1MHz
Current - Output / Channel:	1.2A (Switch)
Series:	--
Voltage - Supply (Max):	24V
Voltage - Supply (Min):	2.7V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

PMIC (Power Management Integrated Circuit) – LED Drivers are multi-functional circuits that provide power to LEDs, typically for illumination or display applications. RT8511AGQW is a single-chip LED driver, typically used in backlight systems for notebooks and LCD TVs, among other lighting applications. It is an ideal solution for a wide range of applications, such as automotive, industrial, and entertainment industries, given its advantages in terms of power efficiency, low noise, and cost-effectiveness. In this article, we will discuss the application field and working principle of the RT8511AGQW PMIC – LED Driver.

Application Field

The RT8511AGQW is a PMIC – LED driver that is designed for use in applications that require high brightness and low noise. These applications include backlighting systems for notebooks and LCD TVs, automotive lighting, consumer and industrial lighting, and entertainment applications. It is particularly well-suited for applications that require power efficiency and low noise, such as automotive lighting and consumer and industrial lighting. The RT8511AGQW has several advantages over traditional power supply solutions. It is a cost-effective solution as it has a high efficiency and reduces power consumption significantly. It is also suited for high brightness applications as it offers a wide range of adjustable brightness settings. Additionally, it provides very low noise and is highly reliable due to its advanced EMI protection mechanism.

Working Principle

The RT8511AGQW has a built-in Boost converter to step up and regulate the supply voltage. Its boost converter uses a PWM (Pulse Width Modulation) switch, which turns the DC voltage into AC voltage and internally senses the output voltage on the fly. The boost converter is designed to allow the user to adjust brightness settings. The adjustable settings include output voltage, output current, and PWM duty cycle. There is also an internal sense resistor that allows the RT8511AGQW to sense and adjust the output voltage automatically. Additionally, the RT8511AGQW can be configured to operate in either single phase or dual phase mode to maximize efficiency. Additionally, the RT8511AGQW has an advanced EMI (ElectroMagnetic Interference) protection mechanism to reduce EMI noise. It also has a Start-up/Shutdown Controller to ensure the safe and reliable start-up and shut-down of the power supply.

Conclusion

The RT8511AGQW PMIC – LED Driver is an ideal power management solution for LED applications that require high brightness and low noise. It is a cost-effective solution that provides excellent power efficiency, adjustable brightness settings, and an advanced EMI protection mechanism. It also has a built-in boost converter and Start-up/Shutdown Controller to ensure safe and reliable operation. It is well-suited for a wide range of applications, such as automotive, industrial, and entertainment industries.

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