RT8497AGS Integrated Circuits (ICs)

Voltage - Output:	--
Supplier Device Package:	8-SOP
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Lighting
Dimming:	--
Frequency:	--
Current - Output / Channel:	1.4A
Series:	--
Voltage - Supply (Max):	30V
Voltage - Supply (Min):	10V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Down (Buck)
Type:	AC DC Offline Switcher
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

PMIC (Power Management Integrated Circuits) - LED Drivers are devices with capabilities to control and power-up light-emitting diodes (LEDs). LEDs are small, energy efficient, and cost effective components that are used in a variety of applications to improve visibility and security, and can be found in everyday devices such as cell phones, portable lamps, cameras and so on. LED drivers are responsible for providing the LED with current, stabilizing the current, and providing illumination and dimming capability.The RT8497AGS is an advanced LED driver integrated circuit for driving high-brightness LEDs with ease, featuring short circuit and over current protection, which makes the device reliable and suitable for a variety of lighting applications. It is designed with a wide viewing angle, low operating current and superior tuning adjustment formula, making it ideal for general lighting applications.

Application Field

The RT8497AGS can be applied in a variety of lighting applications such as decorative lighting, architectural lighting, street lighting and security lighting. It is suitable for medium and large-scale applications, as well as small and compact applications due to its compact package.It offers a wide range of options that make it ideal for many applications, such as outdoor lighting, where its wide viewing angle, dimming function and 360°trapezoidal angled lighting options make it suitable. In addition, it is also suitable for indoor applications, such as residential and commercial areas, where its superior tuning adjustment formula, low operating current, wide dimming range and enhanced efficiency makes it ideal due to its low power consumption.The RT8497AGS also features over-load, over current and short circuit protections, which makes it reliable and suitable for transportation lighting.

General Features

Some key features of the RT8497AGS include:

• Advanced LED driver integrated circuit
• Wide viewing angle
• Low operating current
• Superior tuning adjustment formula
• 360° Trapezoidal angled lighting options
• Wide dimming range
• Enhanced efficiency
• Over-load, over current and short circuit protections

Working Principle

The RT8497AGS works by taking input power, converting it to a regulated voltage, and then controlling the flow of the current to the LED with a complex tuning network. It features a power feedback loop and a voltage compensator, which allow the LED driver to control LED current over a broad range of LED forward voltage.The RT8497AGS LED driver operates on a number of different principles. These include pulsed current, analog to digital conversion, constant current, and pulse width modulation (PWM).Pulsed current is generated in the RT8497AGS when the LED driver’s switching frequency is lowered, causing the current to be delivered to the LED in short pulses.Analog to digital conversion is employed to efficiently align a voltage to a defined frequency for precise timing and current delivery to the LED. This allows for precise control over the LED current, regardless of the load variations.Constant current is used to deliver current to the LED in a constant or steady state fashion, regardless of any fluctuations of current in the operating environment.Finally, the PWM is used to precisely control the illumination level of the LED by quickly switching the higher peak current on and off. This provides an efficient and precise method of controlling the LED current.

Conclusion

The RT8497AGS LED driver is a reliable and efficient integrated circuit for driving high-brightness LEDs with ease. It is designed with a wide range of features that make it suitable for a wide range of applications. The device’s range of operation principles allow for precise control of LED current, and its ability to control LED parameters over a broad range of LED forward voltage makes it ideal for a variety of lighting applications.

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