HVLED807PFTR Integrated Circuits (ICs)

Voltage - Supply (Max):	23V
Base Part Number:	HVLED807
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Applications:	--
Dimming:	PWM
Frequency:	166kHz
Current - Output / Channel:	--
Voltage - Output:	--
Series:	--
Voltage - Supply (Min):	11.5V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Flyback
Type:	AC DC Offline Switcher
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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HVLED807PFTR Application Field and Working Principle

Power management integrated circuits (PMICs) are essential components for modern electronic systems, and LED drivers are among the most important applications. The HVLED807PFTR is a step-down constant current LED driver that combines a simple, efficient design with a high level of integration to provide accurate, stable brightness control of a single high-voltage LEDstring. The HVLED807PFTR is an ideal solution for a variety of applications that require accurate, stable LED brightness control. This includes street lighting, automotive applications, general illumination and display backlighting. Because of its high level of integration and minimal component count, the HVLED807PFTR reduces development time and cost while delivering reliable performance.In this article, we will discuss the specific application fields and working principles of the HVLED807PFTR.

Application Fields

The HVLED807PFTR is designed for use in powering a single high-voltage LED string, such as an auto headlamp or automotive interior lighting. The HVLED807PFTR provides accurate, stable brightness control and high efficiency, making it an ideal choice for automotive use.In addition, the HVLED807PFTR can be used in LED displays and general illumination. The LED string can range from 30V to 80V and a meter or so away from the LED driver. With its low component count, it is an ideal solution for delivering efficient and accurate LED brightness control for applications such as street lighting, corridor lighting, and general illumination.

Working Principle

The HVLED807PFTR is a step-down constant current LED driver, with a 24V to 40V input voltage range. It uses a PFM (pulse frequency modulation) technique to regulate the output voltage, providing high efficiency and accurate LED current control. This is done by chopping the incoming voltage at a certain frequency – usually 2kHz – and running at 100% duty cycle. The output is then regulated by adjusting the frequency. The HVLED807PFTR offers a wide range of features, including adjustable maximum output current and programmable dimming - via an external resistor - as well as overtemperature protection and open LED detection.

Conclusion

The HVLED807PFTR is a highly integrated step-down LED driver that provides accurate, stable LED brightness control and high efficiency. The HVLED807PFTR is an ideal choice for use in high-voltage LED strings in applications such as automotive lighting, general illumination and street lighting. The built-in PFM technology and adjustable current limit enables the HVLED807PFTR to offer the highest level of performance and reliability.

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