AN15851A Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Audio Video Switch
Applications:	TV Switch
Mounting Type:	Surface Mount
Package / Case:	36-USO
Supplier Device Package:	--
Base Part Number:	AN15851A

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AN15851A belongs to a category of specialized ICs, as it is a step-down high-efficiency LED driver integrated circuit specifically intended for LED lighting solutions. It is best used in LED lighting applications such as street lamps and automobile lamps.AN15851A is a highly integrated LED driver IC featuring functions such as short circuit protection, over-temperature protection, overload protection and a frequency jittering mode. The device has two outputs: the main LEDs and the auxiliary LEDs. The working principle is based on a 10-bit PWM control (PSC) to achieve dimming control.The chip is built on an advanced CMOS process, resulting in an ultra-low power consumption design. It integrates a voltage and current regulating system, as well as a soft-start function for a smooth start of the LEDs. AN15851A can reduce power consumption by up to 75%, and it has a wide range of operating supply voltages from 6V to 24V with very low output ripple voltage.The chip is capable of driving up to 8 LEDs in series at a constant current of 350mA for the main output, and up to 2 LEDs in series at a constant current of 120mA for the auxiliary output. In addition, it has a high-precision output current regulation across the entire input range, with a set current accuracy within +/- 5%.In conclusion, AN15851A is an ideal IC for LED lighting solutions due to its high efficiency, low power consumption, wide operating supply range and low output ripple voltage. It is capable of driving up to 8 main LEDs and 2 auxiliary LEDs and has high precision output current regulation, making it an ideal choice for applications that require high-quality lighting solutions.

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