AP1171 is a high-efficiency, step-down low-voltage input LED driver IC with constant current, suitable for LED driver ICs with a wide voltage range of 12-85V
The peak current control method with fixed off time is adopted, and its operating frequency can reach up to 1HMz, which is beneficial to the volume of inductors and filter capacitors, improves efficiency and saves PCB area. The fixed off time can be adjusted by external resistors, and the operating frequency can also be eradicated User request for adjustment
The AP1171 has a built-in 5A100V power MOS, and the brightness of the LED light can be set by adjusting the resistance of the external current detection resistor. The maximum output current is 1.2A.
AP1171 has built-in over-temperature protection, which reduces the output current when the temperature reaches 140°C. The chip also has output open circuit and output short circuit protection functions to improve safety.
Adopt SOP8 package
Wide input voltage range
High efficiency can be as high as 92% or more
Adjustable off time
Built-in current detection leading edge blanking
Maximum output current 1.2A
Electric bicycle lights, car lights, night market lights, ship lights
Strong light flashlight, and other DC lighting