CN5728-LED flashlight solution

CN5728 is a current modulation circuit operating from 2.8V to 6V. The constant output current can reach 1.5A. It can be used to drive various types of LEDs including white light-emitting diodes.

led. The LED terminal current of CN5728 is set through an external resistor, and the current range is 30mA to 1.5A. The chip integrates power transistors, which greatly reduces

the number of external components. The chip also integrates circuits such as status registers and oscillators. With the cooperation of key input pins and timing capacitor connection pins,

CN5728 can control the LED to cycle between three or four of the four states of strong light, low light, strobe and off, which is very suitable for flashlight applications.

Other functions include chip temperature modulation, chip enable input, etc.

CN5728 is packaged in an 8-pin SOP8 package with enhanced heat dissipation capability.