The CH454S with LED Drivers SOP-28_300mil RoHS is a surface mount LED Controller manufactured by Qin Heng Electronics Co., Ltd. It has 28 pins with a 300mil pitch and is RoHS compliant. It is designed to drive high efficiency LEDs from a wide range of input voltages and current levels, including voltage inputs from 2V to 7V. It is capable of handling high currents, up to 400mA, and enables LED dimming applications with PWM or analog voltage dimming control. It also has built in ESD protection and built in overcurrent protection. The CH454S with LED Drivers SOP-28_300mil RoHS is ideal for applications such as LED lighting, LED signs, LED displays, and other LED applications.