Precise high current drive circuit

　　　This circuit connects the enable terminal of DD311 to the PWM signal output terminal, and the system can achieve precise brightness adjustment. In the circuit, the driver DM 413 that receives the RGB PWM signal can be defined as a PWM signal generator. Inputting serial data into DM413 can generate up to 14-bit RGB PWM grayscale signals, which are used to control three DD311s in one unit. The LED driver circuit designed using the combination of DD311 and DM 413 is an ideal high-end grayscale control and color adjustment solution.