Analog digital PMW converter targeted for lighting dimming applications

Infineon’s new CDM10V, available from Rutronik, is a fully integrated 0-10V dimming interface IC. The device is targeted for various dimming applications in lightning. The device comes in a small 6 pin SOT23 package to cover space requirements on small PCBs. The IC can be used to transmit analog voltage based signals from a 0-10V dimmer or potentiometer to the dimming or PWM input of a lighting controller IC in the form of a current based PWW signal to drive an external optocoupler. It replaces many components in a traditional solution and reduces BOM and PCB space significantly. It supports active and passive dimming as well as Dim-to-Off with PWM input possibility and configurable PWM frequency from 200-2000Hz. The configurable R-DIM bias current is 50-500µA. It has a supply voltage range from 11 up to 25V. This dimming device is one solution for various applications as the one-time-programming interface allows a wide range of configurations. The embedded digital signal processing maintains minimum variations from device to device.