CDM10VD3XTSA1

CDM10V is a fully integrated 0 - 10 V dimming interface IC and comes in a SOT23 - 6 package to cover space requirements on small PCB designs. The device is targeted for various dimming applications in lighting. The IC can be used to transmit analog voltage based signals from a 0 - 10 V dimmer or a potentiometer or a PWM input of a lighting controller IC, transformed to a 5 mA/1 mA current based fixed frequency PWM signal, to directly drive an external optocoupler. To avoid flickering when dimming, the light up and the light down threshold has a minimum implemented hysteresis of 200 mV. It replaces many components in a traditional solution and reduces BOM and PCB space significantly. The CDM10VD - Series ICs outputs a 0 - 100% PWM current signal at a frequency of 1 kHz with an amplitude value of 1 mA or 5 mA. The duty cycle of the PWM signal can be selected to be either 5% or 10%. Dim - to - off feature is fully supported with a minimum hysteresis of 200 mV between dim - to - dark and dim - to - light. Embedded digital signal processing maintains minimum variations from device to device.

Applications

• LED Drivers needing 0 - 10 V Dimming Circuits
• Industrial and Commercial Dimmable Applications: Luminaires, Troffers, Downlights, Sconces, Undercabinet, Office Lighting, Signage applications, Dali - applications

Key features

• Simplest 0 - 10 V design on the market.
• Minimum duty cycle 5% or 10% @1V 1kHz
• PWM frequency 120μA Dimmer/Resistor Bias current
• 9.4 V dimming voltage for 100%
• 1mA or 5mA output current for driving an optocoupler
• Wide input Vcc range from 11 to 25 V plus extended range down to 6V
• Minimum 200mV dimming hysteresis between dimming to OFF and to ON
• Variable Frequency PWM Input Mode
• Replaces many external components with a single chip reducing BOM and PCB space
• Minimum variation from device to device