Hi all,

Does anyone know a IC which contains one or more PWM channels that has SPI or I2C interface and can be programmed to different frequency between 200Hz and app. 30kHz min. ?

Simply cannot find any :-(

 

Have you considered microcontrollers for producing your PWM ?

 

A fair selection of Microchip PIC mcus have PWM and/or Motor PWM, plus SPI and I2C.

This is a page on the Microchip site listing parts with motor control PWM:
http://www.microchip.com/ParamChartSearch/chart.aspx?branchID=55&mid=10&lang=en&pageId=74

If you go across the page to the 'digital communication' column, you can see which devices also have SPI / I2C.