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TLC5947: PWM chip / circuit for LED strip lighting HIGH FREQUENCY

Part Number: TLC5947
Other Parts Discussed in Thread: TPS54201

Hello, Newby here.  I am building LED luminaires.  The LED strip is Constant Voltage type. 24VDC powered.  We power the unit with a standard switchmode type power supply.  I would like to find a chip that may do all of the following but not sure what is out there:

-External DC power could be 22 to 30VDC

-Would like PWM to be high frequency such as 1000HZ or your suggestion.  The higher frequency is so the LED light pulses faster than vision equipment cameras.

-Would like the chip to have internal driver to act as a smoothing DC DC convertor.

-Will be connecting the chip to a Bourns potentiometer PTM90 series.

Please please offer suggestions as I am new to this forum and would like something decent to present to the Electronic Contractor.

NOTE:  I found one of these on the internet and it seems to work perfect.  Just trying to minimize space by using maybe 1 chip vs. this:

Part # 

Excellway ZS-X4B 90W DC 3-35V Motor PWM Speed Controller Switch LED Fan Dimmer

www.newegg.com/.../Product.aspx