Using a LED driver to provide PWM signals

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#1
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Hey guys,

 

I have a need to generate 16 pwm signals, but just at regular logic levels.  I want to use I2C to control it so was looking at a TLC59116 as a possibility (data sheet here).  My question is, can I just add pull-up resisters to the outputs to convert it to logic levels and if so what value resistor should I use?

 

Cheers

Simon

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You really need to post what you are going to be hooking up to the outputs. Will it be a TTL chip or some motor driver chips? On that, it all depends. Off the cuff, I would say 10K resistors will do the trick.

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Thanks for the reply.  Sorry, yes I should have.  It is just going to be logic pins on another cmos ic.  I should probably have also mentioned it would be a 3.3V supply.  

 

Cheers

Simon

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I'm sitting here imagining a machine with 16 motors that need speed control only, no position or direction sense. Maybe a wind chime hammer? Anyway, if the pwm is used for led brightness, the ws2812 rgb leds at adafruit are the bomb.

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