How to use Programmable-Current LED Lamp Driver IC with PWM Dimming

Dec 11, 2012 1 Replies

Dear sir,



I am new bee in electronics. [basically computer guy]



I need to resolve following scenario :



Using 3.3V DC supply [which can provide me PWM signals],i need to make dimming the LEDs [which is operated through AC Line 240V].



I have searched following IC :



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But i dont know how to use it...



please help me to resolve this issue.



:)


This chip doesn't provide isolation. I'd think twice about using it if you are not familiar with electronics design.

The chip provides a 7.5v output which presumably you could use to power up PWM circuitry, but I don't know if I would trust bringing the PWM control to the outside world due to a lack of isolation.

If you are just experimenting, why not get a surplus 48vdc switcher, then use a DC/DC to drive the LEDs.

If you are trying to develop a product to sell on the open market, I think this is over your head.

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