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Author Topic: ULN2064B relay driver  (Read 756 times)
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Hi
I am planning to use ULN2064B ic in my project. when i checkedthe datasheet, it is mentioned that each dqrlington provides about 1.5A at a breakdown voltage of 50v. Does this mean that I have to use 50v supply to get that much of current. How much can i get at 12v?
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Does this mean that I have to use 50v supply to get that much of current.
No, 50V is the maximum rating
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How much can i get at 12v?
1.5A see the graph, i/p current controls o/p current

Have you looked at ULN2803 (500ma for each) you get 8 drivers, can be put in parallel, with common snubbing diodes.


* Current.jpg (13.3 KB, 243x243 - viewed 29 times.)
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The way you have it in your schematic isn't the same as how you have it wired up! That goes for me too.

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You can get 1.5A at any voltage.
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I used uln 2003. The ic burned off when i used it. i need more than 500mA.
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What "did you say" you were driving?
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The way you have it in your schematic isn't the same as how you have it wired up! That goes for me too.

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