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Author Topic: Can anyone help me with this Datasheet PDF? -Current readings-  (Read 1628 times)

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Offline ElectronicFanatic1Topic starter

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Can anyone help me with this Datasheet PDF? -Current readings-
« on: February 21, 2012, 04:34:52 am »
So I came across this data sheet for a LM1876 22W audio amp.. and I cant seem to find the 'Supply Current' ratings. It's probably just slipping by me... but can able one help and point it out please?

Thanks!

Mitch

http://www.jameco.com/Jameco/Products/ProdDS/835761.pdf
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Offline allanw

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Re: Can anyone help me with this Datasheet PDF? -Current readings-
« Reply #1 on: February 21, 2012, 04:42:04 am »
Need the max supply current or something? You could figure it out from the power dissipation vs output power graphs, which have different curves for VS = +/- 15, 18, 20. Otherwise it's not explicitly stated.
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Offline Pentium100

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Re: Can anyone help me with this Datasheet PDF? -Current readings-
« Reply #2 on: February 21, 2012, 04:50:11 am »
In page 18 (page 19 on the pdf reader) there is an equation how to calculate the required power supply current and voltage.

Iopeak = Sqrt(2Po/Rl), where  Po is the output power and Rl is the load resistance.
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Offline ElectronicFanatic1Topic starter

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Re: Can anyone help me with this Datasheet PDF? -Current readings-
« Reply #3 on: February 21, 2012, 04:51:04 am »
Thank you!
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