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Comments on Need help to replace 555

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Need help to replace 555

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Hi guys, Can anyone help me please replace the NE555 IC in this circuit by MIC1555. I need to modify also the Voltage to 18v thank you.

MIC1555 datasheet

NE555 datasheet

circuit to be edited

Edit:
The circuit above represents a PWM generator where the user can adjust the frequency separately from the duty cycle and vice versa, but the disadvantages of this circuit are the limitation of the NE555 that is manifested in low frequency 100khz and a high rise/fall time of 100ns to 300ns. And since the MIC1555 is a member of the family of the most known IC timer the 555 I thought that it can replace the NE555 with your help.

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2 comment threads

Ambiguity (4 comments)
Problems with this question. (2 comments)
Ambiguity
Andy aka‭ wrote almost 2 years ago

You said "voltage 18v" but your circuit shows 5 volts. You need to explain what you mean.

deleted user wrote almost 2 years ago

Hi Andy yes the voltage also gonna be 18v in place of 5v can you help please?

Olin Lathrop‭ wrote almost 2 years ago

It's OK to answer Andy here, but you also need to fix the question so that everyone else can see too. Content isn't expected to be in comments. As it is, the question is inconsistent with itself.

deleted user wrote almost 2 years ago · edited almost 2 years ago

I will fix that Mr. Olin .