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LM2576 On/Off

Chirag Rasputla

Prodigy 190 points

Other Parts Discussed in Thread: LM2576

Hello, have been using LM2576 for power supply now require to use its On/Off feature for rebooting the device automatically. But the problem is its response time is very fast and does not shutdown completely, so is there any way by which can increase the time so that it can shutdown completely and then turn On after some time.

Please suggest.

over 11 years ago

0 Anston Lobo over 11 years ago

TI__Genius 16025 points

Hi Chirag,

We received your query and will get back to you shortly.

Thanks,

Anston

0 Anston Lobo over 11 years ago in reply to Anston Lobo

TI__Genius 16025 points

Hi Chirag,

We have an approach to implement this but need to know your input voltage range and the output voltage so we can design a complete circuit.

Thanks,

Anston

0 Chirag Rasputla over 11 years ago in reply to Anston Lobo

Prodigy 190 points

Hi Anston,

Input Voltage range is from 9VDC to 32VDC, have used two LM2576 one for 5V and other for 3.3VDC.

Regards,

Chirag

0 Anston Lobo over 11 years ago in reply to Chirag Rasputla

TI__Genius 16025 points

Hi Chirag,

We are working on a schematic for your design and will get back to you very soon.

Thanks,

Anston

0 Anston Lobo over 11 years ago in reply to Anston Lobo

TI__Genius 16025 points

Hi Chirag,

5270.[E2E] Chirag LM2576 On-off.pdf

Attached is the design schematic for your application. Let us know if you have any further questions.

Thanks,

Anston

0 Chirag Rasputla over 11 years ago in reply to Anston Lobo

Prodigy 190 points

Hi Anston,

Thanks for the solution.

Regards,

Chirag