lm5034: LM5034 : Alternate Device required for Isolation.

Pragadeesh Sundar

Prodigy 20 points

Part Number: LM5034
Other Parts Discussed in Thread: LM5034

Hi,

In my design, I am using LM5034 Controller for Isolated DC-DC Converter.

Opto-Coupler occupies much space in design.

Can you suggest some Isolated Error Amplifier instead of Opto-Coupler.

over 8 years ago

0 Brian Johnson96 over 8 years ago

TI__Expert 3200 points

Hi Pragadeesh,

Part of the space for the opto-coupler is the creepage and clearance requirements to meet isolation. This is the best way to achieve your isolation and is the most often used technique. Another method is to design using a transformer but I would bet this will take up more space in your design.

0 Pragadeesh Sundar over 8 years ago in reply to Brian Johnson96

Prodigy 20 points

Hi Brian,

Two things i have to consider in my design (Temperature range +105°C & Space constraints).

Any isolated Error amplifier part is there, with internal Transformer ( like ADum3190).

0 Brian Johnson96 over 8 years ago in reply to Pragadeesh Sundar

TI__Expert 3200 points

Hi Pragadeesh,

I am going to see if I can get an AE knowledgeable (more than me) on our isolated amplifiers to help you out. In the mean time I did a quick search on TI.com and found the following list that may be of use to you: www.ti.com/.../isolated-amplifiers-products.page

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lm5034: LM5034 : Alternate Device required for Isolation.