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Interface and Isolation

Q&A Difference between ADuM5201CRWZ and ADuM5201WCRWZ

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Difference between ADuM5201CRWZ and ADuM5201WCRWZ

QYQ on Oct 16, 2020

Hi,

could you help tell me what the difference between ADuM5201CRWZ and ADuM5201WCRWZ is?

ADuM5201CRWZ has 500mW output power but ADuM5201WCRWZ just only output 400mW.

and both have the same operating temperature range of -40C to +105C.

I just guess they are the same die, but automotive-qualified parts should be tested with stricter conditions, am I right?

but why does WCRWZ has less output power than CRWZ?

Best Regards,

Leo

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jnaso
Oct 28, 2020 in reply to QYQ +1 verified
Hi Leo,

The ADuM5201W has a thicker insulation barrier process. The thicker barrier causes lower efficiency than the industrial grade. Due to the thermal limitations of the SOIC packaging, the output is de…

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0 jnaso

on Oct 19, 2020 12:40 PM
Hi Leo,

Both parts are specified for 100mA isolated supply output with 5V nominal on the primary side. See Tables 2 & 10 DC-to-DC Converter Static Specifications in both datasheets.

There is a difference in Abs Max tables between the ADuM5401 and ADuM5401W. The output of the ADuM5401W is derated with ambient temperatures above 85C.

Regards,

Jason
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0 QYQ on Oct 19, 2020 1:08 PM in reply to jnaso

Hi Jason,

Thank you for your kindly help.

I checked ADuM5041 and ADuM5401W which are the same output current as you said.

But, Table 2 in ADuM5201W' datasheet shows an 80mA output supply, it seems like different from ADuM5201.

https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM5200_5201_5202.pdf

https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM5200W_5201W_5202W.pdf

If i missed the datasheet, sorry, and please let me know.

Best regards,

Leo
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0 QYQ on Oct 19, 2020 1:08 PM in reply to jnaso

Hi Jason,

Thank you for your kindly help.

I checked ADuM5041 and ADuM5401W which are the same output current as you said.

But, Table 2 in ADuM5201W' datasheet shows an 80mA output supply, it seems like different from ADuM5201.

https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM5200_5201_5202.pdf

https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM5200W_5201W_5202W.pdf

If i missed the datasheet, sorry, and please let me know.

Best regards,

Leo
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+1 jnaso

on Oct 28, 2020 1:05 PM in reply to QYQ
Hi Leo,

The ADuM5201W has a thicker insulation barrier process. The thicker barrier causes lower efficiency than the industrial grade. Due to the thermal limitations of the SOIC packaging, the output is de-rated.

If the application needs an automotive grade and more than 400mW, the ADuM5401W-1 would be the part to consider.

Regards,

Jason
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