Clarification on feature codes of Innoswitch3-PD
Posted by: IPP
on
Hi team,
Is max power capability (and hence the offered PDOs etc) the only difference between H803 and H801 variants of INN3879C?
The datasheet lists, on page 1, different output power values depending on the requirement. But all values in the row of INN3879C are above 45W (that of H803, as understood from the webpage). There is no mention of H803 in the datasheet.
Why is the power rating for H803 variant lesser than the specified values and not clarified in the datasheet? Also we would expect this basic spec to remain similar across variants as the datasheet doesn't indicate otherwise.
Comments
Hi PI-Prowler
Thanks for the clarification.
Hi IPP,
The difference between INN3879C-H801 and INN3879C-H803 is the PDOs they can support. Other parameters such as the the Primary current limit (ILIM), RDS_on, etc., are the same for both products. This essentially means that H801 offers 65 W max output while H803 offers 45 W max output with the same IC. This can also be said to other InnoSwitch3-PD devices of same model but with different feature code unless specifically stated in the datasheet.
In terms of practical application, given that the max output power of INN3879C is 65 W (for Universal Input, Adapter type), the INN3879C-H803 gives the option to design a 45 W power supply with potentially better thermal performance, smaller design form factor, or higher peak power delivery. In comparison to using another InnoSwitch3-PD product with 45 W max power (eg. INN3868C-H801 or INN3878C-H801) which can only deliver up to 3 A load current, INN3879C-H803 can also deliver up to 5 A load current for the 5 V and 9 V PDO.
I hope this answers your question. Thank you for using PI Forum.