PCA9420 - ASYS max output current

nvttu — Thu, 09 Dec 2021 08:00:03 GMT

Hi NXP,

I have a question about the capability of ASYS.

PCA9420's datasheet doesn't mention the maximum current of ASYS rail.

Thanks,

Tan Tu

Re: PCA9420 - ASYS max output current

TomasVaverka — Fri, 10 Dec 2021 07:54:27 GMT

Hi Tan,

Please keep in mind that ASYS is a power pin for PCA9420, it is selected from VIN or VBAT and supply for the device internally. There is no spec on VSUS current capability, as when ASYS select VIN, VIN has current limit. What's more, BUCKs and LDOs supplied by ASYS all have current protection.

We do not recommend to use ASYS to power other loads, besides PCA9420 internal usage.

Best regards,

Tomas

topic Re: PCA9420 - ASYS max output current in Power Management

PCA9420 - ASYS max output current

Re: PCA9420 - ASYS max output current