Compute Module • CM4 IO board current limit

Hi,

I'm trying to understand CM4IO board PCB files. On section 2.5 of CM4 IO board datasheet, It says

"There is an internal current limit switch to provide VBUS to the USB connectors. The current limit is set to approximately 1.2A."

In Schematic, I can see AP22653W6 current limit switch (U7) has 15k resistor connected at PIN 5 (ILIM). But datasheet of AP22653W6 show at least 1.5 A with 15k resistor. Can anyone explain why is this different?

https://www.diodes.com/assets/Datasheet ... 2A_53A.pdf Page 5 of 17

Statistics: Posted by mbaiglester — Mon Aug 04, 2025 8:11 pm

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