CD3217B12 USB and Power Delivery IC for MacBook / iPad

USB-C power delivery controllers handle the conversation between charger and device, and when one fails, nothing charges. The CD3217B12 is a 123-pin BGA USB and power delivery IC that this listing offers for MacBook and iPad repair.

The iPads named are the iPad Pro 11 second and third generations, iPad Air 4 and Air 5 (2022), iPad mini 6, and iPad Pro 12.9 fourth (2020) and fifth (2021) generations. The MacBook coverage is only described as MacBook, MacBook Pro and Air, with no years or model numbers, so check your board view.

Symptoms worth tracing

• No charging on USB-C.

• Power stuck at 5 V.

• USB-C accessories or displays not detected.

• A short after liquid or a damaged cable.

How to approach it

Rule out the cable, charger and port, then check power negotiation with a USB-C meter. Measure the controller's rails and look for shorts before lifting it.

On iPads, open the screen slowly and disconnect the battery. On MacBooks, disconnect the battery and support the board. Lift the chip with bottom heat, reball and fit the replacement. Test charging and an accessory or external display afterward.