343S00389 USB Charging IC for iPad 9 (2021), 182 Pin

Two iPad 9 boards can carry different markings in the same spot, which is why this chip has a near twin. The 343S00389 is a 182-pin USB charging IC listed for the iPad 9 (2021), models A2602, A2603, A2604 and A2605.

A separate listing sells the 343S00388 for the same tablet. Check the marking on your chip before ordering. The listing doesn't give a board position.

Faults it may cause

• Won't connect properly to a computer.

• Won't charge.

• Charging that misbehaves.

• Charging slowly.

Fitting tips

Try another cable, adapter and port flex before board work. Lift the display with care, disconnect the battery and find the chip in your board view.

Large BGAs like this need steady preheating and patience. Reball with a matching stencil, place on fresh flux and test charging and data before refitting the screen with new adhesive. Give it a full charge cycle on the bench and check the computer connection stays stable. If the fault returns, recheck the Lightning port flex and its connector for damage before suspecting the new chip, and note which marking you fitted.