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BQ24075T: Charging Li-Ion battery from USB-C

Part Number: BQ24075T
Other Parts Discussed in Thread: BQ25185EVM, BQ24075, BQ25185

Hi All, can anyone assist?

We have an existing design which is working well using the BQ24075T to charge a LI-Ion battery on a handheld device. We use a USB-AB connector on our device and this charges well from any wall charger, laptop or power bank. 

We have been requested to upgrade to USB-C on our handheld. I don't particularly want to change the charging IC, as this functions well, and I don't have too much space on the PCB or spare pins on the micro to interface with the USB-C.

Can anyone suggest how to configure the CC1 and CC2 pins on USB-C to ensure at least 1A current from the charger and do I need to connect any other pins?

Many thanks in advance