![CHY103 Schematic Figure 1. Typical Application Schematic.](/sites/default/files/styles/product_image/public/images/schematics/chy103_schematic_10.png?itok=z3qil4Dc)
![CHY103 in SO-8 Package CHY103 in SO-8 Package](/sites/default/files/styles/product_image/public/images/products/PI-1600x1200%402x_CHY103-SO-8.png?itok=5BMqc-IE)
![CHY103 Schematic Figure 1. Typical Application Schematic.](/sites/default/files/styles/teaser_thumb/public/images/schematics/chy103_schematic_10.png?itok=iHdZPqtj)
![CHY103 in SO-8 Package CHY103 in SO-8 Package](/sites/default/files/styles/teaser_thumb/public/images/products/PI-1600x1200%402x_CHY103-SO-8.png?itok=0URLqmA7)
CHY103
USB Interface IC for Class A and Class B Quick Charge 3.0 Applications
USB Interface IC for Class A and Class B Quick Charge 3.0 Applications
CHY103 is a USB interface IC that supports Class A and Class B of the Quick Charge 3.0 specification. It includes features that protect the power supply and its connected Powered Device (PD) from excessive output voltages, secondary-side thermal overload, and faulty power delivery while adapter is unplugged.
The CHY103 interface IC automatically detects whether a connected PD is Quick Charge 3.0 or Quick Charge 2.0 capable before enabling output voltage adjustment. If a PD that is not compliant to Quick Charge 2.0 or 3.0 is detected, the CHY103 disables output voltage adjustment to ensure safe operation with legacy 5 V-only USB PDs.