CHY103D Battery Management USB IC Power Integrations CHY103D Battery Management USB IC is a mobile device charger interface which implements the Qualcomm's Quick Charge 3.0 specification for adaptive voltage. This mobile charger incorporates all necessary functions to circuits such as InnoSwitch™, TinySwitch™, TOPSwitch™ and other charger solutions. CHY103D protects the power supply and connected Powered Device (PD) from excess output voltages, secondary-side and thermal overload. This charger allows the PD to remotely shutdown the power supply through USB data lines by selecting either hysteretic or latching shutdown. One of the features of CHY103D is that it detects if a connected PD is Quick Charge 3.0 or Quick Charge 2.0 before enabling the output voltage adjustment.