Diodes' AP4370 is a decoding IC compatible with Qualcomm’s high-voltage dedicated charging port (HVDCP) quick charge (QC) 2.0 protocol.

It decodes the different combinations of D+/D- signals generated by a portable device and into the related configurations of V1/V2. This can be used to change either the voltage reference or voltage feedback divider resistor for the controller IC to achieve constant voltage and constant current control.

AP4370 has overvoltage discharge features to accelerate output voltage decline transition.

It automatically provides 5 V output configuration for a connected portable device that is not compatible to Qualcomm QC 2.0 protocol.

The AP4370 is available in an industry-standard SOT26 package.