Diodes Incorporated

AP4370 Decoding IC

Diodes' AP4370 is a high-performance and cost-effective QC 2.0 decoding solution for cellphone chargers and adapters

Image of AP4370 Decoding ICDiodes' 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.

Features
  • Compatible to Qualcomm HVDCP QC 2.0 protocol:
    • Decoding for 5 V, 9 V, and 12 V output voltage levels
  • Overvoltage discharge function
    • Accelerates output voltage decline transition
  • Available in SOT26 package needing fewer external components
    • Saves BOM cost and layout size
 Applications    
  •  Chargers
  
  • Adapters 
Published: 2015-10-16

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