Charger Interface Physical Layer IC 8-Pin SOIC

CHY101 is a low-cost USB high-voltage dedicated charging port (HVDCP) interface IC for the Quick Charge 2.0 specification. It incorporates all necessary functions to add Quick Charge 2.0 capability to switcher ICs such as TOP Switch or Tiny Switch and other solutions employing traditional feedback schemes.CHY101 supports the full output voltage range of Class A (5 V, 9 V, and 12 V). CHY101 continuously monitors the output voltage and triggers OVP if the actual value exceeds 120% of the set value.CHY101 automatically detects whether a connected Powered Device (PD) is Quick Charge 2.0 capable before enabling output voltage adjustment. If a PD not compliant to Quick Charge 2.0 is detected the CHY101 disables output voltage adjustment to ensure safe operation with legacy 5 V only USB PDs.

• Supports Quick Charge 2.0 Class A specification
  • 5 V, 9 V, and 12 V output voltage
• USB battery charging specification revision 1.2 compatible
  • Automatic USB DCP shorting D+ to D- line
  • Default 5 V mode operation
• Adaptive output overvoltage protection (OVP)
  • Protection triggered at 120% of set output voltage
  • Latching or hysteretic shutdown mode
• Supports TOP Switch, Tiny Switch and InnoSwitch
• Very low power consumption
  • Below 1 mW at 5 V output
• Fail safe operation
  • Adjacent pin-to-pin short-circuit fault protection
  • Open circuit pin fault protection