GaN Integrated Primary Side Controller for Flyback Converter

  HL9586 Main Photo


The HL9586 is part of the primary flyback controller family of devices  integrated with GaNSEN. The HL9586 is a flyback controller that incorporates 650V with 600mΩ GaN power SenseFET. It operates in a quasi-resonant (QR) and continuous conduction mode (CCM) to significantly enhance system efficiency and power density. The control method is based on the load conditions: for heavy load, the valley switching with fixed blanking time is applied; and for medium load, the valley switching with variable blanking time is applied to optimize efficiency. In addition, it offers constant output voltage (CV) regulation through opto-coupler with shunt regulator.

Wide VDD operating ranges can be allowed for variable output mode applications, such as USB-PD/PPS or conventional DP/DN protocol communication.

The HL9586 has protections, such as VDD over-voltage protection (VDD OVP), VDMAG over-voltage protection (VDMAG OVP), VDMAG under-voltage protection (VDMAG UVP), internal over-temperature protection (OTP), brown-out protection, and externally triggered shut-down (SD) function for safety.


  • Integrated eMode GaN SenseFET
  • Low 600mΩ Rds(on) resistance
  • High average efficiency by QR and CCM switching operation
  • Wide VDD operating ranges up to 80V
  • Smart driver and frequency hopping for better EMI performance
  • Built-in current sensing circuit
  • Integrated high-voltage (HV) startup to reduce external components
  • Ultra-low standby power consumption (<20mW)
  • Limit power source (LPS) with adaptive constant current protection (CC)
  • Adaptive current sense limit
  • Over-voltage protection (OVP), under-voltage protection (UVP), and internal over-temperature protection (OTP)
  • Thermal shunt down protection through external NTC resistor (SD)
  • Brown-in protection and brown-out protection
  • Current sense short protection (CSSP)
  • Abnormal over-current protection (AOCP)

For more information or a full datasheet request, please contact the factory at sales@elevationsemiconductor.com.