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Product attributes Property Value
Manufacturer Monolithic Power Systems Inc.
Product Series
Packaging Cut Tape (CT) | Tape & Reel (TR)
Output Isolation Isolated
Internal Switch(s) No
Voltage - Breakdown 790V
Topology Flyback
Voltage - Start Up 15.5 V
Voltage - Supply (Vcc/Vdd) 9V ~ 24V
Duty Cycle -
Frequency - Switching 130kHz
Power (Watts) -
Fault Protection Over Load, Over Temperature, Over Voltage, Short Circuit
Control Features Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width), 7 Leads
Supplier Device Package 8-SOIC-7A
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Monolithic Power Systems HFC0512GS-P is a fixed-frequency flyback controller for isolated AC-DC conversion. It drives an external switch with a 790V breakdown rating, operates from a 9V to 24V Vcc supply at 130kHz, and features a 15.5V start-up threshold plus soft start and comprehensive fault protection in a 7-lead 8-SOIC package.

  • External-switch flyback architecture allows flexible MOSFET selection for varied power levels.
  • 790V breakdown rating supports wide-input offline designs.
  • Fixed 130kHz switching simplifies transformer and EMI filter design.
  • Over load, OVP, OTP, and short circuit protection enhance reliability.
  • -40°C to 125°C junction temperature range suits demanding applications.

Isolated Offline Power Supplies

The HFC0512GS-P is a fixed-frequency flyback controller driving an external switch, enabling flexible power scaling for isolated AC-DC supplies. Its 790V breakdown rating supports wide-input offline designs.

Adapters and Consumer Electronics

With a 130kHz switching frequency and 9V to 24V Vcc supply, this controller suits compact adapters requiring isolated output and soft start.

Industrial and Telecom Auxiliary Rails

Operating from -40°C to 125°C junction temperature, the HFC0512GS-P fits auxiliary power stages needing over load, over temperature, over voltage, and short circuit protection.

External-Switch Design Flexibility

Because the switch is external, designers can select the MOSFET to match target power levels while benefiting from the controller's integrated protection and soft start.

Q: What topology does the HFC0512GS-P use?
A: It is a fixed-frequency flyback controller with galvanically isolated output.
Q: Does it include an internal switch?
A: No, it drives an external switch; the 790V rating is the breakdown voltage.
Q: What is the start-up voltage?
A: The start-up voltage is 15.5V.
Q: What Vcc supply range does it support?
A: It operates from a 9V to 24V Vcc supply.
Q: What switching frequency does it use?
A: It runs at a fixed 130kHz switching frequency.
Base Product Number : HFC0512GS-P
130kHz 790V 8-SOIC AC-DC Converter External Switch Fixed Frequency Flyback Controller Isolated Offline Switcher
Q: What topology does the HFC0512GS-P use?
A: It is a fixed-frequency flyback controller with galvanically isolated output.
Q: Does it include an internal switch?
A: No, it drives an external switch; the 790V rating is the breakdown voltage.
Q: What is the start-up voltage?
A: The start-up voltage is 15.5V.
Q: What Vcc supply range does it support?
A: It operates from a 9V to 24V Vcc supply.
Q: What switching frequency does it use?
A: It runs at a fixed 130kHz switching frequency.