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HFC0310A Fixed-Frequency Flyback Controller Suitable SOIC
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HFC0310A Fixed-Frequency Flyback Controller Suitable SOIC
The MPS HFC0310A is a Fixed-Frequency Flyback Controller Suitable. It is supplied in a SOIC package.
The HFC0310A is a flyback controller with configurable fixed-frequency operation.
Key Specifications
| Part Number | HFC0310A |
| Function | Fixed-Frequency Flyback Controller Suitable |
| Package | SOIC |
| Ordering Codes | HFC0310A |
Features
- Configurable Switching Frequency (fSW) Up to 600kHz
- High Clamped DRV Voltage (VDRV), Suitable for SiC MOSFETs
- Frequency Shaping
- Current Mode
- Very Low Start-Up Current (IST)
- Very Low Standby Power Consumption via Active Burst Mode
- Internal Leading-Edge Blanking (LEB)
- Built-In Soft Start (SS)
- Internal Slope Compensation
- External Protection with Recovery Hysteresis on the PRO Pin
Typical Application Circuit
Applications
- Switched-Mode Power Supplies (SMPS)
Design Notes
- The PFC inductor must support the maximum duty cycle at the lowest line voltage, which is where saturation risk peaks.
- High-voltage startup and X-capacitor discharge paths dominate no-load standby loss; verify them against the efficiency target.
- Leakage inductance and the RCD clamp set the turn-off loss — snubber values are a thermal trade-off, not a fixed recipe.
- Synchronous rectification timing must track the primary switching; a mistimed SR FET conducts through its body diode and fails hot.
Common Questions
Which package and ordering codes apply to the HFC0310A?
SOIC; order codes include HFC0310A.
What are the defining features of the HFC0310A?
Configurable Switching Frequency (fSW) Up to 600kHz High Clamped DRV Voltage (VDRV), Suitable for SiC MOSFETs
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