HFC0400
NOT RECOMMENDED FOR NEW DESIGNS
Fixed Frequency Flyback Controller with Ultra Low No Load Power Consumption
HFC0400 continues to be in production for existing customers. Please consider this alternative for new designs:

HFC0500GS-Z
Active
HFC0500GS-Z
Active
Fixed-Frequency Flyback Controller with Ultra-Low, No-Load Power Consumption
Features & Benefits
- Fixed-frequency current-mode control with internal slope compensation
- Frequency foldback down to 25kHz at light loads
- Burst mode for low standby power consumption, meeting EuP Lot 6
- Frequency jitter to reduce EMI signature
- X-cap discharge function
- Adjustable overpower compensation
- Internal high-voltage current source
- VCC under-voltage lockout with hysteresis (UVLO)
- Brown-out protection on HV
- Overload protection with programmable delay
- Thermal shutdown (auto-restart with hysteresis)
- Latch-off for external over-voltage protection (OVP) and over-temperature protection (OTP) on TIMER
- Latch-off for Vcc over voltage protection
- Short-circuit protection
- Programmable soft start
… and many more!
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