VIPER318XDTR

The VIPER318XDTR is a high-voltage converter that excels in intelligent integration and power efficiency. Equipped with an 800 V avalanche rugged power MOSFET and PWM current-mode control, it enables an extended input voltage range and reduces the size of the DRAIN snubber circuit. With low consumption and operation in pulse frequency modulation at light load, this device is perfectly suited for meeting stringent energy-saving standards. Additionally, the VIPER318XDTR features overvoltage and undervoltage protections with separate and settable intervention thresholds, along with ultra-low residual input power consumption. Its integrated HV startup, sense FET, error amplifier, and oscillator with frequency jitter allow for a complete application design with minimal component count

Key Features

• 800 V avalanche-rugged power MOSFET (4.5 Ω max. R_DS(on))
• Embedded HV startup and sense FET
• Current mode PWM controller
• Drain current limit protection (OCP)
  • 710 mA (VIPER317)
  • 850 mA (VIPER318)
  • 990 mA (VIPER319)
• Wide supply voltage range: 4.5 V to 30 V
• Ultra-low input power consumption:
  • < 10 mW @ 230 VAC in no-load;
  • < 400 mW @ 230 VAC, 250mW output load
• Jittered switching frequency reduces the EMI filter cost:
  • 30 kHz ±7% (type X)
  • 60 kHz ±7% (type L)
  • 132 kHz ±7% (type H)
• Embedded E/A with 1.2 V reference
• Built-in soft-start for improved system reliability
• Embedded protections with automatic restart