VIPER012HSTR

When it comes to high voltage conversion, the VIPER012HSTR stands out as a powerful and intelligent solution. Its integration of an 800 V avalanche-rugged power MOSFET with PWM current mode control ensures efficient and reliable performance. The extended input voltage range made possible by the 800 V breakdown voltage, along with reduced DRAIN snubber circuit size, opens up new possibilities in design and application. With low consumption and pulse frequency modulation under light load, this IC meets the most demanding energy-saving standards

Key Features

• 800 V avalanche-rugged power MOSFET allowing ultra wide V_AC input range to be covered
• Embedded HV startup and sense-FET
• Current mode PWM controller
• Drain current limit protection (OCP)
• Wide supply voltage range: 4.5 V to 30 V
• Self-supply option allows the auxiliary winding or bias components to be removed
• Minimized system input power consumption:
  • Less than 10 mW @ 230 V_AC in no-load condition
  • Less than 400 mW @ 230 V_AC with 250 mW load
• Jittered switching frequency reduces the EMI filter cost:
  • 30 kHz ± 7% (type X)
  • 60 kHz ± 7% (type L)
  • 120 kHz ± 7% (type H)
• Embedded E/A with 1.2 V reference
• Protections with automatic restart: overload/short-circuit (OLP), line or output OVP, max. duty cycle counter, V_CC clamp
• Pulse-skip protection to prevent flux-runaway
• Embedded thermal shutdown
• Built-in soft-start for improved system reliability