VIPER115HSTR

VIPER115HSTR is a high voltage converter smartly integrating an 800V avalanche-rugged power MOSFET with PWM current mode control. The power MOSFET with 800V breakdown voltage allows the extended input voltage range to be applied, as well as the size of the DRAIN snubber circuit to be reduced. This IC meets the most stringent energy-saving standards as it has very low consumption and operates in pulse frequency modulation under light load. The design of flyback, buck and buck boost converters is supported. The integrated HV startup, senseFET, error amplifier and oscillator with jitter allow a complete application to be designed with the minimum number of components.

• Embedded HV startup and sense-FET
• Current mode PWM controller
• Drain current limit protection is 590mA
• Wide supply voltage range: 4.5 V to 30 V
• Minimized system input power consumption less than 10mW at 230VAC in no-load condition
• Jittered switching frequency reduces the EMI filter cost is 120kHz ± 7%(type H)
• Embedded E/A with 1.2V reference
• Overload/short-circuit (OLP), line or output OVP, maximum duty cycle counter, VCC clamp
• Pulse-skip protection to prevent flux- runaway
• Embedded thermal shutdown, built-in soft-start for improved system reliability