VIPER26LD

VIPER26LD is a smart high voltage converter that integrates an 800V avalanche-rugged power MOSFET with PWM current mode control. The power MOSFET with 800V breakdown voltage allows an 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 with very low consumption and burst mode operation under light load. The design of flyback, buck and buck boost converters is supported. The integrated HV startup, sense-FET, error amplifier and oscillator with jitter allow complete application designs with a minimum number of components. Typical applications include auxiliary power supply for appliances, power metering, LED drivers and SMPS for set-top boxes, DVD players and recorders.

• 60KHz switching frequency, 230Hz modulation frequency and 80% maximum duty cycle
• Embedded HV startup and sense-FET
• Current mode PWM controller
• Minimized system input power consumption: less than 30mW at 230VAC in no-load condition
• Less than 400mW at 230VAC with 250mW load
• Limiting current with adjustable set point
• Embedded error amplifier and hysteretic thermal shutdown
• Built-in soft-start for improved system reliability
• Protections with automatic restart: overload/short-circuit (OLP), feedback loop disconnection
• 16 lead SO package

Hinweise

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