STMicroelectronics VIPER26K
The VIPer26K supports the most common SMPS topologies such as: isolated flyback with optocoupler, primary-side regulation, non-isolated flyback with resistive feedback, buck, and buck boost.FEATURES
● 1050 V avalanche-rugged power MOSFET● allowing ultra-wide VAC input range to be covered
● Embedded HV startup and sense-FET
● Current mode PWM controller
● Drain current limit protection:
● -500 mA (VIPER265K)
● -700 mA (VIPER267K)
● Jittered switching frequency reduces the EMI filter cost: 60 kHz ± 4kHz
● Standby power < 30 mW at 230 VAC
● Embedded E/A with 3.3 V reference
● Safe auto-restart after a fault condition
● Hysteretic thermal shutdown
● Built-in soft-start for improved system reliability
APPLICATIONS
● SMPS for energy metering● Auxiliary power supplies for 3-phase input industrial systems
● LED lighting
● Air conditioning Datasheet - production data
DESCRIPTION
The device is a high voltage converter smartly integrating a 1050 V avalanche-rugged power section, with a PWM current mode control. The 1050 V-BV power MOSFET allows to extend input voltage range, and reduce the size of the DRAIN snubber circuit. This IC meets the most stringent energy-saving standards as it has very low consumption and operates in burst mode under light load.