Viper12a Schaltung. Introduction to viper12a the viper12a is popular smps buck controller device from the viperxx series of st microelectronics. Auch den viper12a da das schon einmal eine lösung bei der gleichen schaltung eines anderen gerätes brachte.
Stmicroelectronics alldatasheet datasheet datasheet search site for electronic components and semiconductors integrated circuits diodes triacs and other semiconductors. Non isolated power supply viper12a viper22a desinger vıper12 the vıper22 non isolated power supply desinger st microelectronics firm viper from the series viper12 viper22 integrated prepare for the non insulated smps power supply design program especially white leds power leds to run the various circuits can be designed. The controller can convert ac voltage from 85v to 265v and convert it to regulated dc voltage with a maximum output current of 200ma it is commonly used as a replacement for transformerless power supply circuits.
The viper12a combines a dedicated current mode pwm controller with a high voltage power mosfet on the same silicon chip.
Diesmal jedoch wiederholte sich das o g phänomen. Low power off line smps primary switcher viper12a datasheet viper12a circuit viper12a data sheet. Typical applications cover off line power supplies with a secondary power capability ranging from less than 1w to 5w in wide input voltage range and 10w in single european voltage range or with a doubler configuration. Current mode control n auxiliary undervoltage lockout with hysteresis n high voltage start up current source n overtemperature overcurrent and overvoltage protection with autorestart description the viper12a combines a dedicated current mode pwm controller with a high voltage power block diagram regulator internal supply vdd 8 14.
