VIPER17 Energy saving VIPerPlus: HV switching regulator for flyback converter Datasheet - production data Limiting current with adjustable set point Adjustable and accurate overvoltage protection On-board soft-start Safe auto-restart after a fault condition Hysteresis thermal shutdown Applications Adapters for PDA, camcorders, shavers, cellular phones, videogames Auxiliary power supply for LCD/PDP TV, monitors, audio systems, computer, Figure 1: Typical topology industrial systems, LED driver, No el-cap LED driver SMPS for set-top boxes, DVD players and recorders, white goods Description The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of overcurrent protection, overvoltage and overload protections, hysteresis thermal protection, soft-start and safe auto-restart after any fault condition removal. The burst mode operation and the device’s very low consumption meet the standby energy saving regulations. Features Advance frequency jittering reduces EMI filter cost. Brown-out function protects the switch 800 V avalanche rugged power section mode power supply when the rectified input PWM operation with frequency jittering for voltage level is below the normal minimum level low EMI specified for the system. The high voltage startup Operating frequency: circuit is embedded in the device. 60 kHz for L type 115 kHz for H type Standby power < 30 mW at 265 VAC Table 1: Device summaryOrder codePackagePacking VIPER17LN / VIPER17HN DIP-7 Tube VIPER17HD / VIPER17LD Tube SO16 narrow VIPER17HDTR / VIPER17LDTR Tape and reel February 2017 DocID14419 Rev 11 1/31 This is information on a product in full production. www.st.com