VIPER17
Energy saving VIPerPlus: HV switching regulator for flyback converter
Datasheet - production data
Limiting c...
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
Figure 1: Typical topology
Applications
Adapters for PDA, camcorders, shavers, cellular phones, videogames
Auxiliary power supply for LCD/PDP TV, monitors, audio systems, computer, 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
800 V avalanche rugged power section PWM operation with frequency jittering for
low EMI Operating frequency:
60 kHz for L type
cost. Brown-out function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage startup circuit is embedded in the device.
115 kHz for H type
Standby power < 30 mW at 265 VAC
Table 1: Device summary
Order code
Pa...