VIPER22A
The VIPer22A combines a dedicated current modePWM controller with a high voltage PowerMOSFET on the same silicon chip. Typicalapplications cover off line power supplies forbattery charger adapters, standby power suppliesfor TV or monitors, auxiliary supplies for motorcontrol, etc. The internal control circuit offers the following benefits:- Large input voltage range on the V DD pinaccommodates changes in auxiliary supplyvoltage. This feature is well adapted to batterycharger adapter configurations. - Automatic burst mode in low load condition.- Overvoltage protection in hiccup mode.
1. FIXED 60 KHZ SWITCHING FREQUENCY2. 9V TO 38V WIDE RANGE VDD VOLTAGE3. CURRENT MODE CONTROL4. AUXILIARY UNDERVOLTAGE LOCKOUTWITH HYSTERESIS5. HIGH VOLTAGE START UP CURRENTSOURCE6. OVERTEMPERATURE, OVERCURRENT ANDOVERVOLTAGE PROTECTION WITHAUTORESTART