Datasheet STMicroelectronics VIPER22ASTR-E — Даташит

VIPer22A-E
VIPer22ADIP-E, VIPer22AS-E
Low power OFF-line SMPS primary switcher
Features
в–  Fixed 60 kHz switching frequency в–  9 V to 38 V wide range VDD voltage в–  Current mode control в–  Auxiliary undervoltage lockout with hysteresis в–  High voltage start-up current source в–  Overtemperature, overcurrent and overvoltage
protection with auto-restart Table 1. SO-8 Typical applications cover off line power supplies
for battery charger adapters, standby power
supplies for TV or monitors, auxiliary supplies for
motor control, etc. The internal control circuit
offers the following benefits: Typical power capability
Mains type SO-8 DIP-8 European (195 -265 Vac) 12 W 20 W US / wide range (85 -265 Vac) 7W 12 W DIP-8 Large input voltage range on the VDD pin
accommodates changes in auxiliary supply
voltage. This feature is well adapted to battery
charger adapter configurations.
Automatic burst mode in low load condition. Description Overvoltage protection in HICCUP mode. The VIPer22A-E combines a dedicated current
mode PWM controller with a high voltage power
MOSFET on the same silicon chip.
Figure 1. Block diagram
DRAIN ON/OFF
60kHz
OSCILLATOR REGULATOR INTERNAL
SUPPLY OVERTEMP.
DETECTOR R1 S …