DESCRIPTIONVIPer50™/50A, made using VIPower M0 Technology, combines on the same silicon chip a state-of-the-art PWM circuit together with an optimized high voltage avalanche rugged Vertical Power MOSFET (620V or 700V / 1.5A).
Typical applications cover off line power supplies with a secondary power capability of 25W in wide range condition and 50W in single range or with doubler configuration. It is compatible from both primary or secondary regulation loop despite using around 50% less components when compared with a discrete solution. Burst mode operation is an additional feature of this device, offering the possibility to operate in stand-by mode without extra components.

■ ADJUSTABLE SWITCHING FREQUENCY UP TO 200 kHz■ CURRENT MODE CONTROL
■ SOFT START AND SHUT DOWN CONTROL
■ AUTOMATIC BURST MODE OPERATION IN
STAND-BY CONDITION ABLE TO MEET
“BLUE ANGEL” NORM (<1W TOTAL POWER CONSUMPTION)
■ INTERNALLY TRIMMED ZENER REFERENCE
■ UNDERVOLTAGE LOCK-OUT WITH HYSTERESIS
■ INTEGRATED START-UP SUPPLY
■ AVALANCHE RUGGED
■ OVERTEMPERATURE PROTECTION
■ LOW STAND-BY CURRENT
■ ADJUSTABLE CURRENT LIMITATION

Manufacturer	STMicroelectronics
Product Category	AC DC Converters, Offline Switchers
Series	VIPER™
Type	PWM Low-Standby High Performance Controller
Packaging	Alternate Packaging
Mounting-Style	SMD/SMT
Package-Case	PowerSO-10 Exposed Bottom Pad
Operating-Temperature	-
Mounting-Type	Surface Mount
Supplier-Device-Package	10-PowerSO
Watt	50W
Number-of-Outputs	1 Output
Output-Isolation	Isolated
Internal-Switch-s	Yes
Voltage-Breakdown	700V
Topology	Flyback
Voltage-Start-Up	11V
Voltage-Supply-Vcc-Vdd	8 V ~ 15 V
Duty-Cycle	-
Frequency-Switching	Up to 200kHz
Fault-Protection	Current Limiting, Over Temperature
Control-Features	Frequency Control, Soft Start, Sync
Output-Voltage	700 V
Operating-Supply-Current	14 mA
Output-Current	1.5 A
Switching-Frequency	100 kHz
Package-Case	PowerSO-10
Duty-Cycle-Max	50 %
Input-Supply-Voltage-Min	12.6 V
Input-Supply-Voltage-Max	13.4 V