SMPS PRIMARY I.C.
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 (
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
DESCRIPTION
VIPer50™/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.
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