VIPER100 Datasheet, PDF (1/23 Pages) STMicroelectronics – SMPS PRIMARY I.C.

VIPer100/SP
®
- VIPer100A/ASP
SMPS PRIMARY I.C.
TYPE
VIPer100/SP
VIPer100A/ASP
V_DSS
620V
700V
I_n
R_DS(on)
3A
2.5 Ω
3A
2.8 Ω
s ADJUSTABLE SWITCHING FREQUENCY UP
TO 200 kHz
s CURRENT MODE CONTROL
s SOFT START AND SHUT DOWN CONTROL
s AUTOMATIC BURST MODE OPERATION IN
STAND-BY CONDITION ABLE TO MEET
“BLUE ANGEL” NORM (<1w TOTAL POWER
CONSUMPTION)
s INTERNALLY TRIMMED ZENER REFERENCE
s UNDERVOLTAGE LOCK-OUT WITH
HYSTERESIS
s INTEGRATED START-UP SUPPLY
s AVALANCHE RUGGED
s OVERTEMPERATURE PROTECTION
s LOW STAND-BY CURRENT
s ADJUSTABLE CURRENT LIMITATION
BLOCK DIAGRAM
10
PENTAWATT HV
1
PowerSO-10™
PENTAWATT HV
(022Y)
DESCRIPTION
VIPer100™/100A, 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 / 3A).
Typical applications cover off line power supplies
with a secondary power capability of 50 W in wide
range condition and 100W 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.
OSC
DRAIN
ON/OFF
OSCILLATOR
SECURITY PWM
LATCH
LATCH
VDD
UVLO
LOGIC
R/S ^FF Q
S
R1 _FF Q
S
R2 R3
OVERTEMP.
DETECTOR
0.5 V +
_
ERROR
_ AMPLIFIER
13 V +
4.5 V
1.7 µ s
DELAY
250 ns
BLANKING
0.5V
++ ^_
_
1 V/A
CURRENT
AMPLIFIER
COMP
SOURCE
May 2003
1/23
1