VIPER100E

Manufacturer Part NumberVIPER100E
DescriptionSOP-10
ManufacturerSTMicroelectronics
VIPER100E datasheet
 


Specifications of VIPER100E

Date_code08+  
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General Features
V
Type
DSS
VIPer100-E
620V
ADJUSTABLE SWITCHING FREQUENCY UP
TO 200 kHz
CURRENT MODE CONTROL
SOFT START AND SHUTDOWN 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
OVER-TEMPERATURE PROTECTION
LOW STAND-BY CURRENT
ADJUSTABLE CURRENT LIMITATION
Block Diagram
V
DD
ERROR
AMPLIFIER
_
13 V
+
September 2005
I
R
n
DS(on)
3 A
2.5
PENTAWATT HV
Description
VIPer100-E, made using VIPower M0 Technology,
combines on the same silicon chip a state-of-the-
art PWM circuit together with an optimized, high
voltage, Vertical Power MOSFET (620V/ 3A).
Typical applications cover offline power supplies
with a secondary power capability of 50W 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 ability to operate in stand-by mode
without extra components.
OSC
ON/OFF
OSCILLATOR
SECURITY
PWM
LATCH
LATCH
S
FF
UVLO
Q
R1
R/S
Q
FF
LOGIC
S
R2 R3
OVERTEMP.
DETECTOR
1.7 µ s
0.5 V
+
250 ns
_
DELAY
BLANKING
4.5 V
COMP
VIPer100-E
SMPS PRIMARY I.C.
PENTAWATT HV (022Y)
DRAIN
0.5V
_
+
+
1 V/A
_
CURRENT
AMPLIFIER
SOURCE
Rev 1
www.st.com
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