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VIPER20ADIP Datasheet

  • VIPER20ADIP

  • SMPS PRIMARY I.C.

  • 477.58KB

  • 25頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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廬
VIPer20/SP/DIP
-
VIPer20A/ASP/ADIP
SMPS PRIMARY I.C.
TYPE
VIPer20/SP/DIP
VIPer20A/ASP/ADIP
s
ADJUSTABLE
V
DSS
620V
700V
I
n
0.5 A
0.5 A
R
DS(on)
16
鈩?/div>
18
鈩?/div>
PENTAWATT HV
PENTAWATT HV (022Y)
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
鈥淏LUE ANGEL鈥?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
10
1
PowerSO-10鈩?/div>
DIP-8
DESCRIPTION
VIPer20/20A, 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 / 0.5A).
Typical applications cover off line power supplies
with a secondary power capability of 10W in wide
range condition and 20W 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.
BLOCK DIAGRAM
OSC
DRAIN
ON/OFF
OSCILLATOR
SECURITY
LATCH
VDD
UVLO
LOGIC
R/S
FF
S
Q
PWM
LATCH
R1
S
FF
R2 R3
Q
OVERTEMP.
DETECTOR
0.5 V
+
_
1.7
碌s
delay
250 ns
Blanking
+
_
+
0.5V
_
6 V/A
_
13 V
+
ERROR
AMPLIFIER
CURRENT
AMPLIFIER
4.5 V
COMP
SOURCE
July 2002
FC00491
1/25
1

VIPER20ADIP 產(chǎn)品屬性

  • STMicroelectronics

  • 電流型 PWM 控制器

  • Through Hole

  • PDIP-8

  • Tube

  • 50

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