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VIPER100BSP Datasheet

  • VIPER100BSP

  • SMPS PRIMARY I.C.

  • 20頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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VIPer100B
VIPer100BSP
SMPS PRIMARY I.C.
PRELIMINARY DATA
T YPE
VIPer100B/BSP
V
DSS
400V
I
n
6A
R
DS(on)
1.1
鈩?/div>
10
PENTAWATT HV
FEATURE
s
ADJUSTABLE SWITCHING FREQUENCY UP
TO 200KHZ
s
CURRENT MODE CONTROL
s
SOFT START AND SHUT DOWN CONTROL
s
AUTOMATIC BURST MODE OPERATION IN
STAND-BY CONDITION ABLE TO MEET
鈥滲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
BLOCK DIAGRAM
OSC
1
PowerSO-10
PENTAWATT HV
(022Y)
DESCRIPTION
VIPer100B/100BSP, 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 (400 V / 6 A). Typical
applications cover off line power supplies with
a secondary power capability of 100 W in a US
mains lines 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.
DRAIN
ON/OFF
OSCILLATOR
SECURITY
LATCH
V
DD
PWM
LATCH
S
R1 FF Q
R2 R3
UVLO
LOGIC
R/S
FF
S
Q
OVERTEMP.
DETECTOR
0.5V
_
+ +
_
0.5 V
+
_
1.7
s
DELAY
25 0 ns
BLANKING
0. 5V/A
ERROR
_ AMPLIFIER
13 V
+
4.5 V
CURRENT
AMPLIFIER
COMP
SOURCE
FC00231
January 2000
1/20

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