viper53 STMicroelectronics, viper53 Datasheet

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viper53

Manufacturer Part Number
viper53
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of viper53

Case
SOP
Date_code
10+

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TYPICAL OUTPUT POWER CAPABILITY
Note:
FEATURES
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n
n
n
n
n
n
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n
BLOCK DIAGRAM
June 2004
DIP-8
PowerSO-10
SWITCHING FREQUENCY UP TO 300 kHz
CURRENT LIMITATION
CURRENT MODE CONTROL WITH
ADJUSTABLE LIMITATION
SOFT START AND SHUT DOWN CONTROL
AUTOMATIC BURST MODE IN STAND-BY
CONDITION (“BLUE ANGEL” COMPLIANT)
UNDERVOLTAGE LOCKOUT WITH
HYSTERESIS
HIGH VOLTAGE STARTUP CURRENT
SOURCE
OVERTEMPERATURE PROTECTION
OVERLOAD AND SHORT-CIRCUIT CONTROL
TYPE
Above power capabilities are given under adequate
thermal conditions
®
VDD
(195 - 265 Vac)
11.5V
15V
18V
8.4/
European
OVERVOLTAGE
COMPARATOR
COMPARATOR
50W
65W
AMPLIFIER
ERROR
UVLO
ON/OFF
4.35V
US / Wide range
0.5V
(85 - 265 Vac)
OVERTEMP.
DETECTOR
COMPARATOR
COMPARATOR
OVERLOAD
STANDBY
30W
40W
LATCH
PWM
OSCILLATOR
R1
R2
R3
OSC
FF
R4
S
R5
Q
DESCRIPTION
The VIPer53 combines in the same package an
enhanced current mode PWM controller with a
high voltage MDMesh Power Mosfet. Typical
applications cover off line power supplies with a
secondary power capability ranging up to 30W in
wide range input voltage or 50W in single
European voltage range and DIP-8 package, with
the following benefits:
– Overload
– Efficient standby mode by enhanced pulse
– Primary regulation or secondary loop failure
OFF LINE PRIMARY SWITCH
feedback monitoring and delayed device reset.
skipping.
protection through high gain error amplifier.
4.5V
BLANKING
150/400ns
4V
DIP-8
BLANKING TIME
TOVL
8V
SELECTION
COMPARATOR
and
125k
PWM
short circuit
1V
0.5V
VIPer53DIP
COMP
VIPer53SP
PowerSO-10™
10
AMPLIFIER
CURRENT
H
COMP
SOURCE
DRAIN
controlled
1
1/24
by

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