VIPER53SPE

Manufacturer Part NumberVIPER53SPE
ManufacturerSTMicroelectronics
VIPER53SPE datasheet
 


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General features
European
Type
(195 - 265Vac)
DIP-8
50W
TM
65W
PowerSO-10
Features
Switching frequency up to 300kHz
Current limitation
Current mode control with adjustable limitation
Soft start and shut-down control
Automatic burst mode in standby condition
(“Blue Angel“ compliant )
Undervoltage lockout with Hysteresis
HIgh voltage star-tup current source
Overtemperature protection
Overload and short-circuit control
Block diagram
UVLO
COMPARATOR
VDD
8.4/
11.5V
15V
ERROR
AMPLIFIER
OVERVOLTAGE
COMPARATOR
18V
November 2006
US / Wide range
(85 - 265 Vac)
30W
40W
PowerSO-10
Description
The VIPer53-E combines an enhanced current
mode PWM controller with a high voltage
MDMesh Power Mosfet in the same package.
Typical applications cover offline 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 and short circuit controlled by
feedback monitoring and delayed device reset.
Efficient standby mode by enhanced pulse
skipping.
Primary regulation or secondary loop failure
protection through high gain error amplifier.
OSC
ON/OFF
OSCILLAT OR
PW M
LATCH
OVERT EMP.
S
R1
DET ECT OR
FF
Q
R2
R3 R4 R5
150/400ns
BLANKING
STANDBY
COMPARATOR
0.5V
4V
4.35V
OVERLOAD
COMPARATOR
4.5V
Rev 1
VIPer53 - E
OFF-line primary switch
DIP-8
DRAIN
BLANKING TIME
SELECTION
1V
H
0.5V
COM P
CURRENT
PW M
AMPLIFIER
COMPARATOR
8V
125k
T OVL
COMP
SOURCE
www.st.com
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