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PDF VIPer53-E Data sheet ( Hoja de datos )
| Número de pieza | VIPer53-E | |
| Descripción | OFF-line Primary Switch | |
| Fabricantes | STMicroelectronics | |
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VIPer53 - E
OFF-line primary switch
General features
Type
European
(195 - 265Vac)
DIP-8
50W
PowerSO-10TM
65W
US / Wide range
(85 - 265 Vac)
30W
40W
PowerSO-10
DIP-8
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
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
DRAIN
O N/O FF
OSCILLAT OR
VDD
UVLO
C O MPARATO R
8.4/
11.5V
15V
ERROR
AMPLIFIER
O VER VO LTAGE
C O MPARATO R
18V
OVERT EMP.
DET ECT OR
PWM
LATCH
R1 S
FF Q
R2
R3 R4 R5
0.5V
STANDBY
COMPARATOR
4.35V
OVERLOAD
COMPARATOR
BLANKING TIME
SELECTION
1V
150/400ns
BLANKING
PW M
C O MPAR ATO R
4V 8V
125k
0.5V
HCOM P
CURRENT
AMPLIFIER
4.5V
November 2006
Rev 1
T OVL
COMP
SOURCE
1/36
www.st.com
36
1 page  
VIPer53 - E
Electrical characteristics
Table 5. Supply section
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VDSstart
Drain voltage starting
threshold
VDD = 5V; IDD = 0mA
IDDch1
Startup charging current
VDD = 0 ... 5V; VDS = 100V
Figure 5 on page 10
IDDch2 Startup charging current VDD = 10V; VDS = 100VFigure 5.
IDDchoff
Startup charging current
in thermal shutdown
VDD = 5V; VDS = 100VFigure 7.
TJ > TSD - THYST
IDD0
Operating supply current
not switching
Fsw = 0kHz; VCOMP = 0V
IDD1
Operating supply current
switching
Fsw = 100kHz
VDDoff
VDD undervoltage
shutdown threshold
Figure 5 on page 10
VDDon VDD startup threshold
Figure 5.
VDDhyst VDD threshold hysteresis Figure 5.
VDDovp
VDD Overvoltage
shutdown threshold
Figure 5.
0
7.5
10.2
2.6
17
34
-12
-2
8
9
8.4
11.5
3.1
18
50
11
9.3
12.8
19
V
mA
mA
mA
mA
mA
V
V
V
V
Table 6. Error amplifier section
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VDDreg VDD regulation point
∆VDDreg
VDD regulation point
total variation
GBW Unity gain bandwidth
AVOL Voltage gain
Gm DC transconductance
VCOMPlo Output low level
VCOMPhi Output high level
ICOMPlo Output sinking current
ICOMPhi Output sourcing current
ICOMP = 0mA
Figure 11. on page 11
ICOMP = 0mA; TJ = 0 ... 100°C
From Input = VDD to Output =
VCOMP
ICOMP = 0mA Figure 14 and 15
ICOMP = 0mA Figure 14 and 15
VCOMP = 2.5V Figure 11.
ICOMP = -0.4mA; VDD = 16V
ICOMP = 0.4mA; VDD=14V(1)
VCOMP = 2.5V; VDD = 16V
Figure 11. on page 11
VCOMP = 2.5V; VDD= 14V
Figure 11.
14.5 15 15.5 V
2%
700 kHz
40 45
dB
1 1.4 1.8 mS
0.2 V
4.5 V
-0.6 mA
0.6 mA
1. In order to insure a correct stability of the error amplifier, a capacitor of 10nF (minimum value: 8nF) should
always be present on the COMP pin.
5/36
5 Page 
VIPer53 - E
Figure 9. Shutdown action
VOSC
VOSChi
VOSClo
VCOMP
VCOMPoff
ID
Operation pictures
Figure 10. Comp pin gain and offset
IDpeak
t
IDlim
IDmax
t
Slope = 1 / HCOMP
VCOMPos
VCOMP
VCOMPovl VCOMPhi
t
Figure 11. Output characteristics
ICOMP
ICOMPhi
Slope = Gm
VDDreg
VDD
0
ICOMPlo
11/36
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet VIPer53-E.PDF ] | |
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