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VIPER20A-E Datasheet(PDF) 5 Page - STMicroelectronics

Part No. VIPER20A-E
Description  SMPS primary I.C.
Download  34 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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VIPER20A-E Datasheet(HTML) 5 Page - STMicroelectronics

 
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VIPer20A-E
Electrical data
5/34
1.2
Electrical characteristics
TJ = 25°C; VDD = 13V, unless otherwise specified
Table 2.
Power section
(1) On Inductive Load, Clamped.
Table 3.
Supply section
Table 4.
Oscillator section
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
BVDS
Drain-Source Voltage
ID = 1mA; VCOMP = 0V
700
V
IDSS
Off-State Drain
Current
VCOMP = 0V; Tj = 125°C
VDS = 700V
1.0
mA
RDS(on)
Static Drain-Source
On Resistance
ID = 0.4A
ID = 0.4A; TJ= 100°C
15.5
18
32
tf
Fall Time
ID = 0.2A; VIN =300V
(1) Figure 7
100
ns
tr
Rise Time
ID = 0.4A; VIN = 300V
(1) Figure 7
50
ns
Coss
Output Capacitance
VDS = 25V
90
pF
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
IDDch
Start-Up Charging Current
VDD = 5V; VDS = 35V
Figure 6, Figure 11
-2
mA
IDD0
Operating Supply Current
VDD = 12V; FSW = 0kHz
Figure 6
12
16
mA
IDD1
Operating Supply Current
VDD = 12V; Fsw = 100kHz
13
mA
IDD2
Operating Supply Current
VDD = 12V; Fsw = 200kHz
14
mA
VDDoff
Undervoltage Shutdown
Figure 6
7.5
8
9
V
VDDon
Undervoltage Reset
Figure 6
11
12
V
VDDhyst
Hysteresis Start-up
Figure 6
2.4
3
V
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
FSW
Oscillator Frequency Total
Variation
RT=8.2KΩ; CT=2.4nF
VDD=9 to 15V;
with RT± 1%; CT± 5%
(see Figure )(see Figure 14)
90
100
110
KHz
VOSCIH
Oscillator Peak Voltage
7.1
V
VOSCIL
Oscillator Valley Voltage
3.7
V


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