VIPER20-E STMicroelectronics, VIPER20-E Datasheet - Page 20

• Manufacturer Part Number: VIPER20-E
• Description: IC SWIT SMPS CM OTP PENTAWATT5
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of VIPER20-E

• Output Isolation: Isolated
• Frequency Range: 90 ~ 200kHz
• Voltage - Input: 8 ~ 15 V
• Voltage - Output: 620V
• Power (watts): 57W
• Operating Temperature: 25°C ~ 125°C
• Package / Case: Pentawatt-5 HV (Bent and Staggered Leads)
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6794-5; VIPER20-E

5 Operation Description
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Figure 17. Mixed Soft Start and Compensation Figure 18. Latched Shut Down
Figure 19. Typical Compensation Network
Figure 21. External Clock Sinchronisation
+ C3
OSC
13V
VDD
C4
-
+
OSC
VIPer20
10 kΩ
COMP
13V
C1
VDD
SOU RCE
R1
DRAIN
+
-
C2
VIPer20
OSC
COMP SOURCE
D1
FC00451
R1
C1
+ C2
13V
VDD
DRAIN
FC00431
R3
R2
+
-
VIPer20
D2
D3
FC00470
COMP SOURCE
AUXILIARY
W INDING
DRAIN
Figure 20. Slope Compensation
Figure 22. Current Limitation Circuit Example
Shutdown
R2
C1
OSC
R1
R3
Q1
R4
13V
VDD
Q2
OSC
R3
13V
+
VDD
-
R1
R2
C2
Q1
R1
R2
+
-
VIPer20
VIPer20
COMP
OSC
COMP SOURCE
FC00480
C3
FC00461
13V
VDD
D1
SOURCE
VIPer20-E/DIP-E
Q1
DRAIN
DRAIN
+
-
VIPer20
FC00440
COMP SOURCE
DRAIN