VIPER22ASTR-E STMicroelectronics, VIPER22ASTR-E Datasheet - Page 14

• Manufacturer Part Number: VIPER22ASTR-E
• Description: IC OFFLINE SWIT PWM SMPS 8SOIC
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of VIPER22ASTR-E

• Output Isolation: Isolated
• Frequency Range: 54 ~ 66kHz
• Voltage - Input: 8 ~ 50 V
• Voltage - Output: 730V
• Power (watts): 7W
• Operating Temperature: 25°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Dc: 1036
• For Use With: 497-9049 - BOARD EVAL BASED VIPER22ASTR-E497-8215 - BOARD EVAL BASED ON VIPER22A497-5864 - EVAL BOARD DUAL OUTPUT VIPER22A497-5071 - EVAL BOARD DIMMABLE HB PWR LEDVIPER22-LED-EV - VIPER LED POWER SUPPLY
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8167-2; VIPER22ASTR-E

Operation pictures
14/21
Figure 12. Peak drain current vs feedback current
Figure 13. Thermal shutdown
The drain current limitation is
obtained for VFB = 0 V, and a
negative current is drawn from
the FB pin. See the Application
section for further details.
I
Dpeak
I
D
1/F
OSC
I
FBsd
⋅
R
Doc ID 12050 Rev 2
FB
I
V
Dpeak
0
FB
I
Dlim
t
18V
G
ID
=
I
–
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
FB
Δ
----------------------- -
I
Dpeak
Δ
I FB
47nF
I
FBsd
FB
VIPer22A
VDD
CONTROL
I
I
FB
FB
SOURCE
DRAIN
4mH
100V
100V