VIPER22AS STMicroelectronics, VIPER22AS Datasheet - Page 6

• Manufacturer Part Number: VIPER22AS
• Description: IC OFFLINE SWIT PWM SMPS 8SOIC
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of VIPER22AS

• 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)
• 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 LED
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3287-5

VIPer22ADIP / VIPer22AS
Figure 4 : Peak Drain Current vs. Feedback Current
Figure 5 : Thermal Shutdown
6/15
V
V
I
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.
DDon
Dpeak
T
DD
T
SD
I
D
j
1/F
OSC
T
HYST
I
FBsd
Automatic
start up
R
FB
I
V
Dpeak
0
FB
I
Dlim
t
t
t
18V
G ID
=
I
FB
–
---------------------- -
I
Dpea k
I FB
47nF
I
FBsd
FB
VIPer22A
VDD
CONTROL
I
I
FB
FB
SOURCE
DRAIN
4mH
100V
100V