VIPER22ADIP-E STMicroelectronics, VIPER22ADIP-E Datasheet - Page 10

IC OFFLINE SWIT PWM SMPS 8DIP

VIPER22ADIP-E

Manufacturer Part Number
VIPER22ADIP-E
Description
IC OFFLINE SWIT PWM SMPS 8DIP
Manufacturer
STMicroelectronics
Series
VIPER™r
Type
Pulse Width Modulator Controllerr

Specifications of VIPER22ADIP-E

Output Isolation
Isolated
Frequency Range
54 ~ 66kHz
Voltage - Input
8 ~ 50 V
Voltage - Output
730V
Power (watts)
12W
Operating Temperature
25°C ~ 125°C
Package / Case
8-DIP (0.300", 7.62mm)
Output Voltage
38 V
Output Power
12 W
Input Voltage
0 V to 50 V
Switching Frequency
60 KHz
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Current, Supply
4.5 mA
Frequency, Oscillator
60 kHz
Package Type
DIP-8
Regulator Type
Switching
Resistance, Thermal, Junction To Case
15 °C/W
Temperature, Operating, Range
-40 to +150 °C
Time, Fall
100 ns
Time, Rise
50 ns
Voltage, Supply
18 V
Supply Voltage
38V
Digital Ic Case Style
DIP
No. Of Pins
8
No. Of Regulated Outputs
1
Filter Terminals
DIP
Rohs Compliant
Yes
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
497-7694-5
VIPER22ADIP-E

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Operations
10/21
Figure 6.
It is then possible to build the total DC transfer function between I
Figure 6 on page 10
associated minimum turn on time. This imposes a minimum drain current under which the
device is no more able to control it in a linear way. This drain current depends on the primary
inductance value of the transformer and the input voltage. Two cases may occur, depending
on the value of this current versus the fixed 85 mA value, as described above.
I
FB
transfer function
. This figure also takes into account the internal blanking time and its
t
---------------------------------------- -
t
---------------------------------------- -
ONmin
ONmin
L
L
85mA
V
V
1
2
I
IN
IN
Doc ID 12050 Rev 2
Dpeak
0
I
Dlim
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
I
FBsd
Part
threshold
masked
by
D
the
and I
I
I
FBsd
FB
FB
as shown on

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