VIPER22ADIP STMicroelectronics, VIPER22ADIP Datasheet - Page 2

IC OFFLINE SWIT PWM SMPS 8DIP

VIPER22ADIP

Manufacturer Part Number
VIPER22ADIP
Description
IC OFFLINE SWIT PWM SMPS 8DIP
Manufacturer
STMicroelectronics
Series
VIPER™r
Datasheet

Specifications of VIPER22ADIP

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)
Mounting Style
Through Hole
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
497-3286-5

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VIPer22ADIP / VIPer22AS
PIN FUNCTION
CURRENT AND VOLTAGE CONVENTIONS
CONNECTION DIAGRAM
2/15
SOURCE
DRAIN
Name
V
FB
DD
Power supply of the control circuits. Also provides a charging current during start up thanks to a high
voltage current source connected to the drain. For this purpose, an hysteresis comparator monitors the
V
- V
current source.
- V
source.
Power MOSFET source and circuit ground reference.
Power MOSFET drain. Also used by the internal high voltage current source during start up phase for
charging the external V
Feedback input. The useful voltage range extends from 0V to 1V, and defines the peak drain MOSFET
current. The current limitation, which corresponds to the maximum drain current, is obtained for a FB pin
shorted to the SOURCE pin.
DD
DDoff
DDon
SOURCE
SOURCE
voltage and provides two thresholds:
: Voltage value (typically 14.5V) at which the device starts switching and turns off the start up
: Voltage value (typically 8V) at which the device stops switching and turns on the start up current
VDD
FB
1
2
3
4
SO-8
V
DD
DD
I
DD
capacitor.
V
8
7
6
5
FB
I
DRAIN
DRAIN
DRAIN
DRAIN
FB
VIPer22A
FB
VDD
CONTROL
Function
SOURCE
DRAIN
SOURCE
SOURCE
VDD
FB
I
D
1
2
3
4
V
D
DIP8
8
7
6
5
DRAIN
DRAIN
DRAIN
DRAIN

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