VIPER22ADIP-E datasheet(2/20 Pages) STMICROELECTRONICS | Low Power OFF-Line SMPS Primary Switcher

Part No.	VIPER22ADIP-E

Description	Low Power OFF-Line SMPS Primary Switcher

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2 / 20 page

Contents

VIPer22ADIP/ VIPer22AS - E

2/20

Rev1

Contents

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1

Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Thermal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pin Connections and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1

Rectangular U-I Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.2

Wide Range of VDD Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.3

Feedback Pin Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.4

Startup sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.5

Overvoltage threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Operation pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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