Contents
VIPer01
Contents
1
2
Pin setting........................................................................................5
Electrical and thermal ratings ........................................................6
2.1
Electrical characteristics....................................................................8
3
4
Typical electrical characteristics..................................................12
General description.......................................................................16
4.1
Block diagram .................................................................................16
Typical power capability..................................................................16
Primary MOSFET............................................................................17
High voltage startup ........................................................................17
Soft-start .........................................................................................19
Oscillator.........................................................................................19
Pulse-skipping.................................................................................19
Direct feedback ...............................................................................21
Secondary feedback .......................................................................21
Pulse frequency modulation............................................................21
Overload protection.........................................................................22
Max. duty cycle counter protection..................................................22
VCC clamp protection .....................................................................23
Disable function...............................................................................23
Thermal shutdown...........................................................................25
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
5
6
Application information ................................................................26
5.1
5.3
5.4
Typical schematics..........................................................................26
Energy saving performance ............................................................29
Layout guidelines and design recommendations ............................30
Package information .....................................................................32
6.1
SSOP10 package information.........................................................32
7
8
Ordering information.....................................................................34
Revision history ............................................................................35
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DocID028751 Rev 1