Datasheet VIPER17 (STMicroelectronics) - 2

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Contents VIPER17 Contents 1 Block diagram .. 3 2 Typical power .. 3 3 Pin settings .. 4 4 Electrical data .. 5
4.1 Maximum ratings ... 5 4.2 Thermal data ... 5 4.3 Electrical characteristics .. 6
5 Typical electrical characteristics.. 10 6 Typical circuit .. 13 7 Operation descriptions ... 14
7.1 Power section and gate driver ... 14 7.2 High voltage startup generator .. 14 7.3 Power-up and soft-startup ... 14 7.4 Power down operation .. 17 7.5 Auto restart operation .. 17 7.6 Oscillator ... 17 7.7 Current mode conversion with adjustable current limit set point ... 18 7.8 Overvoltage protection (OVP) ... 18 7.9 About CONT pin .. 20 7.10 Feed-back and overload protection (OLP) .. 20 7.11 Burst-mode operation at no load or very light load .. 23 7.12 Brown-out protection ... 23 7.13 2nd level overcurrent protection and hiccup mode .. 25
8 Package information ... 26
8.1 SO16 narrow package information .. 26 8.2 DIP-7 package information .. 28
9 Revision history .. 30
2/31 DocID14419 Rev 11