Datasheet VIPER222 (STMicroelectronics) - 2

VIPER222 Pin setting 1 Pin setting Figure 2. Connection diagram
GND 1 10 DRAIN VCC 2 9 DRAIN NC 3 8 DRAIN EA-IN 4 7 DRAIN EA-OUT 5 6 DRAIN
Table 1. Pin description SSOP10 Name Function
Connected to the source of the internal power MOSFET and controller ground 1 GND reference. Supply voltage of the control section. This pin provides the charging current of the 2 VCC external capacitor. 3 NC Not connected. The pin must be connected to GND pin. 4 EA-IN Input of the error amplifier. 5 EA-OUT Output of the error amplifier. High voltage drain pin. The start-up bias current is drawn from this pin too. Connect 6-10 DRAIN to a PCB copper area to facilitate the heat dissipation.
DS13192
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Rev 2 page 2/20
Document Outline Cover image Product status link / summary Features Application Description 1 Pin setting 2 Typical power capability 3 Electrical and thermal ratings 4 Electrical characteristics 5 Typical electrical characteristics 6 General description 6.1 Startup 6.2 Feedback loop 6.3 Pulse skipping 6.4 Burst mode at light load 6.5 Short-circuit protection 6.6 VCC clamp protection 7 Basic application schematics 8 Package information 8.1 SSOP10 package information Revision history Contents List of tables List of figures