Dual-

Line ESD Protection Array

STE0512

Working voltage 5V

APPLICATION NOTE

Device Connection for Protection of Two Data Lines

STE0512 is designed to protect up to two data lines. The device is connected as follows:

1. The TVS protection of two I/O lines is achieved by connecting pins 1,2 to the data lines.

Pin 3 is connected to ground. The ground connection should be made directly to the

ground plane for best results. The path length is kept as short as possible to reduce the

effects of parasitic inductance.

Circuit Board Layout Recommendations for Suppression of ESD

Good circuit board layout is critical for the suppression of ESD induced transients. The

following guidelines are recommended:

1. Place the TVS near the input terminals or connectors to restrict transient coupling.

2. Minimize the path length between the TVS and the protected line.

3. Minimize all conductive loops including power and ground loops.

4. The ESD transient return path to ground should be kept as short as possible.

5. Never run critical signals near board edges

6. Use ground planes whenever possible.

Psgr 4

STANSON TECHNOLOGY

120 Bentley Square, Mountain View, Ca 94040 USA

TEL: (650) 9389294 FAX: (650) 9389295