CM1233 查看數據表（PDF） - California Micro Devices Corp

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CM1233

PicoGuard XS™ eXtreme Speed ESD Clamp Array For High Speed Data Line Protection

California Micro Devices Corp 

CM1233

Application Information

CM1233 Application and Guidelines

As a general rule, the CM1233 ESD protection array should be located as close as possible to the point of entry of

expected electrostatic discharges with minimum PCB trace lengths to the ground planes and between the signal

input and the ESD device to minimize stray series inductance.

Path of ESD

current pulse

(IESD)

Channel

Output

CM1233

Line Being

Protected

Channel

Input

VCL

VCC

Circuitry Under

Protection

VN

Ground Rail

Figure 8. Application of Positive ESD Pulse Between Input Channel and Ground

Figure 9. Typical PCB Layout

Additional Information

See also California Micro Devices Application Note AP209, “Design Considerations for ESD Protection,” in the

Applications section at www.calmicro.com.

© 2008 California Micro Devices Corp. All rights reserved.

8

490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com

Issue A – 03/18/08

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