CM1233 Datasheet, PDF (6/10 Pages) California Micro Devices Corp – PicoGuard XSTM eXtreme Speed ESD Clamp Array For High Speed Data Line Protection

CM1233
Performance Information
Graphical Comparison and Test Setup
Figure 4 shows that the CM1233 (PicoGuard XS ESD protector) lowers the peak voltage and clamping voltage by
45% across a wide range of loading conditions in comparison to a standard ESD protection device. Figure 5 also
indicates that the DUP/ASIC protected by the CM1233 dissipates less energy than a standard ESD protection
device. This data was derived using the test setups shown in Figure 6.
1.2
1
0.8
0.6
0.4
0.2
0
0
V_PEAK
Standard ESD Device
CM1233
5
10
15
20
25
RDUP (Ω)
Figure 4. VPeak (8KV IEC-61000 4-2 ESD Contact Strike) and VClamp vs. Loading (RDUP)*
1.2
1
0.8
0.6
0.4
0.2
0
0
Energy (0-50ns)
Standard ESD Device
CM1233
5
10
15
20
25
RDUP (Ω)
Figure 5. Energy Dissipated in DUP vs RDUP*
* RDUP is the emulated Dynamic Resistance (load) of the Device Under Protection (DUP). See Figure 6.
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6
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Issue A – 03/18/08