esd保護(hù)設(shè)計(jì)研討會(huì)(英文)-文庫(kù)吧在線文庫(kù)
【正文】 10IEC 100042:1995 Standard4 Discharge from 150 pF capacitor through 330 ohm resistor4 6 ESD pulses 3 positive, 3 negative4 Used for system characterization4 “Contact” v. “Air” discharge Different levels Different applicationsCalifornia Micro Devices 2023/3/4 下午 01:54:38 11IEC 100042 Current WaveformVery fast rise time: Tr 1nS60nsCalifornia Micro Devices 2023/3/4 下午 01:54:38 12IEC 100042 Test Levels4 Contact discharge is the preferred test method air discharges are not repeatable4 Air discharges used where contact discharge cannot be applied4 No implied equivalence in test severity between the two test methodsCalifornia Micro Devices 2023/3/4 下午 01:54:38 13IEC 100042 Bench Test SpecificationCalifornia Micro Devices 2023/3/4 下午 01:54:38 14ESD Protection Techniques4 Clamp diodes in IC Not sufficient protection 4 Shielding Low effectiveness4 Bypass capacitor or series resistor/inductor Can degrade signal。15 kV)4 What is the downstream clamp voltage? (. 13 V 15 kV HBM pulse)4 What is the contact discharge rating? (. 177。 large board area4 Discrete Zener diodes High capacitance, many ponents。 many ponents。8 kV)4 What is the air discharge rating? (. 177。 low stability。 large board area 4 Spark gap Low cost。15 kV)4 What package? (. 24pin QSOP)California Micro Devices 2023/3/4 下午 01:54:38 17ESD Diode Network Placement
醫(yī)療健康相關(guān)推薦
鄂ICP備17016276號(hào)-1