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SP721ABTG Datasheet(PDF) 3 Page - Littelfuse |
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SP721ABTG Datasheet(HTML) 3 Page - Littelfuse |
3 / 6 page © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/13 TVS Diode Arrays (SPA®Diodes) General Purpose ESD Protection - SP721 Series ESD Capability ESD capability is dependent on the application and defined test standard.The evaluation results for various test standards and methods based on Figure 1 are shown in Table 1. For the “Modified”MIL-STD-3015.7 condition that is defined as an “in-circuit” method of ESD testing, the V+ and V- pins have a return path to ground and the SP721 ESD capability is typically greater than 15kV from 100pF through 1.5kΩ.By strict definition of MIL-STD-3015.7 using “pin-to-pin”device testing, the ESD voltage capability is greater than 6kV.The MIL-STD-3015.7 results were determined from AT&T ESD Test Lab measurements. The HBM capability to the IEC 61000-4-2 standard is greater than 15kV for air discharge (Level 4) and greater than 4kV for direct discharge (Level 2).Dual pin capability (2 adjacent pins in parallel) is well in excess of 8kV (Level 4). For ESD testing of the SP721 to EIAJ IC121 Machine Model (MM) standard, the results are typically better than 1kV from 200pF with no series resistance. Standard Type/Mode R D C D ±V D MIL STD 3015.7 Modified HBM 1.5kΩ 100pF 15kV Standard HBM 1.5kΩ 100pF 6kV IEC 61000-4-2 HBM, Air Discharge 330Ω 150pF 15kV HBM, Direct Discharge 330Ω 150pF 4kV HBM, Direct Discharge, Two Parallel Input Pins 330Ω 150pF 8kV EIAJ IC121 Machine Model 0kΩ 200pF 1kV H.V. SUPPLY VD IN DUT CD R1 IEC 1000-4-2: R150 to 100M RD CHARGE SWITCH DISCHARGE SWITCH MIL-STD-3015.7: R 11 to 10M 100 80 60 40 20 0 T A = 25ºC SINGLE PULSE 2.5 2 1.5 1 0.5 0 V FWD IFWD EQUIV. SAT. ON THRESHOLD ~ 1.1V 600 800 1000 1200 FORWARD SCR VOLTAGE DROP (mV) 0 1 2 3 FORWARD SCT VOLTAGE DROP (V) T A = 25ºC SINGLE PULSE 100 80 60 40 20 0 T A = 25ºC SINGLE PULSE 2.5 2 1.5 1 0.5 0 V FWD IFWD EQUIV. SAT. ON THRESHOLD ~ 1.1V 600 800 1000 1200 FORWARD SCR VOLTAGE DROP (mV) 0 1 2 3 FORWARD SCT VOLTAGE DROP (V) T A = 25ºC SINGLE PULSE Figure 1: Electrostatic Discharge Test Table 1: ESD Test Conditions Figure 3: High Current SCR ForwardVoltage Drop Curve Figure 2: Low Current SCR Forward Voltage Drop Curve |
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