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SP720 Scheda tecnica(PDF) 2 Page - Littelfuse |
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SP720 Scheda tecnica(HTML) 2 Page - Littelfuse |
2 / 6 page 234 www .littelfuse .com SP720 TVS Diode Arrays Electronic Protection Array for ESD and Overvoltage Protection 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 SP720 ESD capability is typically greater than 15kV from 100pF through 1.5k Ω. 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 SP720 to EIAJ IC121 Machine Model (MM) standard, the results are typically better than 1kV from 200pF with no series resistance. Absolute Maximum Ratings Continuous Supply Voltage, (V+) - (V-). . . . . . . . . . . . . . . . . . . . . . . . . +35V Forward Peak Current, IIN to VCC, IIN to GND (Refer to Figure 6) . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2A, 100µs ESD Ratings and Capability (Figure 1, Table 1) Load Dump and Reverse Battery (Note 2) Thermal Information Thermal Resistance (Typical, Note 1). . . . . . . . . . . . . . . . . . . . . θJA (oC/W) PDIP Package .. .. ... ... .. ... ... ... .. ... ... ... .. ... ... .. ...90 SOIC Package .. .. ... ... ... .. ... ... ... .. ... ... .. ... ... ... 130 Maximum Storage Temperature Range . . . .. . . . . . . . . . . . . . . -65oC to 150oC Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . . . . . . . . . . . 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . .. . . . . . .. . . . . . . . . .300oC (SOIC Lead Tips Only) CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 1. θJA is measured with the component mounted on an evaluation PC board in free air. Electrical Specifications TA = -40oC to 105oC; VIN = 0.5VCC , Unless Otherwise Specified PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Operating Voltage Range, VSUPPLY = [(V+) - (V-)] VSUPPLY - 2 to 30 - V Forward Voltage Drop: IN to V- IN to V+ VFWDL VFWDH IIN = 1A (Peak Pulse) - - 2 2 - - V V Input Leakage Current IIN -20 5 20 nA Quiescent Supply Current IQUIESCENT - 50 200 nA Equivalent SCR ON Threshold Note 3 - 1.1 - V Equivalent SCR ON Resistance VFWD/IFWD; Note 3 - 1 - Ω Input Capacitance CIN 3pF Input Switching Speed tON 2ns NOTES: 2. In automotive and battery operated systems, the power supply lines should be externally protected for load dump and reverse battery. When the V+ and V- pins are connected to the same supply voltage source as the device or control line under protection, a current limiting resistor should be connected in series between the external supply and the SP720 supply pins to limit reverse battery current to within the rated maximum limits. Bypass capacitors of typically 0.01 µF or larger from the V+ and V- pins to ground are recommended. 3. Refer to the Figure 3 graph for definitions of equivalent “SCR ON Threshold” and “SCR ON Resistance.” These characteristics are given here for thumb-rule information to determine peak current and dissipation under EOS conditions. - - - - STANDARD TYPE/MODE R D CD ±VD MIL STD 3015.7 Modified HBM 1.5k Ω 100pF 15kV Standard HBM 1.5k Ω 100pF 6kV IEC 61000-4-2 HBM, Air Discharge 330 Ω 150pF 15kV HBM, Direct Discharge 330 Ω 150pF 4kV HBM, Direct Discharge, Two Parallel Input Pins 330 Ω 150pF 8kV EIAJ IC121 Machine Model 0k Ω 200pF 1kV H.V. SUPPLY °±VD IN DUT CD R1 IEC 1000-4-2: R1 50 to 100MΩ RD CHARGE SWITCH DISCHARGE SWITCH MIL STD 3015.7: R 1 1 to 10MΩ FIGURE 1. ELECTROSTATIC DISCHARGE TEST TABLE 1. ESD TEST CONDITIONS |
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