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SP724 Datasheet(PDF) 2 Page - Littelfuse |
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SP724 Datasheet(HTML) 2 Page - Littelfuse |
2 / 6 page 247 www .littelfuse .com 5 TVS Diode Arrays SP724 SCR Diode Array for ESD and Transient Overvoltage Protection Absolute Maximum Ratings Continuous Supply Voltage, (V+) - (V-). ........................ +20V Forward Peak Current, IIN to VCC , GND (Refer to Figure 6). ................................±2.2A, 100µs ESD Ratings and Capability - See Figure 1, Table 1 Thermal Information Thermal Resistance (Typical, Note 3) θJA ( o C/W) SOT Package . ........................................... 220 Maximum Storage Temperature Range...................... .-65oC to 150oC Maximum Junction Temperature . .............................150oC Maximum Lead Temperature (Soldering 10s) . ........................300oC (SOT - Lead Tips Only) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Operating Voltage Range, VSUPPLY = [(V+) - (V-)] (Notes 4, 5) VSUPPLY 1 - 20 V Forward Voltage Drop IN to V- VFWDL IIN = 1A (Peak Pulse) - 2 - V IN to V+ VFWDH -2- V Input Leakage Current IIN -10 1 10 nA Quiescent Supply Current IQUIESCENT V+ = 20V, V- = GND - - 100 nA Equivalent SCR ON Threshold (Note 6) - 1.1 - V Equivalent SCR ON Resistance VFWD/IFWD (Note 6) - 1.0 - Ω Input Capacitance CIN -3- pF NOTES: 4. In automotive and other battery charging systems, the SP724 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 SP724 supply pins to limit reverse battery current to within the rated maximum limits. 5. Bypass capacitors of typically 0.01µF or larger should be connected closely between the V+ and V- Pins for all applications. 6. Refer to the Figure 3 graph for definitions of equivalent “SCR ON Threshold” and “SCR ON Resistance”. These characteristics are given here for information to determine peak current and dissipation under EOS conditions. ESD Rating ESD rating is dependent on the defined test standard. The evaluation results for various test standards and methods based on Figure 1 are shown in Table 1.3 The SP724 has a Level 4 rating when tested to the IEC 61000-4-2 Human Body Model (HBM) standard and connected in a circuit in which the V+ and V- pins have a return path to ground. Level 4 specifies a required capability greater than 8kV for direct discharge and greater than 15kV for air discharge. The “Modified” MIL-STD-3015.7 condition is defined as an “in-circuit” method of ESD testing, the V+ and V- pins have a return path to ground.The SP724 ESD capability is greater than 8kV with 100pF discharged through 1.5kΩ. By strict definition of the standard MIL- STD-3015.7 method using “pin-to-pin” device testing, the ESD voltage capability is greater than 2kV. For the SP724 EIAJ IC121 Machine Model (MM) standard, the ESD capa- bility is typically greater than 1.8kV with 200pF discharged through 0kΩ. The Charged Device model is based upon the self-capacitance of the SOT-23 package through 0kΩ. 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: 3. 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 STANDARD TYPE/MODE RD CD ±VD IEC 61000-4-2 (Level 4) HBM, Air Discharge 330Ω 150pF 15kV HBM, Direct Discharge 330Ω 150pF 8kV MIL-STD-3015.7 Modified HBM 1.5kΩ 100pF 8kV † Standard HBM 1.5kΩ 100pF 2kV EIAJ IC121 Machine Model 0kΩ 200pF 400V US ESD DS 5.3 Charged Device Model 0kΩ NA 3kV †Upper limit of laboratory test set. 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 11 to 10MΩ FIGURE 1. ELECTROSTATIC DISCHARGE TEST TABLE 1. ESD TEST CONDITIONS |
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