TVS Diode Arrays (SPA Diodes) General Purpose ESD Protection - SP720 Series RoHS Pb GREEN SP720 Series 3pF 4kV Diode Array Description The SP720 is an array of SCR/Diode bipolar structures for ESD and over-voltage protection to sensitive input circuits. The SP720 has 2 protection SCR/Diode device structures per input. A total of 14 available inputs can be used to protect up to 14 external signal or bus lines. Over-voltage protection is from the IN (pins 1-7 and 9-15) to V+ or V-. The SCR structures are designed for fast triggering at a threshold of one +V diode threshold above V+ (Pin 16) or BE a -V diode threshold below V- (Pin 8). From an IN input, BE a clamp to V+ is activated if a transient pulse causes the input to be increased to a voltage level greater than one V above V+. A similar clamp to V- is activated if a negative BE Pinout pulse, one V less than V-, is applied to an IN input. BE Standard ESD Human Body Model (HBM) Capability is: IN 1 16 V+ IN 2 15 IN Features IN 3 14 IN ESD Interface Capability for HBM Standards IN 4 13 IN SP720 (PDIP, SOIC) IN 5 12 IN - MIL STD 3015.7 ................................................. 15kV TOP VIEW IN 6 11 IN - IEC 61000-4-2, Direct Discharge, IN 7 10 IN - Single Input .......................................... 4kV (Level 2) V- 8 9 IN - Two Inputs in Parallel ............................ 8kV (Level 4) - IEC 61000-4-2, Air Discharge ...............15kV (Level 4) High Peak Current Capability Functional Block Diagram - IEC 61000-4-5 (8/20s) ....................................... 3A - Single Pulse, 100s Pulse Width ........................ 2A - Single Pulse, 4s Pulse Width ............................ 5A Designed to Provide Over-Voltage Protection - Single-Ended Voltage Range to ........................ +30V - Differential Voltage Range to ............................ 15V Fast Switching ..............................................2ns Risetime Low Input Leakages .................................1nA at 25 (Typ) Low Input Capacitance ....................................... 3pF (Typ) An Array of 14 SCR/Diode Pairs Operating Temperature Range....................-40C to 105C Applications Microprocessor/Logic Analog Device Input Additional Information Input Protection Protection Data Bus Protection Voltage Clamp Resources Samples Life Support Note: Not Intended for Use in Life Support or Life Saving Applications The products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/12/17 TVS Diode Arrays (SPA Diodes) General Purpose ESD Protection - SP720 Series Thermal Information Absolute Maximum Ratings Parameter Rating Units Parameter Rating Units o Thermal Resistance (Typical, Note 1) C/W JA Continuous Supply Voltage, (V+) - (V-) +35 V o PDIP Package 90 C/W Forward Peak Current, I to V , I to GND IN CC IN 2, 100s A o (Refer to Figure 5) SOIC Package 130 C/W o Maximum Storage Temperature Range -65 to 150 C 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 Maximum Junction Temperature (Plastic o 150 C at these or any other conditions above those indicated in the operational sections of this Package) specification is not implied. Note: Maximum Lead Temperature o 260 C ESD Ratings and Capability - See Figure 1, Table 1 (Soldering 20-40s) (SOIC Lead Tips Only) Load Dump and Reverse Battery (Note 2) 1. is measured with the component mounted on an evaluation PC board in free air. JA o o Electrical Characteristics T = -40 C to 105 C, V = 0.5V , Unless Otherwise Specified A IN CC Parameter Symbol Test Conditions Min Typ Max Units Operating Voltage Range, V - 2 to 30 - V SUPPLY V = (V+) - (V-) SUPPLY Forward Voltage Drop: I = 1A (Peak Pulse) IN IN to V- V - 2 - V FWDL IN to V+ V - 2 - V FWDH Input Leakage Current I -20 5 20 nA IN Quiescent Supply Current I - 50 200 nA QUIESCENT Equivalent SCR ON Threshold Note 3 - 1.1 - V Equivalent SCR ON Resistance V /I Note 3 - 1 - FWD FWD Input Capacitance C - 3 - pF IN Input Switching Speed t - 2 - ns ON Notes: 2. In automotive and battery operated systems, the power supply lines should be externally protected for load dump and everse battery 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 0.01F 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 nformation to determine peak current and dissipation under EOS conditions. Typical Application of the SP720 (Application as an Input Clamp for Over-voltage, greater than 1V BE Above V+ or less than -1V below V-) BE 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/12/17