TVS Diode Arrays (SPA Diodes) General Purpose ESD Protection - SP725 Series RoHS Pb GREEN SP725 Series 5pF 8kV Diode Array Description The SP725 is an array of SCR/Diode bipolar structures for ESD and overvoltage protection of sensitive input circuits. The SP725 has 2 protection SCR/Diode device structures per input. There are a total of 4 available inputs that can be used to protect up to 4 external signal or bus lines. Over- voltage protection is from the IN (Pins 1 - 4) to V+ or V-. The SCR structures are designed for fast triggering at a threshold of one +V diode threshold above V+ (Pin 5,6) BE or one V diode threshold below V- (Pin 7,8). From an BE IN input, 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 BE a negative pulse, one V less than V-, is applied to an IN Pinout BE input. 8 V- In 1 Refer to Fig 1 and Table 1 for further details. Refer to SP725 Application Note AN9304 and AN9612 for further detail. 2 In 7 V- (SOIC) 3 6 V+ In Features 4 V+ In 5 ESD Interface per HBM Standards - IEC 61000-4-2, Direct Discharge .......... 8kV (Level 4) - IEC 61000-4-2, Air Discharge ...............15kV (Level 4) Functional Block Diagram - MIL-STD-3015.7 .................................................25kV Peak Current Capability - IEC 61000-4-5 8/20 s Peak Pulse Current ..... 14 A - Single Transient Pulse, 100 s Pulse Width ...... 8 A Designed to Provide Over-Voltage Protection - Single-Ended Voltage Range to ........................ +30V - Differential Voltage Range to ............................ 15V Fast Switching ..............................................2ns Risetime Low Input Leakages ..........................5 nA at 25 C Typical Low Input Capacitance ....................................5 pF Typical An Array of 4 SCR/Diode Pairs Operating Temperature Range..................-40 C to 105 C Additional Information Applications Microprocessor/Logic Analog Device Input 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 - SP725 Series Absolute Maximum Ratings Thermal Information Parameter Rating Units Parameter Rating Units o Thermal Resistance (Typical, Note 1) C/W Continuous Supply Voltage, (V+) - (V-) +35 V JA o Forward Peak Current, I to V , I to GND SOIC Package 170 C/W IN CC IN 8, 100 s A (Refer to Figure 5) o Storage Temperature Range -65 to 150 C Peak Pulse Current, 8/20s 14 A o Maximum Junction Temperature 150 C ESD Ratings and Capability (Figure 1, Table 1) Maximum Lead Temperature o 260 C Load Dump and Reverse Battery (Note 2) (Soldering 20-40s) (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. 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 IN to V- V - 2 - V FWDL I = 2A (Peak Pulse) IN 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) - 0.5 - FWD FWD Input Capacitance C 5 - pF IN Input Switching Speed t - 2 - ns ON Notes: 1. is measured with the component mounted on an evaluation PC board in free air JA 2. In automotive and battery operated systems, the power supply lines should be externally protected for load dump and reverse 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 SP725 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 information to determine peak current and dissipation under EOS conditions. Typical Application of the SP725 (Application as an Input Clamp for Overvoltage, 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