Tvs Diode Array Spa Diodes Page 33 TVS Diode Array SPA Diodes Catalog

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/17 TVS Diode Arrays (SPA Diodes) General Purpose ESD Protection - SP724 Series Description Features An Array of 4 SCR/Diode Pairs in 6-Lead SOT-23 ESD Capability per HBM Standards - IEC 61000-4-2, Direct Discharge .......... 8kV (Level 4) - IEC 61000-4-2, Air Discharge ...............15kV (Level 4) - MIL STD 3015.7 ................................................ >8kV Input Protection for Applications with Power Supplies Up to +20V (Single-Ended Voltage), and 10V (Differential Voltage) Peak Current Capability - IEC 61000-4-5 (8/20s) .......................................3A - Single Pulse, 100s Pulse Width .....................2.2A Low Input Leakage .......................................... 1nA Typical Low Input Capacitance.....................................3pF Typical Operating Temperature Range....................-40C to 105C Applications The SP724 is a quad array of transient voltage clamping circuits designed to suppress ESD and other transient over- voltage events. The SP724 is used to help protect sensitive digital or analog input circuits on data, signal, or control lines operating on power supplies up to 20VDC. The SP724 is comprised of bipolar SCR/diode structures to protect up to four independent lines by clamping transients of either polarity to the power supply rails. The SP724 offers very low leakage (1nA Typical) and low input capacitance (3pF Typical). Additionally, the SP724 is rated to withstand the IEC 61000-4-2 ESD specification for both contact and air discharge methods to level 4. The SP724 is connected to the sensitive input line and its associated power supply lines. Clamping action occurs during the transient pulse, turning on the diode and fast triggering SCR structures when the voltage on the input line exceeds one V BE threshold above the V+ supply (or one V BE threshold below the V- supply). Therefore, the SP724P operation is unaffected by poor power supply regulation or voltage fluctuations within its operating range. Microprocessor/Logic Input Protection Data Bus Protection Analog Device Input Protection Voltage Clamp Pinout Functional Block Diagram 2 V+ V- IN 3, 4 AND 6 IN 1 5 I/O V+ I/O V- 6 5 4 1 2 3 SP724 (SOT-23) TOP VIEW Notes: 1. The design of the SP724 SCR/Diode ESD Protection Arrays are covered by Littelfuse patent 4567500. 2. The full ESD capability of the SP724 is achieved when wired in a circuit that includes connection to both the V+ and V- pins. When handling individual devices, follow proper procedures for electrostatic discharge. 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. RoHS Pb GREEN SP724 Series 3pF 8kV Diode Array Additional Information Datasheet Samples Resources

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