SP720

SP720 Data Sheet January 1998 File Number 2791.10 Electronic Protection Array for ESD and Over-Voltage Protection [ /Title (SP720 ) /Subject (Electronic Protection Array for ESD and OverVoltage Protection) /Autho r () /Keywords (TVS, Transient Suppression, Protection, ESD, IEC, EMC, Electromagnet ic ComThe 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 +VBE diode threshold above V+ (Pin 16) or a -VBE diode threshold below V- (Pin 8). From an 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 VBE above V+. A similar clamp to V- is activated if a negative pulse, one VBE less than V-, is applied to an IN input. Standard ESD Human Body Model (HBM) Capability is: HBM STANDARD IEC 1000-4-2 Air Direct Direct, Dual Pins MIL-STD-3015.7 Direct, In-circuit MODE R 330Ω 330Ω 330Ω 1.5kΩ C 150pF 150pF 150pF 100pF ESD (V) >15kV >4kV >8kV >15kV Features ESD Interface Capability for HBM Standards - MIL STD 3015.7 . . . . . . . . . . . . . . . . . . . . . . . . . . .15kV - IEC 1000-4-2, Direct Discharge, Single Input. . . . . . . . . . . . . . . . . ...