SP721ABG Datasheet PDF - Littelfuse

●The SP721ABG is a TVS Diode Array for general purpose ESD protection. It is an array of SCR/diode bipolar structures for ESD and over-voltage protection to sensitive input circuits. The device has 2 protection SCR/diode structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Over voltage protection is from the IN (Pins 1to 3 and pins 5 to 7) to V+ or V-. The device structures is designed for fast triggering at a threshold of one +VBE diode threshold above V+ (Pin 8) or a VBE diode threshold below V- (Pin 4). 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.

● ESD interface capability for HBM standards

● High peak current capability

● Designed to provide over-voltage protection

● Fast Switching with 2ns rise time

● 1nA at 25° Low input leakages

● 3pF Low input capacitance

● -40 to 105°C Operating temperature range