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SP725 Series - 5pF, 8kV, SCR & Diode Rail Clamp Array

DataSheet:TVS Diode Array SPA SP725 Datasheet

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. Overvoltage 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_BE diode threshold above V+ (Pin 5,6) or one -V_BE diode threshold below V- (Pin 7,8). 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 V_BE above V+. A similar clamp to V- is activated if a negative pulse, one V_BE less than V-, is applied to an IN input.

Refer to Application Note AN9304 and AN9612 for further detail.

Features:

ESD Interface 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..................................................25kV

Peak Current Capability

• IEC 61000-4-5 8/20 µs Peak Pulse Current...... ± 9 A
• Single Transient Pulse, 100 µs Pulse Width....... ± 4 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 ºC Typical
• Low Input Capacitance....................................5 pF Typical
• An Array of 4 SCR/Diode Pairs
• Operating Temperature Range..................-40ºC to 105ºC

Ordering Information