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TVS Diode Arrays

Electronic Protection Array for ESD and Overvoltage Protection

FIGURE 2. LOW CURRENT SCR FORWARD VOLTAGE DROP

CURVE

FIGURE 3. HIGH CURRENT SCR FORWARDVOLTAGE DROP

CURVE

600

800

1000

1200

FORWARD SCR VOLTAGE DROP (mV)

100

80

60

40

20

0

SINGLE PULSE

2.5

2

1.5

1

0.5

0

SINGLE PULSE

01

2

3

FORWARD SCR VOLTAGE DROP (V)

EQUIV. SAT. ON

THRESHOLD ~ 1.1V

INPUT

DRIVERS

SP721 INPUT PROTECTION CIRCUIT (1 OF 6 SHOWN)

OR

SIGNAL

SOURCES

IN 5 - 7

IN 1 - 3

SP721

V-

LINEAR OR

DIGITAL IC

INTERFACE

V+

SP721