IP4085_4385_4386_4387_CX4_1

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 01 — 26 March 2009

5 of 16

NXP Semiconductors

IP4085/4385/4386/4387/CX4

Integrated high-performance ESD-protection diodes

8.

Application information

8.1 Forward current DC clamping voltage

The forward current DC clamping voltage is of interest when protecting circuits from

voltage sources with the wrong polarity. Figure 3 shows the basic measurement setup.

diode capacitance

IP4085CX4

-

180

-

pF

IP4385CX4

-

450

-

pF

IP4386CX4

-

160

-

pF

IP4387CX4

-

290

-

pF

diode forward voltage

IP4085CX4

-

-

1.15

V

-

-

1.3

V

IP4385CX4

-

-

1.0

V

-

-

1.1

V

IP4386CX4

-

-

1.15

V

-

-

1.3

V

IP4387CX4

-

-

1.10

V

-

-

1.25

V

Table 5.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Fig 3.

Measuring DC clamping voltage with forward current

V

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