Datasheet

IP4085_4385_4386_4387_CX4 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 2 — 14 December 2012 7 of 18
NXP Semiconductors
IP4085/4385/4386/4387/CX4
Integrated high-performance ESD protection diodes
7.2 Peak clamping voltage
The peak clamping voltage for forward and reverse current pulses of 8/20 s
(IEC 61000-4-5) is an indicator of protection level of circuits from power surges due to
voltage discharges. The current pulse shape over time is shown in Figure 7
. The basic
measurement setup for forward current and reverse current pulses respectively are
shown in Figure 6
and Figure 12.
Fig 6. Measuring peak clamping voltage with forward current
Fig 7. 8/20 s current pulse waveform according to IEC 61000-4-5
V
006aad227
I
PP
V
CL
t (μs)
0403010 20
001aaj558
40
80
120
I
PP
(%)
0
100 % I
PP
; 8 μs
e
−t
50 % I
PP
; 20 μs