IP4234CZ6 datasheet(3/9 Pages) NXP

3 / 9 page

IP4234CZ6_1

Product data sheet

Rev. 01 — 16 April 2009

3 of 9

NXP Semiconductors

IP4234CZ6

Single USB 2.0 ESD protection to IEC 61000-4-2 level 4

Characteristics

[1]

Guaranteed by design.

Application information

7.1 Universal serial bus 2.0 protection

The IP4234CZ6 is optimized to protect a USB 2.0 port from ESD. The device is capable of

protecting both USB data lines and the VBUS supply. A typical application is shown in

Figure 1.

To avoid a short circuit on the data lines when VBUS is shut down, a back drive protection

diode can be attached to the IP4234CZ6.

Table 5.

Characteristics

Tamb =25 °C unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max Unit

C(I/O-GND) input/output to ground

capacitance

pins 1, 3, 4, 6; VI = 0 V;

f = 1 MHz; VCC = 3.0 V

[1] -

2.5

C(zd-GND)

Zener diode to ground

capacitance

pin 5 to pin 2; VI = 0 V; f = 1 MHz;

VCC = 3.0 V

[1] -40

ILR

reverse leakage

current

pins 1, 3, 4, 6 to ground;

VI = 3.0 V

100

VBRzd

Zener diode

breakdown voltage

pin 5 to pin 2; I = 1 mA

forward voltage

[1] -

0.7

series resistance

Tcase =25 °C

[1] -

0.5

Ω

Fig 1.

Typical application of IP4234CZ6

654

123

001aaj951

VBUS

−

D+

GND

USB 2.0/

IEEE1394

TRANSCEIVER

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