ISP1106 Ver la hoja de datos (PDF) - Ericsson

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ISP1106

Advanced USB transceivers

Ericsson  

ISP1105/1106

Advanced USB transceivers

8. Electrostatic discharge (ESD)

8.1 ESD protection

The pins that are connected to the USB connector (D+, D−, VCC(5.0) and GND) have a

minimum of ±12 kV ESD protection. The ±12 kV measurement is limited by the test

equipment. Capacitors of 4.7 μF connected from Vreg(3.3) to GND and VCC(5.0) to GND are

required to achieve this ±12 kV ESD protection (see Figure 6).

RC

1 MΩ

charge current

limit resistor

RD

1500 Ω

discharge

resistance

HIGH VOLTAGE

DC SOURCE

CS

100 pF

storage

capacitor

DEVICE UNDER

TEST

A

VCC(5V0)

VREG3V3

B

4.7 μF

4.7 μF

Fig 6. Human Body ESD test model.

GND

004aaa145

8.2 ESD test conditions

A detailed report on test set-up and results is available on request.

ISP1105_1106_10

Product data sheet

Rev. 10 — 28 September 2009

© ST-ERICSSON 2009. All rights reserved.

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