ISP1107(2002) Просмотр технического описания (PDF) - Philips Electronics

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Компоненты Описание

производитель

ISP1107
(Rev.:2002)

Advanced Universal Serial Bus transceivers

Philips Electronics 

Philips Semiconductors

ISP1105/1106/1107

Advanced USB transceivers

Table 10: Power supply input options

Input option

Internal

regulator

VCC(5.0)

supply input for internal

regulator

(4.0 to 5.5 V)

Vreg(3.3)

voltage reference

output

(3.3 V, 300 µA)

Regulator

bypass

connected to Vreg(3.3)

with maximum voltage

drop of 0.3 V

(2.7 to 3.6 V)

supply input

(3.0 V to 3.6 V)

8. Electrostatic discharge (ESD)

VCC(I/O)

supply input for digital

I/O pins

(1.65 V to 3.6 V)

supply input for digital

I/O pins

(1.65 V to 3.6 V)

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 5).

ISP1105/1106/1107 can withstand ±12 kV using the Human Body Model and ±5 kV

using the Contact Discharge Method as specified in IEC 61000-4-2.

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(5.0)

Vreg(3.3)

B

4.7 µF

4.7 µF

Fig 5. Human Body ESD test model.

GND

004aaa145

8.2 ESD test conditions

For a detailed report on test setup and results, please forward a request to

wired.support@philips.com.

9397 750 09529

Product data

Rev. 07 — 29 March 2002

© Koninklijke Philips Electronics N.V. 2002. All rights reserved.

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