ISP1105 View Datasheet(PDF) - Ericsson
Part Name
Description
MFG CO.
'ISP1105' PDF : 25 Pages View PDF
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.
10 of 25
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