sp3222ebey-tr Exar Corporation, sp3222ebey-tr Datasheet - Page 14

• Manufacturer Part Number: sp3222ebey-tr
• Description: Sp3232eb -true +3.0v To +5.5v Rs-232 Transceivers
• Manufacturer: Exar Corporation

Date:11/02/05
For the Human Body Model, the current
limiting resistor (R
(C
IEC-1000-4-2, the current limiting resistor (R
and the source capacitor (C
150pF, respectively.
The higher C
IEC1000-4-2 model are more stringent than the
Human Body Model. The larger storage capacitor
injects a higher voltage to the test point when SW2
is switched on. The lower current limiting resistor
increases the current charge onto the test point.
Date:02/27/05
Table 3. Transceiver ESD Tolerance Levels
Driver Outputs
Receiver Inputs
S
Device Pin
) are 1.5k
Tested
S
value and lower R
an 100pF, respectively. For
S
SP3222EB/SP3232EB True +3.0V to +5.5V RS-232 Transceivers
) and the source capacitor
SP3222EB/3232EB True +3.0 to +5.5V RS-232 Transceivers
Human Body
Model
±15kV
±15kV
S
) are 330
S
value in the
Air Discharge
an
S
)
±15kV
±15kV
14
1
Figure 20. ESD Test Waveform for IEC1000-4-2
15A
30A
0A
t=0ns
Direct Contact
IEC1000-4-2
±8kV
±8kV
t ➙
© Copyright 2005 Sipex Corporation
© Copyright 2005 Sipex Corporation
t=30ns
Level
4
4