sp3222eey-tr Exar Corporation, sp3222eey-tr Datasheet - Page 14

• Manufacturer Part Number: sp3222eey-tr
• Description: Sp3232e -true +3.0v To +5.5v Rs-232 Transceivers
• Manufacturer: Exar Corporation

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.
Table 3. Transceiver ESD Tolerance Levels
Date: 08/22/05
Driver Outputs
Receiver Inputs
S
) are 1.5kΩ an 100pF, respectively. For
Device Pin
Tested
S
value and lower R
S
) and the source capacitor
SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers
Human Body
Model
±15kV
±15kV
S
) are 330Ω and
S
value in the
Air Discharge
S
)
14
±15kV
±15kV
Figure 19. ESD Test Waveform for IEC1000-4-2
15A
30A
0A
t=0ns
Direct Contact
IEC1000-4-2
±8kV
±8kV
t
© Copyright 2005 Sipex Corporation
t=30ns
Level
4
4