SP3243 SIPEX [Sipex Corporation], SP3243 Datasheet - Page 18

• Manufacturer Part Number: SP3243
• Description: Intelligent +3.0V to +5.5V RS-232 Transceivers
• Manufacturer: SIPEX [Sipex Corporation]

ESD TOLERANCE
The SP3223/3243 series incorporates
ruggedized ESD cells on all driver output and
receiver input pins. The ESD structure is
improved over our previous family for more
rugged applications and environments sensitive
to electro-static discharges and associated
transients.
The Human Body Model has been the generally
accepted ESD testing method for semiconductors.
This method is also specified in MIL-STD-883,
Method 3015.7 for ESD testing. The premise of
Figure 25. ESD Test Circuit for Human Body Model
Rev. 6/30/03
DC Power
Source
R
R
C
C
SW1
SW1
SP3223 +3.0V to +5.5V RS-232 Transceivers
18
C
C
S
this ESD test is to simulate the human body’s
potential to store electro-static energy and
discharge it to an integrated circuit.
simulation is performed by using a test model as
shown in Figure 25. This method will test the
IC’s capability to withstand an ESD transient
during normal handling such as in manufacturing
areas where the ICs tend to be handled frequently.
For the Human Body Model, the current limiting
resistor (R
1.5kΩ and 100pF, respectively.
S
R
R
S
S
S
) and the source capacitor (C
SW2
SW2
© Copyright 2003 Sipex Corporation
Device
Under
Test
S
) are
The