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參數資料
| 型號： | SP3238EEEY |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發(fā)器與0.1uF電容 |
| 文件頁數： | 17/20頁 |
| 文件大小： | 248K |
| 代理商： | SP3238EEEY |
17
Date: 02/24/05
SP3238EE Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2005 Sipex Corporation
The circuit model in Figures 19
and 20 represent
the typical ESD testing circuit used for all three
methods. The C
S
is initially charged with the DC
power supply when the first switch (SW1) is on.
Now that the capacitor is charged, the second
switch (SW2) is on while SW1 switches off. The
voltage stored in the capacitor is then applied
through R
S
, the current limiting resistor, onto the
device under test (DUT). In ESD tests, the SW2
switch is pulsed so that the device under test
receives a duration of voltage.
For the Human Body Model, the current limiting
resistor (R
) and the source capacitor (C
) are
1.5k
an 100pF, respectively. For IEC-1000-4-
2, the current limiting resistor (R
) and the source
capacitor (C
S
) are 330
an 150pF, respectively.
The higher C
value and lower R
value in the
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.
Figure 21. ESD Test Waveform for IEC1000-4-2
t=0ns
t=30ns
0A
15A
30A
t
i
Figure 20. ESD Test Circuit for IEC1000-4-2
Table 3. Transceiver ESD Tolerance Levels
R
R
S
R
S
R
V
and
R
R
V
add up to 330
for IEC1000-4-2.
Contact-Discharge Module
R
R
V
V
R
V
R
R
C
C
C
C
C
S
S
S
R
R
S
S
R
S
SW1
SW2
Device
Under
Test
DC Power
Source
DEVICE PIN
TESTED
HUMAN BODY
MODEL Air Discharge Direct Contact Level
IEC1000-4-2
Driver Outputs
Receiver Inputs
Logic Inputs
Logic Outputs
±
15kV
±
15kV
±
15kV
±
15kV
±
15kV
±
15kV
±
15kV
±
15kV
±
8kV
±
8kV
±
8kV
±
8kV
4
4
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|---|---|
| SP3238EECA | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP3238EECA-L | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP3238EECY | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP3238EECY-L | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP3238E | Intelligent +3.0V to +5.5V RS-232 Transceivers(智能+3.0V 至 +5.5V RS-232收發(fā)器（5發(fā)3收）) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SP3238EEEY/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceiver |
| SP3238EEEY-L | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceiver |
| SP3238EEEY-L/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceiver |
| SP3238EEY | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP3238EEY-L | 功能描述:RS-232接口集成電路 RS232 250 kbps temp -40C to 85C RoHS:否 制造商:Exar 數據速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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