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參數(shù)資料
| 型號(hào)： | SP385E |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 電可擦除可編程邏輯器件 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 137K |
| 代理商： | SP385E |
Rev. 10/22/01 SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver Copyright 2001 Sipex Corporation
7
Shutdown (ON/OFF)
The
SP385E
has a shut-down/standby mode to
conserve power in battery-powered systems. To
activate the shutdown mode, which stops the
operation of the charge pump, a logic "0" is
applied to the appropriate control line. The
shutdown mode is controlled on the
SP385E
by
a logic "0" on the ON/OFF control line (pin 18
for the SOIC and pin 20 for the SSOP packages);
this puts the transmitter outputs in a tri-state mode.
ESD Tolerance
The
SP385E
device 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
improved ESD tolerance is at least
±
15KV with-
out damage nor latch-up.
There are different methods of ESD testing
applied:
a) MIL-STD-883, Method 3015.7
b) IEC1000-4-2 Air-Discharge
c) IEC1000-4-2 Direct Contact
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
this ESD test is to simulate the human body’s
potential to store electro-static energy and
discharge it to an integrated circuit. The
simulation is performed by using a test model as
shown in
Figure 6
. 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.
The IEC-1000-4-2, formerly IEC801-2, is
generally used for testing ESD on equipment and
systems. For system manufacturers, they must
guarantee a certain amount of ESD protection
since the system itself is exposed to the outside
environment and human presence. The premise
with IEC1000-4-2 is that the system is required
to withstand an amount of static electricity when
ESD is applied to points and surfaces of the
equipment that are accessible to personnel during
normal usage. The transceiver IC receives most
of the ESD current when the ESD source is
applied to the connector pins. The test circuit for
IEC1000-4-2 is shown on
Figure 7
. There are
two methods within IEC1000-4-2, the Air
Discharge method and the Contact Discharge
method.
Figure 4. Charge Pump — Phase 3
V
CC
= +5V
–5V
+5V
–5V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
–
–
–
–
Figure 5. Charge Pump — Phase 4
V
CC
= +5V
+10V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
–
–
–
–
Figure 6. ESD Test Circuit for Human Body Model
R
R
C
C
C
C
S
S
R
R
S
S
SW1
SW2
R
C
Device
DC Power
C
S
R
S
Figure 7. ESD Test Circuit for IEC1000-4-2
R
f
RS and RV add up to 330
for IEC1000-4-2.
Contact-Discharge Module
R
R
V
V
R
R
C
C
C
C
S
S
R
R
S
S
SW1
SW2
R
C
Device
DC Power
C
S
R
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP385ECA | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP385ECT | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP385EET | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP385EEA | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP4010B | Analog Buffer/Voltage Follower |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP385E_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced +3V or +5V RS-232 Line Driver/Receiver |
| SP385E-1 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3V or +5V RS-232 Line Driver/Receiver |
| SP385E-1CA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3V or +5V RS-232 Line Driver/Receiver |
| SP385E-1CT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3V or +5V RS-232 Line Driver/Receiver |
| SP385E-1EA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3V or +5V RS-232 Line Driver/Receiver |
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