- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361041 > LMS202ECM (NATIONAL SEMICONDUCTOR CORP) 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers PDF資料下載
參數(shù)資料
| 型號： | LMS202ECM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| 中文描述： | DUAL LINE TRANSCEIVER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 138K |
| 代理商： | LMS202ECM |
Typical Characteristics
Transmitter Output High Voltage vs. Load Capacitance
Transmitter Slew Rate vs. Load Capacitance
20048002
20048003
Application Information
CAPACITOR SELECTION
The recommended capacitors are 0.1μF. However, larger
capacitors for the charge pump may be used to minimized
ripples on V+ and V pins.
POWER SUPPLY DECOUPLING
In some applications that are sensitive to power supply noise
from the charge pump, place a decoupling capacitor, Cbp,
from V
to GND. Use at least a 0.1μF capacitor or the same
size as the charge pump capacitors (C1 C4).
CHARGED PUMP
The dual internal charged-pump provides the
±
10V to the to
transmitters. Using capacitor C1, the charge pump converts
+5V to +10V then stores the +10V in capacitor C3. The
charge pump uses capacitor C2 to invert the +10V to 10V.
The 10V is then stored in capacitor C4.
ELECTROSTATIC DISCHARGE PROTECTION
ESD protection has been placed at all pins to protect the
device from ESD. All pins except for the transmitter output
pins (pins 7 and 14) and receiver input pins (pins 8 and 13)
have a ESD rating of 2kV Human Body Model (HBM) and
200V Machine Model (MM). The RS-232 bus pins (pins 7, 8,
13 and 14) have a more robust ESD protection. The RS-232
bus pins have a ESD rating of 15kV HBM and IEC 1000-4-2,
air-gap. In addition the bus pins meet an ESD rating of 8kV
with IEC 1000-4-2, contact. The ESD structures can with-
stand a high ESD event under the following conditions:
powered-on, powered-off, and Input connected to high and
low with outputs unloaded.
HUMAN BODY MODEL
The Human Body Model is an ESD testing standard, defined
in Mil-STD-883C method 3015.7. It simulates a human dis-
charging an ESD charge to the IC device. The rise time is
approximately 10 ns and decay time is approximately 150
ns. The waveform is obtained by discharging 2kV volts ca-
pacitor through a resistor, R2 = 1.5 k
. The peak current is
approximately 1.33A.
20048004
FIGURE 1. HBM ESD Test Model
20048005
FIGURE 2. HBM Waveform
L
www.national.com
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMS202ECMW | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202ECMWX | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202ECMX | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202EIM | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202EIMW | 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMS202ECM | 制造商:Texas Instruments 功能描述:TRANSCEIVER RS232 SOIC16 5V 202 |
| LMS202ECM/NOPB | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| LMS202ECMW | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202ECMW | 制造商:Texas Instruments 功能描述:TRANSCEIVER RS232 SMD WSOIC16 5V |
| LMS202ECMW/NOPB | 制造商:Texas Instruments 功能描述:Dual Transmitter/Receiver RS-232 16-Pin SOIC W Rail |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。