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参数资料
| 型号： | LMS202CMX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | Buffer和线驱动 |
| 英文描述： | 5V Single Supply TIA/EIA-232 Dual Transceivers |
| 中文描述： | DUAL LINE TRANSCEIVER, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 4/6页 |
| 文件大小： | 104K |
| 代理商： | LMS202CMX |
Electrical Characteristics (Continued)
Over recommended operating supply and temperature ranges unless otherwise specified C1 = C2 = C3 = C4 = Cbp = 0.1F
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
SLEW
Transition Region Slew Rate T
A = 25C, VS =5V
C
L = 50pF to 1000pF, RL =3k
to 7k
Measured from +3V to 3V or vice versa
3
6
30
V/s
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Human Body Model, 1.5k
in series with 100pF
Note 3: The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD =
(TJ(MAX) TA)/ θJA. All numbers apply for packages soldered directly onto a PC board.
Note 4: Typical Values represent the most likely parametric norm.
Note 5: All limits are guaranteed by testing or statistical analysis
Note 6: Machine model, 0
in series with 200pF
Typical Characteristics
Transmitter Output High Voltage vs. Load Capacitance
Transmitter Slew Rate vs. Load Capacitance
20062902
20062903
Application Information
CAPACITOR SELECTION
The recommended capacitors are 0.1F. 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
S to GND. Use at least a 0.1F 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.
LMS202
www.national.com
4
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相关代理商/技术参数 |
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|---|---|
| LMS202E | 制造商:NSC 制造商全称:National Semiconductor 功能描述:15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
| LMS202ECM | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| LMS202ECM | 制造商:Texas Instruments 功能描述:TRANSCEIVER RS232 SOIC16 5V 202 |
| LMS202ECM/NOPB | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| LMS202ECMW | 制造商:NSC 制造商全称:National Semiconductor 功能描述:15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers |
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