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參數(shù)資料
| 型號： | HCPL4100 |
| 英文描述： | Optically Coupled 20 mA Current Loop Transmitter |
| 中文描述： | 光耦合20毫安電流回路變送器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 230K |
| 代理商： | HCPL4100 |
10
Figure 12. Recommended Non-Isolated Active Receiver with HCPL-4100 Isolated Transmitter for Simplex Point to Point
20 mA Current Loop.
25% distortion data rate at
different V
CC
values. 25%
distortion data rate is defined as
that rate at which 25% distortion
occurs to output bit interval with
respect to the input bit interval.
Maximum data rate (dotted line)
is restricted by device character-
istics. An input Non-Return-to-
Zero (NRZ) test waveform of 16
bits (0000001011111101) was
used for data rate distortion
measurements. Enhanced speed
performance of the loop system
can be obtained with lower V
CC
supply levels, as illustrated in
Figure 14. In addition, when loop
current is supplied through a
resistor instead of by a current
source, an additional series
termination resistance equal to
the characteristic line impedance
can be used at the HCPL-4100
transmitter end to enhance speed
of response by approximately
20%.
The cable used contained five
pairs of unshielded, twisted, 22
AWG wire (Dearborn #862205).
Loop current is 20 mA nominal.
Input and output logic supply
voltages are 5 V dc.
Full Duplex
The full duplex point-to-point
communication of Figure 15 uses
a four wire system to provide
simultaneous, bidirectional data
communication between local
and remote equipment. The basic
application uses two simplex
point-to-point loops which have
two separate, active, non-isolated
units at one common end of the
loops. The other end of each loop
is isolated.
Figure 13. Minimum Required Supply
Voltage, V
, vs. Loop Length for
Current Loop Circuit of Figure 13.
Figure 14. Typical Data Rate vs.
Distance and Supply Voltage.
V
C
–
0
12
0
L – LOOP LENGTH (ONE DIRECTION) METERS
100
1000
16
4
28
32
36
40
10000
V
CC
= 0.00212 m
R
CABLE
= 0.05296
/m
I
LOOP
= 20 mA
V
MARK
= 2.7 Vdc (HCPL-4100)
V
SAT
= 1.5 Vdc (CURRENT SOURCE)
T
A
V
24
20
8
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PDF描述 |
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| HCPL-4100 | Optically Coupled 20 mA Optically Coupled 20 mA |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCPL-4100 | 功能描述:邏輯輸出光電耦合器 20mA Current Loop RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-4100#300 | 功能描述:邏輯輸出光電耦合器 20mA Current Loop RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-4100#500 | 功能描述:邏輯輸出光電耦合器 20mA Current Loop RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-4100-000E | 功能描述:邏輯輸出光電耦合器 20mA Current Loop RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-4100-000E | 制造商:Avago Technologies 功能描述:CURRENT LOOP OPTOCOUPLER(20MA) LF - LE |
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