TFS160N-3.3 [MORNSUN]
Analog Circuit;
| 型号： | TFS160N-3.3 |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | Analog Circuit |
| 文件： | 总5页 (文件大小：889K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Signal conditioning modules
TFxxxxN Series
Active high precision output signal conditioning module
FEATURES
Two- port isolation (signal input and signal output)
High accuracy, High linearity (0.1% F.S.)
Isolation voltage (2KVAC/60s)
Low ripple & noise: (≤30mVpp, 20MHz)
Extremely low temperature coefficient
(≤50PPM/℃, within -40 to +85℃)
Compact size: DIP18 (26*9.5*12.5mm)
PART NUMBER SYSTEM
TFxxxxN
ESD protection (IEC/EN61000-4-2 Contact ±4KV
perf. Criteria B)
Package
Isolation power output
Power supply
Signal Output
Signal Input
Isolation Amplifier
The TFxxxxN series is with preceding voltage signal input and backward voltage/current signal output, and with an inner high efficiency
isolated micro-power source. It can provide isolation power to peripheral circuit at the same time of providing power to internal signal
processing circuit. Adopting electromagnetism isolation technology, therefore compared with photo-coupler isolation, it has higher
accuracy and lower temperature drift. This module is two-port isolation (input and output). There are external functions for the series as
zeros and full adjustment, convenient for customer to design and adjust.
Selection Guide
Power Supply input Typ.
(VDC)
Isolation Power
Output (VDC)
Model
Input Signal
Output Signal
TF5134N
TF5234N
TF5534N
TF5554N
TF5634N
TF6134N
TF6234N
TF6250N
TF6254N
TF6664N
TFS160N-3.3
24
24
24
12
24
24
24
12
12
5
0~10V
0~10V
0~10V
0~10V
0~10V
0~5V
4~20mA
0~20mA
0~10V
15
15
15
0~10V
15
0~5V
15
4~20mA
0~20mA
0~20mA
0~20mA
0~5V
15
0~5V
15
0~5V
None
15
0~5V
0~5V
15
5
0~3.3V
4~20mA
None
Input Specifications
Item
Operating Conditions
Min.
Typ.
Typ.
--
Max.
Unit
V
Input voltage
Typ.-5%
Typ.+5%
1.5
Isolation power output, Voltage output
Isolation power output, Current output
--
--
W
Power Input
signal Input*
Input power
--
2.0
W
Power supply protection
Input signal
Reverse polarity protection
See selection guide
Input impedance
Over range
in case of max. input of voltage signal
in case of input of voltage signal
10
--
--
--
--
M
Ω
30
V
Note: * When the input signal is open, if the output signal value need near 0, please connect a resistor(＜100KΩ ) in parallel at the signal input port (near one
end of the model).
Output Specifications
Item
Operating Conditions
Min.
Typ.-10%
--
Typ.
Typ.
--
Max.
Typ.+10%
25
Unit
V
Output voltage
Output current
Isolation power output at full load
Isolation Power Output
mA
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Signal conditioning modules
TFxxxxN Series
Output signal
See selection guide
Ω
Current output
Voltage output
20MHz Bandwidth
--
2
--
--
--
500
--
signal Output
Load capacity
Ripple & noise
KΩ
--
30
mVpp
Transmission Specifications
Item
Operating Conditions
Min.
-0.1%F.S.
-0.1%F.S.
--
Typ.
--
Max.
+0.1%F.S.
+0.1%F.S.
50
Unit
Ta=25℃
Zero Offset
--
--
℃
Signal Precision
Temperature Coefficient
Ta=25
--
Operating temperature range of -40 to +85℃
Full Degree Regulation
PPM/℃
--
--
-5%F.S.
-5%F.S.
2
--
+5%F.S.
+5%F.S.
--
Adjustable Function
Zero Regulation
--
--
Bandwidth
--
KHz
ms
Response Time
--
--
1
General Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Isolated between the signal input and the signal
output.
Electric Isolation
testing for
humidity <70%
1 minute, leakage current <1mA,
Isolation voltage
2
--
--
KVAC
Isolation Resistance
500VDC
100
-40
--
--
--
MΩ
℃
Operating Temperature
+85
Transportation and Storage
Temperature
℃
-50
--
+105
The presence of dust, fierce vibration, impulsion
and corrosive gas may cause damage to the
product
Application Environment
Physical Specifications
Casing Material
Black flame-retardant heat-proof plastic
Package
DIP18
Weight
5.7g(Typ.)
Cooling Method
Free air convection
EMC Specifications
EMI
CE
CISPR22/EN55022
IEC/EN61000-4-2
CLASS A (see Fig. 4 for recommended circuit)
ESD
Contact ±4KV
perf. Criteria B
perf. Criteria B
Isolation Power Output port &Single Output port
±2KV (see Fig. 4 for recommended circuit)
EFT
IEC/EN61000-4-4
IEC/EN61000-4-5
EMS
Isolation Power Output port &Single Output port (line-to-ground)
±1KV(see Fig. 4 for recommended circuit)
Surge
perf. Criteria B
Application Precautions
1. Please read the instructions carefully before use; contact our technical support if you have any problem;
2. Do not use the product in hazardous areas;
3. Use DC power supply for the product and 220V AC power supply is prohibited;
4. Do not dismount and assemble the product without permission to avoid failure or malfunction of equipment;
5. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity<75% with power
input nominal voltage and rated signal output full load.
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Signal conditioning modules
TFxxxxN Series
After-sales service
1. Ex-factory inspection and quality control have been strictly conducted for the product; if there occurs abnormal operation or possibility
of failure of internal module, please contact the local representative or our technical support.
2. The warranty period for the product is 3 years as calculated from the date of delivery. If any quality problem occurs under normal use
within the warranty period, the product can be repaired or changed for free.
Applied circuit
See Application Notes for Isolated Transmitter for details.
Design Reference
1. Typical application
1) Schematic diagram
Power In
ISO Power
ISO Power Out
Signal Out
Power In
OSC
AMP
MOD
DEMOD
AMP
Signal In
Offset Trim
Gain Trim
Fig. 1
2) Typical application——Isolation application of AO board card in DCS system
Application circuit for typical multi-channel signal acquisition is as below:
TF_N output module
isolation bus interface
Sout1
DAC
DAC
DAC
DAC
485
isolation transceiver
Sout2
Sout3
CAN isolation transceiver
I/O Bus
MCU
Sin
Ethernet network transformer
Sout4
Fig. 2 Isolation application figure of AO board card in DCS system
Function
In the figure 2, Sin are input signals for peripheral circuit. The input signals can be sent to MCU and isolated with Sin by 485 isolation
transceiver, CAN isolation transceiver and Etherent network transformer, MCU control system receive the signals, and output digital signals
after signal processing. DAC is digital to analog converter, digital signals can be transferred to analog signals by DAC . TF_N output module
isolation output the analog signals transferred from DAC. Sout1, Sout2, Sout3 and Sout4 are multiplex output isolation signals.
Working principle
When the circuit works, peripheral circuit provides input signals Sin, and it transfers input signals to MCU control system by isolated bus
interface. The MCU receives the signals and manage them, then output digital signals)The digital signals are transferred by I/O bus. Digital
signals are converted to analog signals through DAC. After these analog signals get through TF_N output module, we can get isolation
signals. The whole working process realizes that the inner signals of control system are isolated with the peripheral circuit ) and the output
signals,Sout1,Sout2,Sout3 and Sout4 are isolated and not interfere with each other)
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Signal conditioning modules
TFxxxxN Series
3) Application——Zero and full adjustment function
Zero and full adjustment recommended setting circuit is as shown
10+
+
18+
D2
Power input
C1
D1
Isolation power output
11-
17-
16
-
Zero adjustment
potentiometer
+
15
1+
9+
D4
D3
Singal input
Singal output
8-
7
2-
-
Full adjustment
potentiometer
+
6
Fig. 3 Zero and full adjustment circuit
Function
Zero adjustment function by setting up adjustment resistor at the zero point can change the zero signal transmission, which makes the
output signal overall migration. Full adjustment function is also called the gain adjustment function, and it can change the ratio of signal
transmission through the set up corresponding adjust resistance at the full adjustment, and the isolation transmission proportion of input and
output signal value would be changed.
Usage
Adding and reducing negative zero resistance can reduce the zero of signal output. Adding and reducing positive zero resistance can
increase the zero of signal output. Adding and reducing negative full adjustable resistance can reduce the ratio of signal transmission,
Adding and reducing negative full adjustable resistance can increase the ratio of signal transmission. You can use potentiometer to adjust
the output signal of zero and full in practical application. As shown in the figure 3, the terminal of full or zero adjustment is connected to the
sliding of potentiometer, and the both ends of potentiometer is to the zero or full reference of positive and negative regulating reference .
Sliding potentiometer to adjust signal full or changing the ratio of rise and fall can also adjust zero and full of the output signal.
As shown in the figure 3, Adjusting the potentiometer to positive can increase zero or full of the corresponding signal. Adjusting the
potentiometer to negative can reduce zero or full of the corresponding signal. The maximum recommended range of potentiometer is
10KΩ~1MΩ, detail resistance selection according to the adjustment accuracy. Choose larger resistance potentiometer for high precision
fine-tuning. Choose smaller resistance potentiometer for a wide range of rough adjustment.
Notice
Using the function of zero and full adjustment will affect original accuracy. Due to the effect on temperature drift of external
adjustment resistor and the stability of the potentiometer, temperature drift of product will be changed, too. For the zero and full adjustment
potentiometer, the ratio between positive resistance and negative resistance, which makes the zero point of different products
predetermined Zero point is diverse. Please set the value of potentiometer according to actual situation.
2. Recommended EMC circuit
10+
D1
18+
D2
+
Power supply
Signal input
C1
Isolation power output
11-
17-
16
R1
R2
15
1+
9+
D4
D3
Signal output
8-
7
2-
R3
R4
6
Fig. 4
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Signal conditioning modules
TFxxxxN Series
Components
Recommended parameters
220uF/35V
C1
R1
R2
R3
R4
D1
D2
D3
D4
Negative zero adjustment resistance
Positive zero adjustment resistance
Negative gain adjustment resistance
Positive gain adjustment resistance
SMCJ28A
SMBJ18A
SMBJ15A
SMBJ15A
2. For more information please find the application notes on www.mornsun-power.com
Dimensions and Recommended Layout
Notes:
1. Packing Information please refer to 'Product Packing Information'. Packing bag number: 58240002;
2. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25℃, humidity<75% when inputting
nominal voltage and outputting rated load;
3. All index testing methods in this datasheet are based on our Company’s corporate standards;
4. The performance indexes of the product models listed in this datasheet are as above, but some indexes of non-standard model
products will exceed the above-mentioned requirements, and please directly contact our technician for specific information;
5. We can provide product customization service;
6. Specifications of this product are subject to changes without prior notice.
Mornsun Guangzhou Science & Technology Co., Ltd.
Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China
Tel: 86-20-38601850-8801
Fax: 86-20-38601272
E-mail: info@mornsun.cn
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