isolated transmitte r tfxxxxn series 201 4 .03.18- a /2 page 1of 4 mornsun guangzhou science & te chnology co., ltd. reserves the copyright and right of final interpretation active high precision isolated transmitter features z two-terminal isolation (s ignal input and signal output) z high precision grade (0.1% f.s.) z high linearity (0.1% f.s.) z isolation voltage (2kvac/60s) z low ripple & noise: ( 30mvpp , 20mhz) z extremely low temperature drift ( 50ppm/ , within -40 to +85 ) z small size: dip18 (26*9.5*12.5mm) z esd protection (iec/en61000-4-2 contact 4kv perf. criteria b) z with load ability: 500 (max. ? signal output @20ma) 2k (max. ? signal output @10v) t he tfxxxxn series is with p receding voltage signal input and back ward voltage/current signal output, and with an inner high efficiency isolated micro-power source. it can provide isolation power to pe ripheral circuit at the same ti me of providing power to intern al signal processing circuit. adopting electromagnetism isolation technolo gy, therefore compared with photo-coupler isolation, it has hig her accuracy and lower temperature drift. this module is two-port isolation (input and output). th ere are external functions for th e series as zeros and full adjustment, convenient for customer to design and adjust. selection guide model power supply input (vdc) input signal output signal isolation power output (vdc) tf5134n 24v 0~10v 4~20ma 15v TF5534N 24v 0~10v 0~10v 15v tf6254n 12v 0~5v 0~20ma 15v tf5554n 12v 0~10v 0~10v 15v tf5634n 24v 0~10v 0~5v 15v tf6134n 24v 0~5v 4~20ma 15v tf6234n 24v 0~5v 0~20ma 15v tf6664n 5v 0~5v 0~5v 15v tfs160n-3.3 5v 0~3.3v 4~20ma none input specifications item operating conditions value input power supply input voltage (nominal value of power supply input) 5% input power 1.5w ( isolation power output, voltage output) 2.0w (no isolation power output, current output) power supply protection reverse polarity protection input input signal see selection guide input impedance in case of max. input of voltage signal 10m ? overload in case of input of voltage signal 30 out p ut s p ecifications item operating conditions value output of isolated power supply output voltage power, current fu ll load (nominal value) 10% output current 25ma output output signal see selection guide load capacity max. signal output @20ma 500 ? max. signal output @10v 2k ? ripple & noise 20mhz bandwidth 30mvpp
isolated transmitte r tfxxxxn series 201 4 .03.18- a /2 page 2of 4 mornsun guangzhou science & te chnology co., ltd. reserves the copyright and right of final interpretation t ransmission specifications item operating conditions value zero offset 0.1%f.s. precision 0.1%f.s. temperature drift operating temperature range of -40 to +85 50ppm/ ? adjustable function full degree regulation can be adjusted within 5% output signal range zero regulation can be adjusted within 5% output signal range bandwidth 2khz response time 1ms general specifications item operating conditions value electric isolation power input and the signal output are on the common ground. power output and the signal input are on the common ground. isolated between power input and the signal output or power input and power distribution output. degree of isolation testing for 1 minute, leakage current <1ma, humidity <70% 2kvac insulation resistance 100m , 500vdc operating temperature -40~+85 transportation and storage temperature -50~+105 application environment the presence of dust, fierce vibrat ion, impulsion and corrosive gas may cause damage to the product physical specifications casing material wh8100-f [1] package dip18 weight 8g( typ.) cooling method natural cooling emc specifications emi conducted disturbance cispr22/en55022 clas s a (see fig. 4 for recommended circuit) ems electrostatic discharge iec/en61000-4-2 contact 4kv perf. criteria b eft iec/en61000-4-4 power supply port 2kv (see fig. 4 for recommended circuit) perf. criteria b surge immunity iec/en61000-4-5 power supply 1kv (see fig. 4 for recommended circuit) perf. criteria b a pplication precautions 1. please read the instructions care fully before use; contact our technica l support if you have any problem. 2. do not use the produc t 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 perm ission to avoid failure or malfunction of equipment. a fter-sales service 1. ex-factory inspection and quality contro l have been strictly conducted for the prod uct; if there occurs abnormal operation o r 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 ca n be repaired or changed for free. applied circuit see application notes for isolated transmitter for details.
isolated transmitte r tfxxxxn series 201 4 .03.18- a /2 page 3of 4 mornsun guangzhou science & te chnology co., ltd. reserves the copyright and right of final interpretation design reference 1. typical application 1) schematic diagram signal in power in power in iso power demod iso power out signal out amp offset trim gain trim amp mod osc fig. 1 2) typical application??isolation applicat ion of ao board card in dcs system application circuit for typical multi- channel signal acquisition is as below: dac dac dac dac mcu can isolation transceiver 485 isolation transceiver ethernet network transformer isolation bus interface tf n _ output module i/o bus sin sout1 sout2 sout3 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 48 5 isolation transceiver, can isolation transceiver and etherent network transf ormer, mcu control system receiv e the signals, and output dig ital signals after signal processing. dac is digital to analog converter, digital signals can be tr ansferred 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, peripher al circuit provides input signal s sin, and it transfers input si gnals to mcu control system by isolated bus interface. the mcu receives the signals and manage them, then ou tput 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 isol ation signals. the whole working process realizes that the inner signals of control system ar e isolated with the peripheral circuit ) and the output signals,sout1,sout2,sout3 and sout4 are isol ated and not interfere with each other) 3) application??zero and full adjustment function zero and full adjustment recomme nded setting circuit is as shown singal output c1 10+ d1 11- 18+ d2 17- c2 1+ 2- d3 16 15 isolation power output d4 9+ 8- 7 6 singal input power input - + - + zero adjustment potentiometer full adjustment potentiometer 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 mak es the output signal overall migration. full adjust ment function is also called the gain adjustment function, and it can change the ra tio of signal transmission through the set up corresponding adjust resistance at the full adju stment, and the isolation transmission proporti on of input and output signal value would be changed. usage adding and reducing negative zero resistance can reduce the zero of signal output. ad ding 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 tran smission, adding and reducing negative full adjustable resistance can increase the ratio of si gnal transmission. you can use potentiomete r to adjust the output signal of zero and full in practi cal application. as shown in the figure 3, the terminal of full or zero adjustment is connected to the
isolated transmitte r tfxxxxn series 201 4 .03.18- a /2 page 4 of 4 mornsun guangzhou science & te chnology co., ltd. reserves the copyright and right of final interpretation sliding of potentiometer, and the both ends of potentiometer is to the zero or full reference of positive and negative regulati ng 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 po tentiometer to positive can increase zero or full of the corresponding signal. adjust ing the potentiometer to negative can reduce zero or full of the corresp onding signal. the maximum recomm ended range of potentiometer i s 10k ~1m , detail resistance selection according to the adjustment accuracy. c ? hoose larger resistance pote ntiometer for high precision fine-tuning. choose smaller resistance potentio meter for a wide range of rough adjustment. notice using the function of zero and full adjustment will affect origin al accuracy. due to the effect on temperature drift of externa l adjustment resistor and the stability of the potentiometer, temper ature drift of product will be ch anged, 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 va lue of potentiometer accord ing to actual situation. 2. recommended emc circuit signal output c1 10+ d1 11- 18+ d2 17- c2 1+ 2- d3 r1 r2 16 15 isolation power output d4 r3 r4 9+ 8- 7 6 signal input power supply fig. 4 c1 100uf/35v c2 100uf/35v r1 negative zero adjustment resistance r2 positive zero adjustment resistance r3 positive gain adjustment resistance r4 negative gain adjustment resistance r5 positive zero adjustment resistance d1 smcj30a d2 smcj28a d3 smbj15a d4 smbj15a 3. 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 da tasheet 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 subj ect to changes without prior notice. mornsun guangzhou science & technology co., ltd. address: no. 5, kehui st. 1, kehui develo pment center, science ave., guangzhou scienc e 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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