i ndustrial bus t dx01d485 series 201 5 . 09.16 - a/3 page 1 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation single rs485 isolation transceiver module features ? two-terminal isolation ( input and output are mutually isolated) ? integrated isolated dc/dc converter ? bus protection ? isolation voltage :2.5kvdc ? operating temperature range:-40 ~+ 8 5 ? baud rate 9600bps ? connect up to 32 nodes on one bus td301d485/TD501D485 series are transceiver isolation module with integrated duplex power isolation, electrical isolation, and rs485 interface bus protector ; products can be easily embedded in the user equipment, achieve function of rs485 network connection. the isolation rs485 circuits of using a piece of power isolation module, three light couplings and rs485 transceivers and device are only need to adopt a rs485 isolation module now. simplify the customers on the isolation requirements of the design. selection guide part no. power supply input (vdc) td301d485 3.17~3.45 TD501D485 4.75~5.25 input specifications item operating conditions value input power supply static current products energized , n o communication TD501D485 30 ma,td301d485 40ma send current 9600bps square wave communication TD501D485 40 ma,td301d485 60ma input serial interface td301d485 compatible with + 3.3 v uart interface TD501D485 compatible with + 5 v uart interface pin current i txd 5ma; i rxd 3 ma; i con 5ma bus interface item operating conditions value output rs 485 bus interface standard interface rs485 ,pull-up and pull-down resistor, whose value is 4.7k,have been set to a/b line. transmission specifications item operating conditions value data rate 9600bps (max.) transceiver switching delay the delay time from the receiving data switch to the send data : 30 s(min.), 100 s(max.). the number of nodes connect up to 32 nodes on one bus transceiver c ontrol contrary to common rs 485 transceiver control level truth table sending status control input output con txd a b line state 0 1 1 0 normal 0 0 0 1 normal receiving status control input output con a-b rxd 1 0.2v 1 1 -0.2v 0
i ndustrial bus t dx01d485 series 201 5 . 09.16 - a/3 page 2 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation general specifications item operating conditions value electric isolation two-terminal isolation (input and output are mutually isolated) degree of isolation testing for 1 minute, leakage current <5ma, humidity <95% 2.5kvdc operating temperature -40 ~+85 transportation and storage temperature -50 ~+105 operating humidity 10% ~ 90% temperature rising ta=25 25 (typ.) application environment the presence of dust, fierce vibration, impulsion and corrosive gas may cause damage to the product physical specifications casing material black flame-retardant heat-proof plastic (ul94-v0) package dip10 weight about 10g cooling method free air convection emc specifications emi conducted disturbance cispr22/en55022 class a (see 2 - for recommended circuit) radiated emission cispr22/en55022 class a (see 2 - 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 2 - for recommended circuit) perf. criteria b iec/en61000-4-4 signal port 1kv (see 2- for recommended circuit) perf. criteria b surge immunity iec/en61000-4-5 power supply port 1kv (see 2- for recommended circuit) perf. criteria b signal port 0.25kv/ 0.5kv (see 2- for recommended circuit) perf. criteria b signal port 0.5kv/ 1kv (see 2- for recommended circuit) perf. criteria b signal port 1kv/ 2kv (see 2- for recommended circuit) perf. criteria b signal port 2kv/ 4kv (see 2- for recommended circuit) perf. criteria b signal port 4kv/ 6kv (see 2 - for recommended circuit) perf. criteria b application precautions 1. please read the technical manual carefully before use; contact our technical support if you have any problem. 2. do not use the product in hazardous areas. 3. u se 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. a fter-sales service 1. e x-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. t he warranty period for the product is 3 years as calculated from the date of delivery. i f any quality problem occurs under normal use within the warranty period, the product can be repaired or changed for free. a pplied circuit see application notes for isolated transmitter for details.
i ndustrial bus t dx01d485 series 201 5 . 09.16 - a/3 page 3 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation design reference 1. typical application 0.1uf dc/dc vcc txd con rxd mcu di de re ro rs485een gnd a b vcc +5v 6n137 6n137 6n137 +5v conventional circuit rxd txd gnd vcc a b rgnd 10 9 8 rxd txd 1 2 3 4 mcu vcc 485 b u s con con 5 new circuit fig. 1 2. recommended emc circuit gnd + txd l1 rxd con rgn d a b 1 2 3 4 5 10 9 8 tvs1 c1 c2 c3 r4 tvs2 r5 tvs3 tvs4 gdt1 r1 c4 vcc c5 c6 a1 b1 r2 r3 gdt2 gdt3 fig. 2 recommended external circuit parameters: model td301d485/TD501D485 0.25kv/ 0.5kv 0.5kv/ 1kv 1kv/ 2kv 2kv/ 4kv 4kv/ 6kv c1 220uf/10v( electrolytic capacitor ) 220uf/10v( electrolytic capacitor ) tvs1 smcj5.0a ( td301d485 ) / smcj6.5a( TD501D485 ) c2/c3 1uf/50v 1uf/50v l1 10 h 10 h c5/c6 100pf/100v 100pf/100v c4 1nf/2kv 1nf/2kv r1 1m 1m tvs2/tvs3/tvs4 smbj15ca smbj15ca r4/r5 -- -- 10 /2w(wire- wound resistor) 10 /2w(wire- wound resistor) 10 /2w(wire- wound resistor) r2/r3 10 /1w(wire- wound resistor) 10 /2w(wire- wound resistor) -- -- -- gdt1/gdt2/gdt3 -- -- g30-a90x s30-a90x s50-a90x notes: 1 gdt1, gdt2 and gdt3 be used instead of a three terminal gas discharge tube. such as gdt1, gdt2 and gdt3 three two-terminal device available gas discharge tube instead of a three-terminal at " 4kv / 6kv" hierarchy, as b3d090l-c. 2 it is not needed the component when parameter with the symbol of "--". 3. for more information please find the application notes on www.mornsun-power.com
i ndustrial bus t dx01d485 series 201 5 . 09.16 - a/3 page 4 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation dimensions and recommended layout notes: 1. packing information please refer to 'product packing information'. packing bag number: 58040012 ; 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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