i ndustrial bus t dhx01d485h series 201 5 . 05.21 - a/1 page 1 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation single high speed high isolation rs485 isolation transceiver module features ? two-terminal isolation ( input and output are mutually isolated) ? integrated isolated dc/dc converter ? bus protection ? isolation voltage : 3.75 kv a c ? operating temperature range:-40 ~+105 ? baud rate 115200bps ? connect up to 32 nodes on one bus part number system tdhx01d485h rate interface signal type package serial number isolation power output power input isolation v oltage single type td h 301d485h/td h 501d485h series are transceiver isolation module with integrated power isolation, electrical isolation, and rs485 interface bus protector; the traditional isolation rs485 circuits us es a piece of power isolation module, three optocouplers and rs485 transceiver chip to realize the application. now only a rs485 transceiver module can realize the functions. simplify the customers on the isolation requirements of the design; products can be easily embedded in the user equipment, achieve function of rs485 network connection. selection guide part no. power supply input (vdc) td h 301d485h 3.17~3.45 td h 501d485h 4.75~5.25 input specifications item operating conditions value power input static current products energized, no communication TDH301D485H 5 0ma tdh501d485h 40 ma send current 115200bps square wave communication TDH301D485H 10 0ma tdh501d485h 8 0ma single input serial interface td301d485h c ompatible with + 3.3 v uart interface td501d485h c ompatible with + 5 v uart interface pin current i txd 2 ma; i rxd 2 ma; i con 5ma bus interface item operating conditions value output rs485 bus interface standard interface rs485 , pull-up and pull-down resistor, whose value is 5 . 1 k, have been set to a/b line. transmission specifications item operating conditions value data rate 115200bps (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 control contrary to common rs485 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
i ndustrial bus t dhx01d485h series 201 5 . 05.21 - a/1 page 2 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation truth table receiving status control input output con a-b rxd 1 0.2v 1 1 -0.2v 0 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% 3.75kvac operating temperature -40 ~ +85 transportation and storage temperature -5 5 ~ +105 operating humidity 10% ~ 90% max. operating temperature for casing 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 p lastic package dip10 weight 4.0g(typ.) cooling method free convection emc specifications emi ce cispr22/en55022 class a (see 2 - for recommended circuit) re cispr22/en55022 class a (see 2 - for recommended circuit) ems esd 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 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 please refer to isolated transmitter application notes.
i ndustrial bus t dhx01d485h series 201 5 . 05.21 - a/1 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. emc solution-recommended 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 h /td501d485 h 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 h ) / smcj6.5a( td501d485 h ) 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, gdt4, gdt5 and gdt6 empathy. such as gdt1, gdt2 and gdt3 three two-terminal device available gas discharge tube instead of a three-terminal at " 4kv / 6kv" hierarchy, gdt4, gdt5 and gdt6 empathy, as b3d090l-c. 2. it is not needed the component when parameter with the symbol of "--". 3. for more information please find the application note s on www.mornsun-power.com
i ndustrial bus t dhx01d485h series 201 5 . 05.21 - a/1 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 which can be downloaded from www.mornsun-power.com . packing bag number: 58 220015 ; 2. if the customers u si ng the product for wave soldering, recommended don t open hole on the bottom of the product coverage of pcb board, to avoid the product base thermal deformation ; 3. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% with nominal input voltage and rated output load; 4. all index testing methods in this datasheet are based on our company s corporate standards; 5. 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; 6. we can provide product customization service; 7. 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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