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TDH301D485H Fiches technique(PDF) 3 Page - MORNSUN Science& Technology Ltd. |
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TDH301D485H Fiches technique(HTML) 3 Page - MORNSUN Science& Technology Ltd. |
3 / 4 page Industrial Bus TDHx01D485H Series 2015.05.21-A/1 Page 3 of 4 MORNSUN 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 Bus 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 ① ② R4 TVS2 R5 TVS3 TVS4 GDT1 R1 C4 ③ VCC C5 C6 A1 B1 R2 R3 GDT2 GDT3 ④ Fig. 2 Recommended external circuit parameters: Model TD301D485H/TD501D485H ±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 (TD301D485H) / SMCJ6.5A(TD501D485H) C2/C3 1uF/50V 1uF/50V L1 10μH 10μH C5/C6 100pF/100V 100pF/100V C4 1nF/2KV 1nF/2KV R1 1MΩ 1MΩ TVS2/TVS3/TVS4 SMBJ15CA SMBJ15CA R4/R5 -- -- 10Ω/2W(Wire- wound resistor) 10Ω/2W(Wire- wound resistor) 10Ω/2W(Wire- wound resistor) R2/R3 10Ω/1W(Wire- wound resistor) 10Ω/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 notes on www.mornsun-power.com |
Numéro de pièce similaire - TDH301D485H_15 |
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Description similaire - TDH301D485H_15 |
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