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LT1381 Datasheet(数据表) 6 Page - Linear Technology |
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LT1381 Datasheet(HTML) 6 Page - Linear Technology |
6 page ![]() 6 LT1381 TYPICAL APPLICATIO S Isolated RS232 Driver/Receiver ILIM LT1111 FB SW2 VIN SW1 GND 1N5818 L1 20 µH CTX20-1 1:1 47 Ω 10k 1k 1N5818 100 µF 1 Ω LT1121-5 100 µF VIN = 5V ±10% FROM SYSTEM 5V ±10% VCC GND1 IN GND2 13.7V LT1381 RS232 GND2 OS GND1 VCC OS IN 1 3 4 5 16 2 6 98 11 14 RS232 INPUT RS232 OUTPUT VOUT VIN ISOLATOR OUTPUT (DATA TO SYSTEM) ISOLATOR INPUT (DATA FROM SYSTEM) LTC1145 LTC1145 ISOLATION BARRIER FLOATING GROUND LT1381 • TA03 RX DX VCC 15 SYSTEM GROUND + + 10 µF + 0.1 µF + 0.1 µF + 0.1 µF + 0.1 µF 1 µF 0.1 µF + ISOLATOR OUTPUT RS232 INPUT ISOLATOR INPUT RS232 OUTPUT Data Transmission Across Isolation Barrier 1381 TA04 1381 TA05 |