Datasheet MAX845 (Maxim) - 9
| Manufacturer | Maxim |
| Description | Isolated Transformer Driver for PCMCIA Applications |
| Pages / Page | 16 / 9 — Isolated Transformer Driver. for PCMCIA Applications. MAX845 |
| File Format / Size | PDF / 219 Kb |
| Document Language | English |
Isolated Transformer Driver. for PCMCIA Applications. MAX845
Model Line for this Datasheet
Text Version of Document
Isolated Transformer Driver for PCMCIA Applications MAX845
TELEPHONE SUBSCRIBER LINE ISOLATION BARRIER 6.8V D1 1k 2W 6 D2 T1 1N5817 V 1 CC 1:2:1 D1 22k Q1 0.1µF IC2 5V @ 50mA C1 100k 2N3906 IC1 TL431 ISO OUTPUT 0.1µF 22k 100k ISO MAX845 2M 4 8 SD D2 GND 3 D3 FS N.C. 680k 100k 1N5817 GND1 GND2 Q2 2 7 100k 2N3904 Figure 7. 5V from Telephone-Subscriber Line VIN ISOLATION 5V 6 BARRIER VCC 24V UNREGULATED 1 1CT
:
5CT D1 1N5817 10µF IN 78L05 MAX845 GND 4 8 SD D2 OUT GND1 GND2 R 1N5817 L IOUT 2 7 0k to 1k 4mA to 20mA ISO 3 5V 6 1 49.9k 7 3 MAX480 2N3904 7 IL300 2 0.1V to 0.5V 6 2 4 MAX480 2N3904 2 3 6 4 10k 4 5 49.9k 24.9Ω Figure 8. Typical 4mA/20mA Application Circuit
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TELEPHONE SUBSCRIBER LINE ISOLATION BARRIER 6.8V D1 1k 2W 6 D2 T1 1N5817 V 1 CC 1:2:1 D1 22k Q1 0.1µF IC2 5V @ 50mA C1 100k 2N3906 IC1 TL431 ISO OUTPUT 0.1µF 22k 100k ISO MAX845 2M 4 8 SD D2 GND 3 D3 FS N.C. 680k 100k 1N5817 GND1 GND2 Q2 2 7 100k 2N3904 Figure 7. 5V from Telephone-Subscriber Line VIN ISOLATION 5V 6 BARRIER VCC 24V UNREGULATED 1 1CT
:
5CT D1 1N5817 10µF IN 78L05 MAX845 GND 4 8 SD D2 OUT GND1 GND2 R 1N5817 L IOUT 2 7 0k to 1k 4mA to 20mA ISO 3 5V 6 1 49.9k 7 3 MAX480 2N3904 7 IL300 2 0.1V to 0.5V 6 2 4 MAX480 2N3904 2 3 6 4 10k 4 5 49.9k 24.9Ω Figure 8. Typical 4mA/20mA Application Circuit
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