12

LTC1535

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

© LINEAR TECHNOLOGY CORPORATION 1999

1535i LT/TP 0899 4K • PRINTED IN USA

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LTC1177

Isolated MOSFET Driver

LT1424-5

Isolated Flyback Switching Regulator

±5% Accurate with No Optoisolator Required

LTC1485

High Speed RS485 Transceiver

10Mbps, Pin Compatible with LTC485

LTC1531

Self-Powered Isolated Comparator

LT1785/LT1791

±60V Fault Protected RS485 Transceiver, Half/Full-Duplex

±15kV ESD Protection, Industry Standard Pinout

LTC1690

Full-Duplex RS485 Transceiver

±15kV ESD Protection, Fail-Safe Receiver

TYPICAL APPLICATIO

120

Ω

**

D

Y

Z

SLO

2

1

1

R

A

120

Ω

B

RO2

1535 TA02

RO

RE

DE

DI

GND

LOGIC COMMON

2

FLOATING RS485 COMMON

** TRANSFORMER

COILTRONICS (561) 241-7876

400kHz

28

27

26

25

4

17

15

16

18

12

13

14

11

1

+

+

GND2

1/2 BAT54C

1/2 BAT54C

ST1

ST2

3

2

RO

RE

DE

DI

1

10

µF

10

µF

2

CTX02-14659

Figure 18. Full-Duplex Connection