DE

5

D

6

R

3

4

RE

Y

Z

B

A

14

11

12

13

ISO35x

ISO15x

D

R

B

A

13

12

DE

6

5

3

4

RE

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ISO15, ISO35, ISO15M, ISO35M

SLOS580G – MAY 2008 – REVISED MARCH 2015

ISOx5 Isolated 3.3-V Half- and Full-Duplex RS-485 Transceivers

1 Features

3 Description

The ISO15 is an isolated half-duplex differential line

1

•

Meets or Exceeds TIA/EIA RS-485 Requirements

transceiver while the ISO35 is an isolated full-duplex

•

1/8 Unit Load – Up to 256 Nodes on a Bus

differential line driver and receiver for TIA/EIA

•

Signaling Rates up to 1 Mbps

485/422 applications. The ISO15M and ISO35M have

extended ambient temperature ratings of –55°C to

•

Thermal Shutdown Protection

125°C while the ISO15 and ISO35 are specified over

•

Low Bus Capacitance – 16 pF (Typical)

–40°C to 85°C.

•

50 kV/

μs Typical Transient Immunity

These devices are ideal for long transmission lines

•

Fail-safe Receiver for Bus Open, Short, Idle

because the ground loop is broken to allow for a

•

3.3-V Inputs are 5-V Tolerant

much larger common-mode voltage range. The

symmetrical barrier of the device is tested to provide

•

Safety and Regulatory Approvals

isolatlion of 4000 VPK per VDE and 2500 VRMS per UL

–

4000-VPK VIOTM, 560-VPK VIORM per DIN V VDE

and CSA between the bus-line transceiver and the

V 0884-10 (VDE V 0884-10):2006-12 and DIN

logic-level interface.

EN 61010-1

Any cabled I/O can be subjected to electrical noise

–

2500 VRMS Isolation Rating per UL 1577

transients

from

various

sources.

These

noise

–

2500 VRMS Isolation Rating per CSA CA5A and

transients can cause damage to the transceiver

IEC 60950-1

and/or nearby sensitive circuitry if they are of

sufficient magnitude and duration. These isolated

2 Applications

devices can significantly increase protection and

reduce the risk of damage to expensive control

•

Security Systems

circuits.

•

Chemical Production

•

Factory Automation

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Motor and Motion Control

ISO15

•

HVAC and Building Automation Networks

SOIC (16)

10.30 mm × 7.50 mm

ISO35

•

Networked Security Stations

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

4 Simplified Schematics

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.