ISO3080_15 Datasheet, PDF (1/31 Pages) Texas Instruments – Isolated 5-V Full- and Half-Duplex RS-485 Transceivers

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ISO3080, ISO3082, ISO3086, ISO3088
SLOS581H – MAY 2008 – REVISED DECEMBER 2015
ISO308x Isolated 5-V Full- and Half-Duplex RS-485 Transceivers
1 Features
•1 Meets or Exceeds TIA/EIA RS-485 Requirements
• Signaling Rates up to 20 Mbps
• 1/8 Unit Load – Up to 256 Nodes on a Bus
• Thermal Shutdown Protection
• Low Bus Capacitance – 16 pF (Typical)
• 50 kV/μs Typical Transient Immunity
• Fail-safe Receiver for Bus Open, Short, Idle
• 3.3-V Inputs are 5-V Tolerant
• Bus-Pin ESD Protection
– 12 kV HBM Between Bus Pins and GND2
– 6 kV HBM Between Bus Pins and GND1
• Safety and Regulatory Approvals
– 4000-V_PK Basic Insulation, 560 V_PK V_IORM per
DIN V VDE V 0884-10 (VDE V 0884-10):
2006-12 and DIN EN 61010-1
– 2500 V_RMS Isolation per UL 1577
– 4000 V_PK Isolation per CSA Component
Acceptance Notice 5A and IEC 60950-1
2 Applications
• Security Systems
• Chemical Production
• Factory Automation
• Motor and Motion Control
• HVAC and Building Automation Networks
• Networked Security Stations
3 Description
The ISO3080 and ISO3086 devices are isolated full-
duplex differential line drivers and receivers while the
ISO3082 and ISO3088 devices are isolated half-
duplex differential line transceivers for TIA/EIA
485/422 applications.
These devices are ideal for long transmission lines
because the ground loop is broken to allow for a
much larger common-mode voltage range. The
symmetrical isolation barrier of the device is tested to
provide 2500 Vrms of isolation for 60s per UL 1577
between the bus-line transceiver and the logic-level
interface.
Any cabled I/O can be subjected to electrical noise
transients from various sources. These noise
transients can cause damage to the transceiver
and/or nearby sensitive circuitry if they are of
sufficient magnitude and duration. These isolated
devices can significantly increase protection and
reduce the risk of damage to expensive control
circuits.
The ISO3080, ISO3082, ISO3086, and ISO3088 are
qualified for use from –40°C to 85°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ISO3080
ISO3082
ISO3086
SOIC (16)
10.30 mm × 7.50 mm
ISO3088
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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ISO3080, IOS3086 Function Diagram
3
R
4
RE
DE ⁵
6
D
14
A
13
B
12
Z
11
Y
ISO3082, IOS3088 Function Diagram
5
DE
6
D
R3
RE ⁴
13
B
12
A
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.