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ISL31478EIBZ-T7A

Description
RS-422/RS-485 Interface IC 8LD OVP -40+85 5V RS HD+/-15V CMR 10MBPS
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size1MB,21 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
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ISL31478EIBZ-T7A Overview

RS-422/RS-485 Interface IC 8LD OVP -40+85 5V RS HD+/-15V CMR 10MBPS

ISL31478EIBZ-T7A Parametric

Parameter NameAttribute value
Brand NameRenesas
MakerRenesas Electronics Corporation
Parts packaging codeSOICN
package instruction,
Contacts8
Manufacturer packaging codeM8.158
Reach Compliance Codecompliant
Samacsys DescriptionRS-485/RS-422 Fault Protected Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers
DATASHEET
ISL31470E, ISL31472E, ISL31475E, ISL31478E
Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers
The ISL31470E, ISL31472E, ISL31475E, ISL31478E
are fault protected, extended common mode range
differential transceivers that exceed the RS-485 and
RS-422 standards for balanced communication. The
RS-485 bus pins (driver outputs and receiver inputs)
are protected against overvoltages up to ±60V.
Additionally, these transceivers operate in
environments with common mode voltages up to
±15V (exceeds the RS-485 requirement), making
this RS-485 family one of the more robust on the
market.
Transmitters deliver an exceptional 2.5V (typical)
differential output voltage into the RS-485 specified
54Ω load. This yields better noise immunity than
standard RS-485 ICs, or allows up to six 120Ω
terminations in star topologies.
Receiver (Rx) inputs feature a “Full Fail-Safe” design
which ensures a logic high Rx output if Rx inputs are
floating, shorted, or on a terminated but undriven
(idle) bus. Rx outputs feature high drive levels -
typically 15mA @ V
OL
= 1V (to ease the design of
opto-coupled isolated interfaces).
Half duplex (Rx inputs and Tx outputs multiplexed
together) and full duplex pinouts are available. See
Table 1 on page 2 for key features and configurations
by device number.
For an RS-485 family with a ±25V extended common
mode range, please see the
ISL31490E
and
ISL31480E
data sheets.
FN7639
Rev 1.00
September 3, 2015
Features
• Fault Protected RS-485 Bus Pinsup to ±60V
• Extended Common Mode Range±15V
Larger Than Required for RS-485
• 1/4 Unit Load for up to 128 Devices on the Bus
• High Transient Over Voltage Tolerance±80V
• Full Fail-safe (Open, Short, Terminated) RS-485
Receivers
• High Rx I
OL
for Opto-Couplers in Isolated Designs
• Hot Plug Circuitry - Tx and Rx Outputs Remain
Three-State During Power-up/Power-down
• Choice of RS-485 Data Rates250kbps to 15Mbps
• Low Quiescent Supply Current 2.3mA
Ultra Low Shutdown Supply Current 10µA
• Pb-Free (RoHS Compliant)
Applications
• Utility Meters/Automated Meter Reading Systems
• High Node Count Systems
• PROFIBUS™ and Field Bus Networks, and Factory
Automation
• Security Camera Networks
• Building Lighting and Environmental Control
Systems
• Industrial/Process Control Networks
Exceptional Rx Operates at
>15Mbps Even with ±15V
Common Mode Voltage
20
B
A
VID = ±1V
Transceivers Deliver Superior
Common Mode Range vs
Standard RS-485 Devices
15
12
COMMON MODE RANGE
15
VOLTAGE (V)
10
0
5
RO
-7
0
-15
-5
TIME (20ns/DIV)
STANDARD RS-485
TRANSCEIVER
ISL3147xE
FN7639 Rev 1.00
September 3, 2015
Page 1 of 21

ISL31478EIBZ-T7A Related Products

ISL31478EIBZ-T7A ISL31478EIBZ ISL31478EIBZ-T ISL31475EIBZ-T ISL31472EIBZ-T7A ISL31470EIBZ-T7A ISL31475EIBZ-T7A
Description RS-422/RS-485 Interface IC 8LD OVP -40+85 5V RS HD+/-15V CMR 10MBPS RS-422/RS-485 Interface IC 8LD OVP 5V +/-15V RS-485 1/2 DUPLX 1 RS-422/RS-485 Interface IC 8LD OVP 5V RS-485 HD /-15V CMR 10MBPS RS-422/RS-485 Interface IC 8LD OVP 5V RS-485 HD /-15V CMR 1MBPS T RS-422/RS-485 Interface IC 8LD OVP -40+85 5V RS HD+/-15V CMR 250KBPS RS-422/RS-485 Interface IC 14LD OVP -40+85 5V FD+/-15V CMR 250KBP IC TXRX RS485 FAULT PROT 8SOIC
Brand Name Renesas Intersil Intersil Intersil Renesas Renesas Renesas
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
Parts packaging code SOICN SOIC SOIC SOIC SOICN SOICN SOICN
Contacts 8 8 8 8 8 14 8
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant
Manufacturer packaging code M8.158 - - - M8.158 M14.1514 M8.158
Samacsys Description RS-485/RS-422 Fault Protected Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers - - - RS-485/RS-422 Fault Protected Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers RS-485/RS-422 Fault Protected Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers RS-485/RS-422 Fault Protected Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers
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