ISL32430EIUZ-T7A datasheet, PDF

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ISL32430EIUZ-T7A: Description完全版收发器 1/1 RS422，RS485 10-MSOP; Categorysemiconductor The interface of IC; File Size1MB，22 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/; Environmental Compliance

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ISL32430EIUZ-T7A Overview

完全版收发器 1/1 RS422，RS485 10-MSOP

ISL32430EIUZ-T7A Parametric

Parameter Name	Attribute value
category
Maker	Renesas Electronics Corporation
series	-
Package	卷带（TR）剪切带（CT）Digi-Reel®
type	transceiver
protocol	RS422，RS485
Number of drivers/receivers	1/1
duplex	Full Edition
data rate	250kbps
Voltage - Power supply	3V ~ 5.5V
Operating temperature	-40°C ~ 85°C
Installation type	surface mount type
Package/casing	10-TFSOP, 10-MSOP (0.118", 3.00mm wide)
Supplier device packaging	10-MSOP
receiver lag	30 mV
Basic product number	ISL32430

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DATASHEET

ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E

±40V Fault Protected, 3.3V to 5V, ±15V Common-Mode Range, RS-485/RS-422

Transceivers With Cable Invert and ±15kV ESD

The

ISL32430E, ISL32432E, ISL32433E, ISL32435E,

and

ISL32437E

are 3.3V to 5V powered, fault protected, extended

common-mode range differential transceivers for balanced

communication. The RS-485 bus pins, driver outputs and

receiver inputs, are protected against overvoltages up to ±40V

and against ±15kV ESD strikes. 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 most robust on the market.

The transmitters are RS-485 compliant with V

≥

4.5V and

deliver a 1.1V differential output voltage into the RS-485

specified 54Ω load even with V

= 3V.

The receiver (Rx) inputs feature a full fail-safe design that

ensures a logic high Rx output if the Rx inputs are floating,

shorted, or on a terminated but undriven (idle) bus. The Rx full

fail-safe operation is maintained even when the Rx input polarity

is switched (cable invert function on ISL32437E).

The ISL32437E includes a cable invert function that reverses

the polarity of the Rx and Tx bus pins if the cable is

misconnected during installation.

See

Table 1 on page 4

for key features and configurations by

device number.

FN7920

Rev.1.00

Feb 15, 2019

Features

• Fault protected RS-485 bus pins . . . . . . . . . . . . . . up to ±40V

• Extended common-mode range. . . . . . . . . . . . . . . . . . . . ±15V

larger than required for RS-485

• ±15kV HBM ESD protection on RS-485 bus pins

• Wide supply range . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 5.5V

• Cable invert pin corrects for reversed cable connections

while maintaining Rx full fail-safe functionality (ISL32437E

only)

• 1/4 Unit load for up to 128 devices on the bus

• High transient overvoltage tolerance. . . . . . . . . . . . . . . . ±60V

• Full fail-safe (open, short, terminated) RS-485 receivers

• Choice of RS-485 data rates . . . . . . . . . . . . . 250kbps or 1Mbps

• Low quiescent supply current. . . . . . . . . . . . . . . . . . . . 2.1mA

• Ultra low shutdown supply current. . . . . . . . . . . . . . . . . . 10µA

• Pb-free (RoHS compliant)

Applications

• Utility meters/automated meter reading systems

• Air conditioning systems

• Security camera networks

• Building lighting and environmental control systems

• Industrial/process control networks

Related Literature

For a full list of related documents, visit our website:

•

ISL32430E, ISL32432E, ISL32433E, ISL32435E,

and

ISL32437E

device pages

VOLTAGE (V)

VID = ±1V

2Mbps

COMMON-MODE RANGE (V)

= 3V

-7

-15

TIME (200ns/DIV)

STANDARD RS-485

TRANSCEIVER

ISL3243XE

FIGURE 1. EXCEPTIONAL ISL32433E RX OPERATES AT >1Mbps

EVEN WITH ±15V COMMON-MODE VOLTAGE

FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON-MODE

RANGE vs STANDARD RS-485 DEVICES

FN7920 Rev.1.00

Feb 15, 2019

Page 1 of 22

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