Datasheet > ISL31475E

ISL31475E

更新时间： 2023-12-20 18:45:23

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
21页	1449K
描述
Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers

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ISL31475E 数据手册

DATASHEET

ISL31470E, ISL31472E, ISL31475E, ISL31478E

Fault Protected, Extended Common-Mode Range, RS-485/RS-422 Transceivers

The ISL31470E, ISL31472E, ISL31475E, and ISL31478E are

Features

fault protected, extended common-mode range differential

• Fault protected RS-485 bus pins . . . . . . . . . . . . . . up to ±60V

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.

• 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 overvoltage tolerance . . . . . . . . . . . . . . . ±80V

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

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.

• High Rx I 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 rates. . . . . . . . . . . . .250kbps to 15Mbps

• Low quiescent supply current. . . . . . . . . . . . . . . . . . . . 2.3mA

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

• Pb-free (RoHS compliant)

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

outputs feature high drive levels - typically 15mA at V = 1V (to

ease the design of opto-coupled isolated interfaces).

Applications

Half duplex (Rx inputs and Tx outputs multiplexed together)

and full duplex pinouts are available. See Table 1 on page 3 for

key features and configurations by device number.

• Utility meters/automated meter reading systems

• High node count systems

For an RS-485 family with a ±25V extended common-mode

range, see the ISL31490E datasheet.

• PROFIBUS™ and field bus networks, and factory automation

• Security camera networks

• Building lighting and environmental control systems

• Industrial/process control networks

VID = ±1V

-7

-15

-5

STANDARD RS-485

TRANSCEIVER

ISL3147xE

TIME (20ns/DIV)

FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON-MODE

RANGE vs STANDARD RS-485 DEVICEs

FIGURE 1. EXCEPTIONAL Rx OPERATES AT >15Mbps EVEN WITH

±15V COMMON MODE VOLTAGE

FN7639 Rev.2.02

Oct 2, 2023

Page 1 of 20

12 3 4 5 6 7...21

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与ISL31475E相关器件

型号	品牌	描述	获取价格	数据表
ISL31475EIBZ	INTERSIL	Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers	获取价格
ISL31475EIBZ-T	RENESAS	Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers; SOIC8; Temp Range	获取价格
ISL31478E	INTERSIL	Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers	获取价格
ISL31478EIBZ	INTERSIL	Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers	获取价格
ISL3147XE	INTERSIL	Providing high-performance solutions for every link in the signal chain	获取价格
ISL31480E	INTERSIL	Fault Protected, Extended CMR, RS-485/RS-422 Transceivers with Cable Invert	获取价格

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