Datasheet > ISL32493EIUZ

ISL32493EIUZ

更新时间： 2024-10-01 12:04:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
22页	1212K
描述
Â±60V Fault Protected, 5V, RS-485/RS-422 Transceivers with Â±25V CMR and ESD Protection

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ISL32493EIUZ 数据手册

±60V Fault Protected, 5V, RS-485/RS-422 Transceivers

with ±25V CMR and ESD Protection

ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E,

ISL32498E

The ISL32490E, ISL32492E, ISL32493E, ISL32495E,

ISL32496E, ISL32498E are fault protected, 5V powered,

Features

• Fault Protected RS-485 Bus Pins. . . . . . . . . . . . . . Up to ±60V

differential transceivers that exceed the RS-485 and RS-422

standards for balanced communication. The RS-485 transceiver

pins (driver outputs and receiver inputs) are fault protected up to

±60V and are protected against ±16.5kV ESD strikes without

latch-up. Additionally, the extended common mode range allows

these transceivers to operate in environments with common

mode voltages up to ±25V (>2x the RS-485 requirement),

making this fault protected RS-485 family one of the most

robust on the market.

• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±25V

More than Twice the Range Required for RS-485

• ±16.5kV HBM ESD Protection on RS-485 Bus Pins

• 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

• High Rx I for Opto-Couplers in Isolated Designs

Transmitters (Tx) deliver an exceptional 2.5V (typical)

• Hot Plug Circuitry; Tx and Rx Outputs Remain Three-State

During Power-Up/Power-Down

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 network topologies.

• Choice of RS-485 Data Rates. . . . . . . . . 250kbps to 15Mbps

• Low Quiescent Supply Current . . . . . . . . . . . . . . . . . . . 2.3mA

• Ultra Low Shutdown Supply Current . . . . . . . . . . . . . . . . 10µA

Receiver (Rx) inputs feature a “Full Fail-Safe” design that

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

or on a terminated but undriven (idle) bus. Rx outputs have high

drive levels; typically, 15mA @ V = 1V (for opto-coupled,

isolated applications).

Applications

• Utility Meters/Automated Meter Reading Systems

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.

• High Node Count RS-485 Systems

• PROFIBUS™ and RS-485 Based Field Bus Networks, and

Factory Automation

For fault protected or wide common mode range RS-485

transceivers with cable invert (polarity reversal) pins, please

see the ISL32483E data sheet.

• Security Camera Networks

• Building Lighting and Environmental Control Systems

• Industrial/Process Control Networks

= ±1V

-7

-12

-20

-25

-5

STANDARD RS-485

TRANSCEIVER

CLOSEST

COMPETITOR

ISL3249xE

TIME (20ns/DIV)

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

A ±25V COMMON MODE VOLTAGE

FIGURE 2. ISL3249xE DELIVERS SUPERIOR COMMON MODE

RANGE vs STANDARD RS-485 DEVICES

March 16, 2012

FN7786.2

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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与ISL32493EIUZ相关器件

型号	品牌	获取价格	描述	数据表
ISL32495E	INTERSIL	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495E	RENESAS	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495EIBZ	INTERSIL	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495EIBZ-T	RENESAS	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495EIBZ-T7A	RENESAS	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495EIUZ	INTERSIL	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32495EIUZ-T7A	RENESAS	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32496E	INTERSIL	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32496E	RENESAS	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans
ISL32496EIBZ	INTERSIL	获取价格	±60V Fault Protected, 5V, RS-485/RS-422 Trans

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