Datasheet > ISL32453EIUZ

ISL32453EIUZ

更新时间： 2024-02-16 16:33:18

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
21页	1038K
描述
Â±60V Fault Protected, 3.3V to 5V, Â±20V Common Mode Range, RS-485/RS-422 Transceivers with Cable Invert and Â±15kV ESD

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数据手册

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ISL32453EIUZ 数据手册

±60V Fault Protected, 3.3V to 5V, ±20V Common Mode

Range, RS-485/RS-422 Transceivers with Cable Invert

and ±15kV ESD

ISL32450E, ISL32452E, ISL32453E, ISL32455E, ISL32457E

The ISL32450E through ISL32457E are 3.3V to 5V powered, fault

protected, extended common mode range differential transceivers

Features

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

for balanced communication. The RS-485 bus pins (driver outputs

and receiver inputs) are protected against overvoltages up to

±60V, and against ±15kV ESD strikes. These transceivers operate

in environments with common mode voltages up to ±20V

(exceeds the RS-485 requirement), making this RS-485 family

one of the more robust on the market.

• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±20V

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 (ISL32457E Only)

Corrects for Reversed Cable Connections While Maintaining Rx

Full Fail-safe Functionality

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.

• 1/4 Unit Load for Up to 128 Devices on the Bus

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 full fail-safe operation

is maintained even when the Rx input polarity is switched (cable

invert function on ISL32457E).

• High Transient Overvoltage Tolerance . . . . . . . . . . . . . . . ±80V

• 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

The ISL32457E includes a cable invert function that reverses the

polarity of the Rx and Tx bus pins in case the cable is

misconnected during installation.

• Pb-Free (RoHS Compliant)

See Table 1 on page 2 for key features and configurations by

device number.

Applications

• Utility Meters/Automated Meter Reading Systems

Related Literature

• See FN7784, “ISL32470E, ISL32472E, ISL32475E,

ISL32478E: Fault Protected, Extended Common Mode Range,

RS-485/RS-422 Transceivers with ±16.5kV ESD”

• Air Conditioning Systems

• Security Camera Networks

• Building Lighting and Environmental Control Systems

• Industrial/Process Control Networks

= 3V

VID = ±1V

2Mbps

-7

-20

STANDARD RS-485

TRANSCEIVER

ISL3245XE

TIME (200ns/DIV)

FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON MODE

RANGE vs STANDARD RS-485 DEVICES

FIGURE 1. EXCEPTIONAL ISL32453E RX OPERATES AT >1Mbps

EVEN WITH ±20V COMMON MODE VOLTAGE

February 20, 2012

FN7921.0

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ISL32453EIUZ相关器件

型号	品牌	获取价格	描述	数据表
ISL32455E	INTERSIL	获取价格	Â±60V Fault Protected, 3.3V to 5V, Â±20V Comm
ISL32455E	RENESAS	获取价格	±60V Fault Protected, 3.3V to 5V, ±20V Common
ISL32455EIBZ	INTERSIL	获取价格	Â±60V Fault Protected, 3.3V to 5V, Â±20V Comm
ISL32455EIBZ-T	RENESAS	获取价格	±60V Fault Protected, 3.3V to 5V, ±20V CMR, 1
ISL32455EIBZ-T7A	RENESAS	获取价格	±60V Fault Protected, 3.3V to 5V, ±20V CMR, 1
ISL32455EIUZ	INTERSIL	获取价格	Â±60V Fault Protected, 3.3V to 5V, Â±20V Comm
ISL32455EIUZ-T	RENESAS	获取价格	±60V Fault Protected, 3.3V to 5V, ±20V CMR, 1
ISL32457E	INTERSIL	获取价格	Â±60V Fault Protected, 3.3V to 5V, Â±20V Comm
ISL32457E	RENESAS	获取价格	±60V Fault Protected, 3.3V to 5V, ±20V Common
ISL32457EIBZ	INTERSIL	获取价格	Â±60V Fault Protected, 3.3V to 5V, Â±20V Comm

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