Datasheet > LTC1484

LTC1484

更新时间： 2024-01-18 03:44:28

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	277K
描述
Low Power RS485 Transceiver with Receiver Fail-Safe

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中文翻译

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数据手册

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LTC1484 数据手册

LTC1484

Low Power

RS485 Transceiver

with Receiver Fail-Safe

DESCRIPTIO

FEATURES

The LTC^®1484 is a low power RS485 compatible trans-

ceiver. Inreceivermode, itoffersafail-safefeaturewhich

guarantees a high receiver output state when the inputs

■

No Damage or Latchup to

Body Model), IEC-1000-4-2 Level 4 Contact (±8kV)

15kV ESD (Human

and Level 3 (±8kV) Air Gap Specifications

■

Guaranteed High Receiver Output State for Floating, are left open, shorted together or terminated with no

Shorted or Terminated Inputs with No Signal

Present

Drives Low Cost Residential Telephone Wires

Low Power: I_CC= 700µA Max with Driver Disabled

I_CC= 900µA Max for Driver Enable with No Load

20µA Max Quiescent Current in Shutdown Mode

Single 5V Supply

–7V to 12V Common Mode Range Permits ±7V

Ground Difference Between Devices on the Data Line

Power Up/Down Glitch-Free Driver Outputs

Up to 32 Transceivers on the Bus

signal present. No external components are required to

ensure the high receiver output state.

■

Both driver and receiver feature three-state outputs with

separate receiver and driver control pins. The driver

outputs maintain high impedance over the entire com-

mon mode range when three-stated. Excessive power

dissipation caused by bus contention or faults is pre-

vented by a thermal shutdown circuit that forces the

driver outputs into a high impedance state.

■

Enhanced ESD protection allows the LTC1484 to with-

stand ±15kV (human body model), IEC-1000-4-2 level 4

(±8kV) contact and level 3 (±8kV) air discharge ESD

without latchup or damage.

Pin Compatible with the LTC485

Available in 8-Lead MSOP, PDIP and SO Packages

The LTC1484 is fully specified over the commercial and

industrial temperature ranges and is available in 8-lead

MSOP, PDIP and SO packages.

APPLICATIO S

■

Battery-Powered RS485/RS422 Applications

■

Low Power RS485/RS422 Transceiver

, LTC and LT are registered trademarks of Linear Technology Corporation.

■

Level Translator

TYPICAL APPLICATIO

Driving a 2000 Foot STP Cable

RS485 Interface

Dl1

LTC1484

RO2

RE2

DE2

DI2

RO1

RE1

DE1

DI1

CC2

CC1

120Ω

GND1

120Ω

GND2

RO2

1484 TA01

Dl1 ↑↓

Dl2 = 0

DE1 = V_CC

DE2 = 0

1484 TA01a

RE1 = RE2 = 0

12 3 4 5 6 7...16

中文翻译

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与LTC1484相关器件

型号	品牌	获取价格	描述	数据表
LTC1484C	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe
LTC1484CMS8	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe
LTC1484CMS8#TR	Linear	获取价格	暂无描述
LTC1484CMS8#TRPBF	Linear	获取价格	LTC1484 - Low Power RS485 Transceiver with Receiver Fail-Safe; Package: MSOP; Pins: 8; Tem
LTC1484CN8	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe
LTC1484CN8#PBF	Linear	获取价格	暂无描述
LTC1484CS8	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe
LTC1484CS8#PBF	Linear	获取价格	暂无描述
LTC1484I	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe
LTC1484IN8	Linear	获取价格	Low Power RS485 Transceiver with Receiver Fail-Safe

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