LTC1482是Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe

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LTC1482 - LTC1482是Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe

LTC1482是Linear公司的一款RS485 / RS422 收发器产品，LTC1482是Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe，本站介绍了LTC1482的封装应用图解、特点和优点、功能等，并给出了与LTC1482相关的凌力尔特元器件型号供参考。

LTC1482 - Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe

LTC1482 - Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe - Linear Technology（凌力尔特）

功能描述

The LTC®1482 is a low power RS485 compatible transceiver that offers an active low carrier detect output. The open-drain carrier detect pin allows several transceivers to share the same carrier detect line and can be used to detect the insertion or removal of a driven RS485/RS422 cable.Enhanced ESD protection allows the LTC1482 to withstand ±15kV (human body model), IEC-1000-4-2 level 4 (±8kV) contact and level 3 (±8kV) air discharge ESD without latchup or damage.The LTC1482 receiver stays alive at all times except in shutdown. The supply current is a maximum of 700µA and 900μA when the driver is disabled and enabled respectively. In shutdown, the quiescent current of the LTC1482 drops to a maximum of 20µA.When the driver is disabled or the LTC1482 is in shutdown, the driver outputs are three-stated and remain in a high impedance state over the RS485 common mode range.Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit, which forces the driver outputs into a high impedance state.The LTC1482 is fully specified over the commercial and industrial temperature ranges and is available in 8-lead MSOP, PDIP and SO packages.

特点

No Damage or Latchup to ±15kV (Human Body Model), IEC1000-4-2 Level 4 (±8kV) Contact andLevel 3 (±8kV)

Active Low Carrier Detect Output

Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal Present

Drives Low Cost Residential Telephone Wires

Low Power: ICC = 700µA Max with Driver Disabled

ICC = 900µA Max in Driver Mode Without 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

Maximum Data Rate of 4Mbps

Power Up/Down Glitch-Free Driver Outputs

Up to 32 Transceivers on the Bus

Available in 8-Lead MSOP, PDIP and SO Packages

应用

Battery-Powered RS485/RS422 Applications

Low Power RS485/RS422 Transceiver

Level Translator

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1482CMS8	MS-8	C	$3.25	$2.30
LTC1482CMS8#PBF	MS-8	C	$3.25	$2.30
LTC1482CMS8#TR	MS-8	C		$2.36
LTC1482CMS8#TRPBF	MS-8	C		$2.36
LTC1482CN8	N-8	C	$2.65	$1.95
LTC1482CN8#PBF	N-8	C	$2.65	$1.95
LTC1482CS8	SO-8	C	$2.75	$2.00
LTC1482CS8#PBF	SO-8	C	$2.75	$2.00
LTC1482CS8#TR	SO-8	C		$2.06
LTC1482CS8#TRPBF	SO-8	C		$2.06
LTC1482IN8	N-8	I	$3.50	$2.55
LTC1482IN8#PBF	N-8	I	$3.50	$2.55
LTC1482IS8	SO-8	I	$3.65	$2.70
LTC1482IS8#PBF	SO-8	I	$3.65	$2.70
LTC1482IS8#TR	SO-8	I		$2.76
LTC1482IS8#TRPBF	SO-8	I		$2.76