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SN65HVD1781-Q1

更新时间： 2024-09-29 11:58:19
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德州仪器 - TI /
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Fault-Protected RS-485 Transceivers with 3.3-V to 5-V Operation

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SN65HVD1781-Q1 数据手册

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SN65HVD1780-Q1, SN65HVD1781-Q1, SN65HVD1782 -Q1  
www.ti.com  
SLLSE49 –SEPTEMBER 2010  
Fault-Protected RS-485 Transceivers with 3.3-V to 5-V Operation  
Check for Samples: SN65HVD1780-Q1, SN65HVD1781-Q1, SN65HVD1782 -Q1  
These devices combine a differential driver and a  
1
FEATURES  
differential receiver, which operate from a single  
power supply. In the 'HVD1782, the driver differential  
outputs and the receiver differential inputs are  
connected internally to form a bus port suitable for  
half-duplex (two-wire bus) communication. This port  
features a wide common-mode voltage range, making  
the devices suitable for multipoint applications over  
long cable runs. These devices are characterized  
from –40°C to 125°C. These devices are  
pin-compatible with the industry-standard SN75176  
transceiver, making them drop-in upgrades in most  
systems.  
•
Qualified for Automotive Applications  
•
Bus-Pin Fault Protection to:  
–
–
> ±70 V ('HVD1780, 81)  
> ±30 V ('HVD1782)  
•
•
•
•
Operation With 3.3-V to 5-V Supply Range  
±16 kV HBM Protection on Bus Pins  
Reduced Unit Load for up to 320 Nodes  
Failsafe Receiver for Open-Circuit,  
Short-Circuit and Idle-Bus Conditions  
•
Low Power Consumption  
These devices are fully compliant with ANSI TIA/EIA  
485-A with a 5-V supply and can operate with a 3.3-V  
supply with reduced driver output voltage for  
low-power applications. For applications where  
–
–
Low Standby Supply Current, 1 mA Max  
ICC 4 mA Quiescent During Operation  
•
•
Pin-Compatible With Industry-Standard  
SN75176  
operation  
common-mode  
is  
required  
voltage  
over  
range,  
an  
extended  
see  
the  
Signaling Rates of 115 kbps, 1 Mbps, and up  
to 10 Mbps  
SN65HVD1785 (SLLS872) data sheet.  
DESCRIPTION  
These devices are designed to survive overvoltage  
faults such as direct shorts to power supplies,  
mis-wiring faults, connector failures, cable crushes,  
and tool mis-applications. They are also robust to  
ESD events, with high levels of protection to the  
human-body-model specification.  
VFAULT up to 70 V  
M0092-02  
Transceiver  
HVD1780  
HVD1781  
HVD1782  
Signaling Rate  
Number of Nodes  
Up to 115 kbps  
Up to 1 Mbps  
Up to 10 Mbps  
Up to 320  
Up to 320  
Up to 64  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
UNLESS OTHERWISE NOTED this document contains  
Copyright © 2010, Texas Instruments Incorporated  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...18

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 		具有故障保护功能和 3.3V 至 5V 工作电压的汽车类 RS-485 收发器
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