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SN65LBC184_07 PDF预览

SN65LBC184_07

更新时间: 2024-01-11 01:51:55
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德州仪器 - TI /
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21页 507K
描述
DIFFERENTIAL TRANSCEIVER WITH TRANSIENT VOLTAGE SUPPRESSION

SN65LBC184_07 数据手册

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ꢀꢁ ꢂꢃ ꢄ ꢅꢆꢇ ꢈ ꢉ ꢊ ꢀꢁ ꢋꢃ ꢄꢅ ꢆꢇ ꢈꢉ  
ꢌꢍ ꢎꢎ ꢏꢐ ꢏꢁꢑ ꢍꢒ ꢄ ꢑ ꢐꢒꢁ ꢀꢆ ꢏ ꢍꢓ ꢏ ꢐ  
ꢔ ꢍꢑ ꢕ ꢑ ꢐꢒꢁꢀ ꢍꢏꢁ ꢑ ꢓꢖ ꢄꢑꢒꢗ ꢏ ꢀꢘ ꢙꢙꢐ ꢏꢀ ꢀ ꢍꢖ ꢁ  
SLLS236G − OCTOBER 1996 − REVISED MARCH 2007  
D
D
Integrated Transient Voltage Suppression  
SN65LBC184D (Marked as 6LB184)  
SN75LBC184D (Marked as 7LB184)  
SN65LBC184P (Marked as 65LBC184)  
SN75LBC184P (Marked as 75LBC184)  
(TOP VIEW)  
ESD Protection for Bus Terminals Exceeds:  
30 kV IEC 61000-4-2, Contact Discharge  
15 kV IEC 61000-4-2, Air-Gap Discharge  
15 kV EIA/JEDEC Human Body Model  
D
D
D
Circuit Damage Protection of 400-W Peak  
(Typical) Per IEC 61000-4-5  
R
RE  
DE  
D
V
B
A
1
2
3
4
8
7
6
5
CC  
Controlled Driver Output-Voltage Slew  
Rates Allow Longer Cable Stub Lengths  
GND  
250-kbps in Electrically Noisy  
Environments  
D
Open-Circuit Fail-Safe Receiver Design  
functional logic diagram (positive logic)  
D
1/4 Unit Load Allows for 128 Devices  
Connected on Bus  
3
DE  
4
D
D
D
D
Thermal Shutdown Protection  
Power-Up/-Down Glitch Protection  
Each Transceiver Meets or Exceeds the  
Requirements of TIA/EIA-485 (RS-485) and  
ISO/IEC 8482:1993(E) Standards  
D
D
D
Low Disabled Supply Current 300 µA Max  
Pin Compatible With SN75176  
Applications:  
− Industrial Networks  
− Utility Meters  
− Motor Control  
2
RE  
description  
6
A
B
1
Bus  
R
The SN75LBC184 and SN65LBC184 are differ-  
7
ential data line transceivers in the trade-standard  
footprint of the SN75176 with built-in protection  
against high-energy noise transients. This feature  
provides a substantial increase in reliability for  
better immunity to noise transients coupled to the  
data cable over most existing devices. Use of  
these circuits provides a reliable low-cost  
direct-coupled (with no isolation transformer) data  
line interface without requiring any external  
components.  
V
V
P
1/2 V  
P
The SN75LBC184 and SN65LBC184 can with-  
stand overvoltage transients of 400-W peak  
(typical). The conventional combination wave  
called out in IEC 61000-4-5 simulates the  
overvoltage transient and models a unidirectional  
surge caused by overvoltages from switching and  
secondary lightning transients.  
1.2 µs  
t
50 µs  
Figure 1. Surge Waveform — Combination Wave  
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.  
ꢑꢦ  
Copyright 2002, Texas Instruments Incorporated  
ꢢ ꢦ ꢣ ꢢꢛ ꢜꢰ ꢞꢝ ꢡ ꢩꢩ ꢧꢡ ꢟ ꢡ ꢠ ꢦ ꢢ ꢦ ꢟ ꢣ ꢫ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443  

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