SN65LBC180-Q1 [TI]

LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIR; 低功耗差动线路驱动器和接收器对
SN65LBC180-Q1
型号: SN65LBC180-Q1
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIR
低功耗差动线路驱动器和接收器对

驱动器
文件: 总17页 (文件大小:276K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈꢉ ꢊꢋ ꢇ  
ꢄꢌ ꢍꢊꢎ ꢌꢍ ꢏꢐ ꢑꢒ ꢓꢓ ꢏꢐ ꢏꢁꢔ ꢒꢕ ꢄ ꢄ ꢒꢁꢏ ꢑꢐꢒ ꢖꢏ ꢐ ꢕꢁꢑ ꢐꢏꢆ ꢏꢒꢖ ꢏ ꢐ ꢎꢕ ꢒꢐ  
SGLS251A − JULY 2004 − REVISED JUNE 2008  
D PACKAGE  
(TOP VIEW)  
D
D
D
Qualified for Automotive Applications  
Designed for High-Speed Multipoint Data  
Transmission Over Long Cables  
NC  
V
V
A
B
Z
Y
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
CC  
CC  
Operate With Pulse Durations as Low  
as 30 ns  
R
RE  
DE  
D
D
Low Supply Current . . . 5 mA Max  
D
Meet or Exceed the Requirements of ANSI  
Standard RS-485 and ISO 8482:1987(E)  
GND  
GND  
8
NC  
D
D
3-State Outputs for Party-Line Buses  
Common-Mode Voltage Range of  
−7 V to 12 V  
NCNo internal connection  
Function Tables  
D
D
D
Thermal Shutdown Protection Prevents  
Driver Damage From Bus Contention  
DRIVER  
Positive and Negative Output Current  
Limiting  
INPUT  
ENABLE  
OUTPUTS  
D
H
L
DE  
H
H
Y
H
L
Z
L
H
Z
Pin Compatible With the SN75ALS180  
X
L
Z
description  
RECEIVER  
The SN65LBC180 differential driver and receiver  
pair is a monolithic integrated circuit designed for  
bidirectional data communication over long  
cables that take on the characteristics of  
transmission lines. It is a balanced, or differential,  
voltage mode device that meets or exceeds the  
requirements of industry standards ANSI RS-485  
and ISO 8482:1987(E). The device is designed  
using TI’s proprietary LinBiCMOSwith the low  
power consumption of CMOS and the precision  
and robustness of bipolar transistors in the same  
circuit.  
DIFFERENTIAL INPUTS  
A−B  
ENABLE  
OUTPUT  
RE  
L
L
L
H
L
R
H
?
L
Z
H
V
0.2 V  
ID  
− 0.2 V  
X
ID  
0.2 V < V < 0.2 V  
V
ID  
Open circuit  
H = high level, L = low level, ? = indeterminate, X = irrelevant,  
Z = high impedance (off)  
logic diagram (positive logic)  
4
DE  
The SN65LBC180 combines a differential line  
driver and receiver with 3-state outputs and  
operates from a single 5-V supply. The driver and  
receiver have active-high and active-low enables,  
respectively, which can be externally connected to  
function as a direction control. The driver  
differential outputs and the receiver differential  
inputs are connected to separate terminals for  
full-duplex operation and are designed to present  
minimum loading to the bus whether disabled or  
9
5
Y
Z
D
10  
3
2
RE  
12  
11  
A
B
R
powered off (V  
= 0). This part features a wide  
CC  
common-mode voltage range making it suitable  
for point-to-point or multipoint data-bus  
applications.  
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.  
LinBiCMOS is a trademark of Texas Instruments Incorporated.  
ꢎꢐ ꢌ ꢑꢗ ꢆ ꢔꢒ ꢌ ꢁ ꢑ ꢕꢔꢕ ꢘꢙ ꢚ ꢛꢜ ꢝ ꢞꢟ ꢘꢛꢙ ꢘꢠ ꢡꢢ ꢜ ꢜ ꢣꢙꢟ ꢞꢠ ꢛꢚ ꢤꢢꢥ ꢦꢘꢡ ꢞꢟ ꢘꢛꢙ ꢧꢞ ꢟꢣ ꢨ  
ꢎꢜ ꢛ ꢧꢢꢡ ꢟ ꢠ ꢡ ꢛꢙ ꢚꢛ ꢜ ꢝ ꢟ ꢛ ꢠ ꢤꢣ ꢡ ꢘꢚ ꢘꢡꢞ ꢟꢘ ꢛꢙꢠ ꢤꢣ ꢜ ꢟꢩ ꢣ ꢟꢣ ꢜ ꢝꢠ ꢛꢚ ꢔꢣꢪ ꢞꢠ ꢒꢙꢠ ꢟꢜ ꢢꢝ ꢣꢙꢟ ꢠ  
ꢠ ꢟ ꢞ ꢙꢧ ꢞ ꢜꢧ ꢫ ꢞ ꢜꢜ ꢞ ꢙ ꢟꢬꢨ ꢎꢜ ꢛ ꢧꢢꢡ ꢟꢘꢛꢙ ꢤꢜ ꢛꢡ ꢣꢠ ꢠꢘ ꢙꢭ ꢧꢛꢣ ꢠ ꢙꢛꢟ ꢙꢣ ꢡꢣ ꢠꢠ ꢞꢜ ꢘꢦ ꢬ ꢘꢙꢡ ꢦꢢꢧ ꢣ  
ꢟ ꢣ ꢠ ꢟꢘ ꢙꢭ ꢛꢚ ꢞ ꢦꢦ ꢤꢞ ꢜ ꢞ ꢝ ꢣ ꢟ ꢣ ꢜ ꢠ ꢨ  
Copyright 2008 Texas Instruments Incorporated  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
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ꢁꢔ  
ꢕꢄ  
ꢖꢏ  
ꢏꢒ  
ꢎꢕ  
SGLS251A − JULY 2004 − REVISED JUNE 2008  
description/ordering information (continued)  
{
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
}
T
A
PACKAGE  
−40°C to 85°C  
SOIC − D  
Tape and reel  
SN65LBC180IDRQ1  
LBC180Q1  
For the most current package and ordering information, see the Package Option Addendum at the end of  
this document, or see the TI web site at http://www.ti.com.  
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.  
The devices also provide positive and negative output-current limiting and thermal shutdown for protection from  
line fault conditions. The line driver shuts down at a junction temperature of approximately 172°C.  
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
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ꢌꢍ  
ꢑꢒ  
ꢒꢕ  
SGLS251A − JULY 2004 − REVISED JUNE 2008  
schematics of inputs and outputs  
EQUIVALENT OF D, DE, AND RE INPUTS  
RECEIVER A INPUT  
V
CC  
V
CC  
100 kΩ  
NOM  
18 kΩ  
3 kΩ  
NOM  
22 kΩ  
NOM  
Input  
Input  
12 kΩ  
1.1 kΩ  
NOM  
DRIVER OUTPUT  
TYPICAL OF RECEIVER OUTPUT  
V
RECEIVER B INPUT  
V
CC  
CC  
V
CC  
3 kΩ  
NOM  
18 kΩ  
NOM  
Input  
A Output  
Output  
100 kΩ  
NOM  
12 kΩ  
1.1 kΩ  
NOM  
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)  
Supply voltage range, V  
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V  
CC  
Input voltage range, V (A, B)(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10 V to 15 V  
I
Voltage range at D, R, DE, RE (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to V  
+ 0.5 V  
CC  
Continuous total power dissipation (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited  
Total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table  
Operating free-air temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C  
A
Storage temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C  
stg  
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C  
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
NOTES: 1. All voltage values are with respect to GND.  
2. The maximum operating junction temperature is internally limited. Use the dissipation rating table to operate below this temperature.  
DISSIPATION RATING TABLE  
T
25°C  
DERATING FACTOR  
T
= 70°C  
T = 85°C  
A
A
A
PACKAGE  
POWER RATING  
ABOVE T = 25°C  
POWER RATING POWER RATING  
A
D
950 mW  
7.6 mW/°C  
608 mW 494 mW  
recommended operating conditions  
MIN NOM  
MAX  
UNIT  
Supply voltage, V  
CC  
4.75  
2
5
5.25  
V
V
V
V
V
High-level input voltage, V  
IH  
D, DE, and RE  
Low-level input voltage, V  
IL  
D, DE, and RE  
0.8  
6
Differential input voltage, V  
ID  
−6  
Voltage at any bus terminal (separately or common mode), V , V , or V  
IC  
A, B, Y, or Z  
−7  
12  
60  
−8  
60  
8
O
I
Y or Z  
R
High-level output current, I  
mA  
OH  
Y or Z  
R
Low-level output current, I  
mA  
OL  
Operating free-air temperature, T  
40  
85  
°C  
A
The algebraic convention where the least positive (more negative) limit is designated minimum, is used in this data sheet for the differential input  
voltage, voltage at any bus terminal, operating temperature, input threshold voltage, and common-mode output voltage.  
4
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
DRIVER SECTION  
electrical characteristics over recommended operating conditions (unless otherwise noted)  
PARAMETER  
Input clamp voltage  
TEST CONDITIONS  
MIN TYP  
MAX  
1.5  
5
UNIT  
V
IK  
I = 18 mA  
V
I
R
= 54 ,  
= 60 ,  
See Figure 1  
See Figure 2  
1.1  
1.1  
2.5  
2
Differential output voltage magnitude  
(see Note 3)  
L
L
| V  
OD  
|
V
R
5
Change in magnitude of differential output  
voltage (see Note 4)  
| V  
|
|
See Figures 1 and 2  
0.2  
3
V
V
V
OD  
V
OC  
Common-mode output voltage  
1
2.5  
R
= 54 ,  
See Figure 1  
Change in magnitude of common-mode output  
voltage (see Note 4)  
L
| V  
0.2  
OC  
I
I
I
I
I
Output current with power off  
High-impedance-state output current  
High-level input current  
V
V
= 0,  
V = 7 V to 12 V  
O
100  
100  
100  
100  
250  
5
µA  
µA  
µA  
µA  
mA  
O
CC  
= 7 V to 12 V  
O
OZ  
IH  
IL  
V = 2.4 V  
I
Low-level input current  
V = 0.4 V  
I
Short-circuit output current  
−7 V V 12 V  
OS  
O
Outputs enabled  
Outputs disabled  
I
Supply current  
Receiver disabled  
mA  
CC  
3
All typical values are at V  
= 5 V and T = 25°C.  
A
OD  
CC  
NOTES: 3. The minimum V  
specification of the SN65LBC180 may not fully comply with ANSI RS-485 at operating temperatures below 0°C.  
System designers should take the possibly lower output signal into account in determining the maximum signal-transmission  
distance.  
4. |V  
OD  
| and |V  
OC  
| are the changes in the steady-state magnitude of V  
changed from a high level to a low level.  
and V  
, respectively, that occur when the input is  
OC  
OD  
switching characteristics, V  
= 5 V, T = 25°C  
A
CC  
PARAMETER  
TEST CONDITIONS  
= 54 Ω, See Figure 3  
MIN  
7
TYP  
12  
MAX  
18  
UNIT  
ns  
t
t
t
t
t
t
Differential output delay time  
d(OD)  
t(OD)  
PZH  
PZL  
R
L
Differential output transition time  
Output enable time to high level  
Output enable time to low level  
Output disable time from high level  
Output disable time from low level  
5
10  
20  
ns  
R
R
R
R
= 110 ,  
= 110 ,  
= 110 ,  
= 110 ,  
See Figure 4  
See Figure 5  
See Figure 4  
See Figure 5  
35  
ns  
L
L
L
L
35  
ns  
50  
ns  
PHZ  
PLZ  
35  
ns  
5
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
RECEIVER SECTION  
electrical characteristics over recommended operating conditions (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
= 8 mA  
MIN  
TYP  
MAX  
UNIT  
V
V
V
V
V
V
V
Positive-going input threshold voltage  
Negative-going input threshold voltage  
I
I
0.2  
IT+  
IT−  
hys  
IK  
O
= 8 mA  
0.2  
V
O
Hysteresis voltage (V  
IT+  
− V  
)
45  
mV  
V
IT−  
Enable-input clamp voltage  
High-level output voltage  
Low-level output voltage  
I = 18 mA  
1.5  
I
V
V
V
V
V
= 200 mV,  
I
I
= 8 mA  
= 8 mA  
3.5  
4.5  
0.3  
V
OH  
OL  
ID  
ID  
O
OH  
= 200 mV,  
0.5  
20  
V
OL  
I
I
I
High-impedance-state output current  
High-level enable-input current  
Low-level enable-input current  
= 0 V to V  
= 2.4 V  
µA  
µA  
µA  
OZ  
CC  
50  
100  
IH  
IL  
IH  
IL  
= 0.4 V  
V = 12 V,  
Other input at 0 V  
V
CC  
V
CC  
V
CC  
V
CC  
= 5 V,  
= 0 V,  
= 5 V,  
= 0 V,  
I
0.7  
0.8  
1
1
V = 12 V,  
I
Other input at 0 V  
I
Bus input current  
Supply current  
mA  
mA  
I
V = 7 V,  
I
Other input at 0 V  
0.5  
0.5  
0.8  
0.8  
V = 7 V,  
I
Other input at 0 V  
Outputs enabled  
Outputs disabled  
5
3
I
Driver disabled  
CC  
switching characteristics, V  
= 5 V, T = 25°C  
A
CC  
PARAMETER  
TEST CONDITIONS  
MIN  
11  
TYP  
22  
22  
3
MAX  
33  
UNIT  
ns  
t
t
t
Propagation delay time, high- to low-level output  
Propagation delay time, low- to high-level output  
PHL  
PLH  
sk(p)  
11  
33  
ns  
V
ID  
= −1.5 V to 1.5 V,  
See Figure 6  
Pulse skew (t  
− t  
)  
6
ns  
PHL PLH  
t
t
t
t
t
Transition time  
5
8
35  
30  
35  
30  
ns  
ns  
ns  
ns  
ns  
t
Output enable time to high level  
Output enable time to low level  
Output disable time from high level  
Output disable time from low level  
PZH  
PZL  
PHZ  
PLZ  
See Figure 7  
6
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
PARAMETER MEASUREMENT INFORMATION  
Y
R
2
L
L
D
V
OD  
0 V or 3 V  
R
2
V
OC  
DE at 3 V  
Z
Figure 1. Differential and Common-Mode Output Voltages  
V
test  
−7 V < V  
test  
< 12 V  
R1  
375 Ω  
Y
D
R
= 60 Ω  
V
OD  
L
0 V or 3 V  
Z
DE at 3 V  
R2  
375 Ω  
V
test  
Figure 2. Driver V  
Test Circuit  
OD  
3 V  
Input  
1.5 V  
1.5 V  
Y
0 V  
C
= 50 pF  
L
t
t
d(OD)  
d(OD)  
(see Note B)  
2.5 V  
90%  
50%  
10%  
90%  
Generator  
(see Note A)  
R
= 54 Ω  
Output  
L
50%  
10%  
Output  
50 Ω  
− 2.5 V  
Z
DE at 3 V  
t
t
t(OD)  
t(OD)  
VOLTAGE WAVEFORMS  
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR > 1 MHz, 50% duty cycle, t 6 ns, t 6 ns,  
TEST CIRCUIT  
r
f
Z
C
= 50 .  
O
L
B.  
includes probe and jig capacitance.  
Figure 3. Driver Test Circuit and Differential Output Delay and Transition Time Voltage Waveforms  
7
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
PARAMETER MEASUREMENT INFORMATION  
3 V  
0 V  
V
Y
S1  
1.5 V  
1.5 V  
D
Input  
Output  
0 V or 3 V  
Z
0.5 V  
t
PZH  
DE  
R
= 110 Ω  
C
= 50 pF  
L
OH  
L
Input  
Generator  
(see Note A)  
(see Note B)  
Output  
50 Ω  
2.3 V  
V
off  
0  
t
PHZ  
VOLTAGE WAVEFORMS  
TEST CIRCUIT  
Figure 4. Driver Test Circuit and Enable and Disable Time Waveforms  
5 V  
3 V  
0 V  
1.5 V  
1.5 V  
Input  
Y
Z
R
= 110 Ω  
L
S1  
D
Output  
0 V or 3 V  
t
PZL  
C
= 50 pF  
L
DE  
t
PLZ  
(see Note B)  
Input  
Generator  
(see Note A)  
5 V  
50 Ω  
0.5 V  
2.3 V  
Output  
V
OL  
TEST CIRCUIT  
VOLTAGE WAVEFORMS  
Figure 5. Driver Test Circuit and Enable and Disable Time Voltage Waveforms  
3 V  
0 V  
Input  
t
1.5 V  
1.5 V  
Input  
A
B
R
Generator  
(see Note A)  
t
Output  
PLH  
PHL  
50 Ω  
V
V
RE  
1.5 V  
OH  
90%  
1.3 V  
10%  
90%  
C
= 15 pF  
(see Note B)  
L
1.3 V  
10%  
Output  
0 V  
OL  
t
t
t
t
TEST CIRCUIT  
VOLTAGE WAVEFORMS  
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR 1 MHz, 50% duty cycle, t 6 ns, t 6 ns,  
r
f
Z
C
= 50 .  
O
L
B.  
includes probe and jig capacitance.  
Figure 6. Receiver Test Circuit and Propagation Delay Time Voltage Waveforms  
8
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ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈꢉ ꢊꢋ ꢇ  
ꢄꢌ ꢍꢊꢎ ꢌꢍ ꢏꢐ ꢑꢒ ꢓꢓ ꢏꢐ ꢏꢁꢔ ꢒꢕ ꢄ ꢄ ꢒꢁꢏ ꢑꢐꢒ ꢖꢏ ꢐ ꢕꢁꢑ ꢐꢏꢆ ꢏꢒꢖ ꢏ ꢐ ꢎꢕ ꢒꢐ  
SGLS251A − JULY 2004 − REVISED JUNE 2008  
PARAMETER MEASUREMENT INFORMATION  
Output  
S1  
1.5 V  
A
S2  
R
2 kΩ  
− 1.5 V  
5 V  
B
IN916 or Equivalent  
(4 places)  
RE  
C = 15 pF  
L
(see Note B)  
5 kΩ  
Input  
Generator  
(see Note A)  
50 Ω  
S3  
TEST CIRCUIT  
3 V  
0 V  
S1 to − 1.5 V  
S2 Closed  
S3 Open  
3 V  
S1 to 1.5 V  
S2 Open  
S3 Closed  
Input  
Input  
1.5 V  
1.5 V  
0 V  
t
PZH  
t
PZL  
V
OH  
4.5 V  
Output  
Output  
1.5 V  
0 V  
1.5 V  
V
OL  
3 V  
3 V  
0 V  
S1 to − 1.5 V  
S2 Closed  
S3 Closed  
S1 to 1.5 V  
S2 Closed  
S3 Closed  
Input  
Input  
1.5 V  
1.5 V  
0 V  
t
PHZ  
t
PLZ  
V
OH  
1.3 V  
Output  
Output  
0.5 V  
1.3 V  
V
OL  
0.5 V  
VOLTAGE WAVEFORMS  
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR 1 MHz, 50% duty cycle, t 6 ns, t 6 ns,  
r
f
Z
C
= 50 .  
O
L
B.  
includes probe and jig capacitance.  
Figure 7. Receiver Output Enable and Disable Times  
9
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
ꢀ ꢁꢂ ꢃꢄ ꢅ ꢆ ꢇꢈ ꢉꢊꢋ ꢇ  
ꢄ ꢌꢍꢊꢎ ꢌꢍꢏꢐ ꢑꢒ ꢓ ꢓꢏ ꢐꢏ ꢁꢔ ꢒ ꢕꢄ ꢄꢒ ꢁ ꢏ ꢑꢐ ꢒ ꢖꢏ ꢐ ꢕꢁꢑ ꢐꢏꢆ ꢏꢒꢖ ꢏꢐ ꢎꢕꢒ ꢐ  
SGLS251A − JULY 2004 − REVISED JUNE 2008  
TYPICAL CHARACTERISTICS  
DRIVER  
DRIVER  
HIGH-LEVEL OUTPUT VOLTAGE  
vs  
LOW-LEVEL OUTPUT VOLTAGE  
vs  
HIGH-LEVEL OUTPUT CURRENT  
LOW-LEVEL OUTPUT CURRENT  
5
4.5  
4
5
4.5  
4
V
T
= 5 V  
= 25°C  
V
T
= 5 V  
= 25°C  
CC  
A
CC  
A
3.5  
3.5  
3
3
2.5  
2.5  
2
2
1.5  
1.5  
1
1
0.5  
0
0.5  
0
0
10 20 30 40 50 60 70 80 90 100  
0
20  
40  
60  
80  
100  
120  
I
− High-Level Output Current − mA  
I
− Low-Level Output Current − mA  
OH  
OL  
Figure 8  
Figure 9  
DRIVER  
DRIVER  
DIFFERENTIAL OUTPUT VOLTAGE  
DIFFERENTIAL OUTPUT VOLTAGE  
vs  
vs  
OUTPUT CURRENT  
FREE-AIR TEMPERATURE  
4
3
V
T
A
= 5 V  
= 25°C  
CC  
V
= 5 V  
CC  
3.5  
3
Load = 54 Ω  
V
IH  
= 2 V  
2.5  
2
1.5  
1
2.5  
2
1.5  
1
0.5  
0
0.5  
0
0
10 20 30 40 50 60 70 80 90 100  
− 50  
− 25  
0
25  
50  
75  
100  
125  
I
O
− Output Current − mA  
T
A
− Free-Air Temperature − °C  
Figure 10  
Figure 11  
10  
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
TYPICAL CHARACTERISTICS  
DRIVER  
DRIVER  
OUTPUT CURRENT  
vs  
DIFFERENTIAL DELAY TIMES  
vs  
FREE-AIR TEMPERATURE  
SUPPLY VOLTAGE  
80  
60  
20  
15  
10  
R = 54 Ω  
L
V
= 5 V  
CC  
Load = 54 Ω  
t
d(ODL)  
I
OL  
40  
20  
t
d(ODH)  
0
20  
40  
60  
80  
5
0
I
OH  
− 50  
− 25  
0
25  
50  
75  
100  
125  
0
1
2
3
4
5
6
T
A
− Free-Air Temperature − °C  
V
CC  
− Supply Voltage − V  
Figure 12  
Figure 13  
RECEIVER  
RECEIVER  
HIGH-LEVEL OUTPUT VOLTAGE  
vs  
HIGH-LEVEL OUTPUT CURRENT  
LOW-LEVEL OUTPUT VOLTAGE  
vs  
LOW-LEVEL OUTPUT CURRENT  
6
5
4
1
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
V
ID  
= 200 mV  
V
= 5 V  
= 25°C  
= − 200 mV  
CC  
T
A
V
ID  
3
2
1
0
0
5
10  
15  
20  
25  
30  
35  
40  
0
−10  
− 20  
− 30  
− 40  
− 50  
I
− Low-Level Output Current − mA  
OL  
I
− High-Level Output Current − mA  
OH  
Figure 14  
Figure 15  
11  
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
TYPICAL CHARACTERISTICS  
RECEIVER  
AVERAGE SUPPLY CURRENT  
OUTPUT VOLTAGE  
vs  
DIFFERENTIAL INPUT VOLTAGE  
vs  
FREQUENCY  
60  
55  
50  
45  
40  
35  
30  
25  
6
5
T
V
= 25°C  
A
= 5 V  
CC  
DRVR and RCVR Enabled  
Driver Load = Receiver Inputs  
Receiver Load = 50 pF  
V
= 12 V  
IC  
4
3
2
V
IC  
= 0 V  
20  
15  
10  
5
V
= −7 V  
IC  
1
0
0
10 k  
− 80 − 60 − 40 − 20  
0
20  
40  
60  
80  
100 k  
1 M  
10 M  
100 M  
f − Frequency − Hz  
V
ID  
− Differential Input Voltage − mV  
Figure 16  
Figure 17  
RECEIVER  
BUS INPUT CURRENT  
vs  
RECEIVER  
PROPAGATION DELAY TIME  
vs  
INPUT VOLTAGE  
FREE-AIR TEMPERATURE  
(COMPLEMENTARY INPUT AT 0 V)  
1
0.8  
24.5  
24  
T
V
= 25°C  
V
C
= 5 V  
= 15 pF  
= 1.5 V  
A
CC  
L
= 5 V  
CC  
V
IO  
0.6  
0.4  
t
PHL  
0.2  
23.5  
23  
0
− 0.2  
− 0.4  
− 0.6  
− 0.8  
− 1  
t
PLH  
22.5  
22  
The shaded region of this graph represents  
more than 1 unit load per RS-485.  
− 40 − 20  
0
20  
40  
60  
80  
100  
− 8 − 6 − 4 − 2  
0
2
4
6
8
10 12  
T
A
− Free-Air Temperature − °C  
V − Input Voltage − V  
I
Figure 18  
Figure 19  
12  
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SGLS251A − JULY 2004 − REVISED JUNE 2008  
APPLICATION INFORMATION  
SN65LBC180  
SN65LBC180  
R
R
T
T
Up to 32  
Unit Loads  
• • •  
NOTE A: The line should be terminated at both ends in its characteristic impedance (R = Z ). Stub lengths off the main line should be kept  
T
O
as short as possible. One SN65LBC180 typically represents less than one unit load.  
Figure 20. Typical Application Circuit  
13  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
PACKAGE OPTION ADDENDUM  
www.ti.com  
27-Apr-2012  
PACKAGING INFORMATION  
Status (1)  
Eco Plan (2)  
MSL Peak Temp (3)  
Samples  
Orderable Device  
Package Type Package  
Drawing  
Pins  
Package Qty  
Lead/  
Ball Finish  
(Requires Login)  
SN65LBC180IDRG4Q1  
SN65LBC180IDRQ1  
ACTIVE  
ACTIVE  
SOIC  
SOIC  
D
D
14  
14  
2500  
2500  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU Level-1-260C-UNLIM  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
OTHER QUALIFIED VERSIONS OF SN65LBC180-Q1 :  
Catalog: SN65LBC180  
NOTE: Qualified Version Definitions:  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
27-Apr-2012  
Catalog - TI's standard catalog product  
Addendum-Page 2  
IMPORTANT NOTICE  
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