SN65LBC179QDREP [TI]
LINE TRANSCEIVER, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8;
| 型号： | SN65LBC179QDREP |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | LINE TRANSCEIVER, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8 驱动器 |
| 文件： | 总12页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
D OR P PACKAGE
(TOP VIEW)
Designed for High-Speed Multipoint Data
Transmission Over Long Cables
Operate With Pulse Widths as Low
as 30 ns
V
A
B
Z
Y
1
2
3
4
8
7
6
5
CC
R
Low Supply Current . . . 5 mA Max
D
Meets or Exceeds the Standard
Requirements of ANSI RS-485 and
ISO 8482:1987(E)
GND
Function Tables
Common-Mode Voltage Range of –7 V
to 12 V
DRIVER
INPUT
D
OUTPUTS
Positive- and Negative-Output Current
Limiting
Y
Z
H
L
H
L
L
H
Driver Thermal Shutdown Protection
Pin Compatible With the SN75179B
RECEIVER
DIFFERENTIAL INPUTS OUTPUT
description
A–B
≥ 0.2 V
R
H
?
L
H
The SN65LBC179, SN65LBC179Q,
and
V
ID
–0.2 V < V < 0.2 V
SN75LBC179differential driver and receiver pairs
are monolithic integrated circuits designed for
bidirectional data communication over long
cables that take on the characteristics of
transmission lines. They are balanced, or
differential, voltage mode devices that meet or
exceed the requirements of industry standards
ANSI RS-485 and ISO 8482:1987(E). Both
devices are designed using TI’s proprietary
LinBiCMOS with the low power consumption of
CMOS and the precision and robustness of
bipolar transistors in the same circuit.
ID
≤ – 0.2 V
V
ID
Open circuit
H = high level,
? = indeterminate
L = low level,
†
logic symbol
8
7
2
3
A
B
R
D
6
5
Z
Y
The SN65LBC179, SN65LBC179Q,
and
SN75LBC179 combine a differential line driver
and differential line receiver and operate from a
single 5-V supply. 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
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
8
2
A
B
bus when powered off (V
= 0). These parts
CC
R
D
7
feature a wide common-mode voltage range
making them suitable for point-to-point or
multipoint data bus applications. The devices also
provide positive- and negative-current limiting
andthermalshutdownforprotectionfromlinefault
conditions. Thelinedrivershutsdownatajunction
temperature of approximately 172°C.
5
6
3
Y
Z
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.
Copyright 2000, Texas Instruments Incorporated
PRODUCTION DATA information is 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
description (continued)
The SN65LBC179, SN65LBC179Q, and SN75LBC179 are available in the 8-pin dual-in-line and small-outline
packages. The SN75LBC179 is characterized for operation over the commercial temperature range of 0°C to
70°C. The SN65LBC179 is characterized over the industrial temperature range of –40°C to 85°C. The
SN65LBC179Q is characterized over the extended industrial or automotive temperature range of –40°C to
125°C.
schematics of inputs and outputs
EQUIVALENT OF DRIVER INPUT
RECEIVER A INPUT
RECEIVER B INPUT
V
CC
V
CC
V
CC
100 kΩ
NOM
22 kΩ
3 kΩ
NOM
3 kΩ
NOM
18 kΩ
18 kΩ
NOM
NOM
Input
Input
Input
12 kΩ
12 kΩ
100 kΩ
NOM
1.1 kΩ
NOM
1.1 kΩ
NOM
DRIVER OUTPUT
TYPICAL OF RECEIVER OUTPUT
V
V
CC
CC
R Output
Output
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
CC
Voltage range at A, B, Y, or Z (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10 V to 15 V
Voltage range at D or R (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 : SN65LBC179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
A
SN65LBC179Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 125°C
SN75LBC179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, T
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
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. Uses 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
P
725 mW
5.8 mW/°C
8.8 mW/°C
464 mW
704 mW
377 mW
572 mW
1100 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
D
Low-level input voltage, V
0.8
6
IL
Differential input voltage, V
‡
–6
ID
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
High-level output current, I
mA
mA
OH
R
Y or Z
Low-level output current, I
OL
R
SN65LBC179
SN65LBC179Q
SN75LBC179
–40
–40
0
85
125
70
Operating free-air temperature, T
°C
A
‡
The algebraic convention, in which the least positive (most negative) limit is designated as minimum, is used in this data sheet for differential
input voltage, voltage at any bus terminal (separately or common mode), operating temperature, input threshold voltage, and common-mode
output voltage.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
DRIVER SECTION
electrical characteristics over recommended operating conditions (unless otherwise noted)
†
PARAMETER
Input clamp voltage
TEST CONDITIONS
MIN TYP
MAX
UNIT
V
IK
I = –18 mA
–1.5
V
I
SN65LBC179,
SN65LBC179Q
1.1
1.5
1.1
1.5
2.2
2.2
2.2
2.2
5
5
R
= 54 Ω,
L
See Figure 1
SN75LBC179
|V
OD
|
Differential output voltage (see Note 3)
V
SN65LBC179,
SN65LBC179Q
5
R
= 60 Ω,
L
See Figure 2
SN75LBC179
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 Ω,
See Figure 1
Change in magnitude of common-mode output
voltage (see Note 4)
L
∆|V
±0.2
OC
I
I
I
I
Output current with power off
High-level input current
Low-level input current
V
= 0,
V = –7 V to 12 V
O
±100
–100
–100
±250
µA
µA
µA
mA
O
CC
V = 2.4 V
I
IH
IL
V = 0.4 V
I
Short-circuit output current
–7 V ≤ V ≤ 12 V
OS
O
SN65LBC179,
SN75LBC179
4.2
4.2
5
7
mA
mA
I
Supply current
No load
CC
SN65LBC179Q
†
All typical values are at V
= 5 V and T = 25°C.
A
OD
CC
NOTES: 3. The minimum V
specification of the SN65179 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
OD
and V
, respectively, that occur when the input is
OC
changed from a high level to a low level.
switching characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
= 54 Ω, See Figure 3
MIN
7
MAX
18
UNIT
ns
t
t
Differential-output delay time
Differential transition time
d(OD)
R
L
5
20
ns
t(OD)
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
RECEIVER SECTION
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
–0.2
3.5
TYP
MAX
UNIT
V
V
IT+
V
IT–
V
hys
V
OH
V
OL
Positive-going input threshold voltage
Negative-going input threshold voltage
I
I
= –8 mA
= 8 mA
0.2
O
V
O
Hysteresis voltage (V
IT+
– V
)
45
4.5
0.3
mV
V
IT–
High-level output voltage
Low-level output voltage
V
V
= 200 mV,
I
I
= –8 mA
= 16 mA
ID
OH
= –200 mV,
0.5
1
V
ID
OL
SN65LBC179,
V = 12 V,
I
0.7
0.7
mA
mA
mA
mA
mA
mA
mA
mA
SN75LBC179
Other inputs at 0 V,
V
= 5 V
CC
SN65LBC179Q
1.2
SN65LBC179,
SN75LBC179
V = 12 V,
I
0.8
1
Other inputs at 0 V,
V
= 0 V
CC
SN65LBC179Q
0.8
1.2
–0.8
–1.0
–0.8
–1.0
I
I
Bus input current
SN65LBC179,
SN75LBC179
V = –7 V,
I
–0.5
–0.5
–0.5
–0.5
Other inputs at 0 V,
V
= 5 V
CC
SN65LBC179Q
SN65LBC179,
SN75LBC179
V = –7 V,
I
Other inputs at 0 V,
V
= 0 V
CC
SN65LBC179Q
switching characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
MIN
15
TYP
MAX
30
30
6
UNIT
ns
t
t
t
t
Propagation delay time, high- to low-level output
Propagation delay time, low- to high-level output
PHL
PLH
sk(p)
t
V
ID
= –1.5 V to 1.5 V, See Figure 4
15
ns
Pulse skew (
t
– t
)
3
3
ns
PHL PLH
See Figure 4
Transition time
5
ns
PARAMETER MEASUREMENT INFORMATION
Y
R
2
L
D
V
OD
0 V or 3 V
R
2
L
V
OC
Z
Figure 1. Differential and Common-Mode Output Voltage Test Circuit
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
PARAMETER MEASUREMENT INFORMATION
V
test
R1
375 Ω
Y
Z
D
R
= 60 Ω
V
OD
L
0 V or 3 V
R2
375 Ω
–7 V < V
< 12 V
test
V
test
Figure 2. Differential Output Voltage Test Circuit
3 V
Input
1.5 V
1.5 V
0 V
t
t
d(ODH)
d(ODL)
C
= 50 pF
Output
L
≈ 2.5 V
≈ – 2.5 V
t(OD)
(see Note B)
R
= 54 Ω
Generator
(see Note A)
L
50%
50%
Output
50 Ω
t
t
t(OD)
VOLTAGE WAVEFORMS
TEST CIRCUIT
Figure 3. Driver Test Circuits and Differential Output Delay and Transition Time Voltage Waveforms
3 V
Input
1.5 V
1.5 V
A
B
0 V
Generator
(see Note A)
Output
t
t
PHL
50 Ω
PLH
1.5 V
V
OH
C
= 15 pF
90%
1.3 V
10%
90%
L
(see Note B)
1.3 V
10%
Output
V
OL
t
t
t
t
TEST CIRCUIT
VOLTAGE WAVEFORMS
Figure 4. Receiver Test Circuit and Propagation Delay and Transition Time 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 Ω.
O
L
B.
includes probe and jig capacitance.
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
TYPICAL CHARACTERISTICS
DRIVER
DRIVER
LOW-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
5
4.5
4
5
4.5
4
V
T
= 5 V
V
T
= 5 V
= 25°C
CC
CC
= 25°C
A
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 5
Figure 6
DRIVER
DRIVER
DIFFERENTIAL OUTPUT VOLTAGE
DIFFERENTIAL OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
4
3
2.5
2
V
T
A
= 5 V
V
= 5 V
CC
= 25°C
CC
Load = 54 Ω
= 2 V
3.5
V
IH
3
2.5
2
1.5
1
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 7
Figure 8
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
TYPICAL CHARACTERISTICS
DRIVER
RECEIVER
DIFFERENTIAL DELAY TIME
vs
HIGH-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
HIGH-LEVEL OUTPUT CURRENT
6
5
4
20
15
10
V
ID
= 200 mV
V
= 5 V
CC
Load = 54 Ω
t
d(ODL)
t
d(ODH)
3
2
5
0
1
0
– 50
– 25
0
25
50
75
100
125
0
–10
– 20
– 30
– 40
– 50
I
– High-Level Output Current – mA
T
A
– Free-Air Temperature – °C
OH
Figure 9
Figure 10
RECEIVER
RECEIVER
OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
DIFFERENTIAL INPUT VOLTAGE
1
6
V
= 5 V
= 25°C
= – 200 mV
CC
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
T
A
V
ID
5
V
IC
= 12 V
4
3
2
V
IC
= 0 V
V
IC
= –7 V
1
0
0
5
10
15
20
25
30
35
40
– 80 – 60 – 40 – 20
0
20
40
60
80
I
– Low-Level Output Current – mA
OL
V
ID
– Differential Input Voltage – mV
Figure 11
Figure 12
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
TYPICAL CHARACTERISTICS
RECEIVER
INPUT CURRENT
AVERAGE SUPPLY CURRENT
vs
vs
INPUT VOLTAGE
(COMPLEMENTARY INPUT AT 0 V)
FREQUENCY
60
55
50
45
40
35
30
25
1
0.8
Receiver Load = 50 pF
Driver Load = Receiver Inputs
T
V
= 25°C
A
= 5 V
CC
0.6
0.4
0.2
0
– 0.2
– 0.4
– 0.6
– 0.8
– 1
20
15
10
5
The shaded region of this graph represents
more than 1 unit load per RS-485.
0
10 K
100 K
1 M
10 M
100 M
– 8 – 6 – 4 – 2
0
2
4
6
8
10 12
V – Input Voltage – V
I
f – Frequency – Hz
Figure 13
Figure 14
RECEIVER
PROPAGATION DELAY TIME
vs
FREE-AIR TEMPERATURE
24.5
24
V
C
= 5 V
= 15 pF
= ±1.5 V
CC
L
V
IO
t
PHL
23.5
23
t
PLH
22.5
22
– 40
– 20
0
20
40
60
80
100
T
A
– Free-Air Temperature – °C
Figure 15
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
MECHANICAL INFORMATION
D (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PIN SHOWN
PINS **
0.050 (1,27)
8
14
16
DIM
0.020 (0,51)
0.014 (0,35)
0.010 (0,25)
0.197
(5,00)
0.344
(8,75)
0.394
(10,00)
M
A MAX
14
8
0.189
(4,80)
0.337
(8,55)
0.386
(9,80)
A MIN
0.244 (6,20)
0.228 (5,80)
0.008 (0,20) NOM
0.157 (4,00)
0.150 (3,81)
Gage Plane
1
7
A
0.010 (0,25)
0°–8°
0.044 (1,12)
0.016 (0,40)
Seating Plane
0.004 (0,10)
0.010 (0,25)
0.004 (0,10)
0.069 (1,75) MAX
4040047/D 10/96
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
D. Falls within JEDEC MS-012
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75LBC179, SN65LBC179, SN65LBC179Q
LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS
SLLS173C – JANUARY 1994 – REVISED JANUARY 2000
MECHANICAL INFORMATION
PLASTIC DUAL-IN-LINE
P (R-PDIP-T8)
0.400 (10,60)
0.355 (9,02)
8
5
0.260 (6,60)
0.240 (6,10)
1
4
0.070 (1,78) MAX
0.325 (8,26)
0.300 (7,62)
0.020 (0,51) MIN
0.015 (0,38)
Gage Plane
0.200 (5,08) MAX
Seating Plane
0.010 (0,25) NOM
0.125 (3,18) MIN
0.100 (2,54)
0.021 (0,53)
0.430 (10,92)
MAX
0.010 (0,25)
M
0.015 (0,38)
4040082/D 05/98
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-001
For the latest package information, go to http://www.ti.com/sc/docs/package/pkg_info.htm
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
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Copyright 2000, Texas Instruments Incorporated
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