SN65LBC172 [TI]
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER; 翻两番低功耗差动线路驱动器
| 型号： | SN65LBC172 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER |
| 文件： | 总11页 (文件大小：160K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
N PACKAGE
(TOP VIEW)
Meet or Exceed EIA Standard RS-485
Designed for High-Speed Multipoint
Transmission on Long Bus Lines in Noisy
Environments
V
1A
1Y
1
2
3
4
5
6
7
8
16
15
14
CC
4A
4Y
Support Data Rates up to and Exceeding
Ten Million Transfers Per Second
1Z
13 4Z
G
Common-Mode Output Voltage Range of
–7 V to 12 V
12
11
10
9
G
2Z
3Z
3Y
3A
2Y
Positive- and Negative-Current Limiting
2A
GND
Low Power Consumption . . . 1.5 mA Max
(Output Disabled)
Functionally Interchangeable With SN75172
DW PACKAGE
(TOP VIEW)
description
1A
1Y
V
CC
4A
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
The SN65LBC172 and SN75LBC172 are
monolithic quadruple differential line drivers with
3-state outputs. Both devices are designed to
meet the requirements of EIA Standard RS-485.
These devices are optimized for balanced
multipointbustransmissionatdataratesuptoand
exceeding 10 million bits per second. Each driver
features wide positive and negative common-
mode output voltage ranges, current limiting, and
thermal-shutdown circuitry making it suitable for
party-line applications in noisy environments.
Both devices are designed using LinBiCMOS ,
facilitating ultra-low power consumption and
inherent robustness.
NC
1Z
4Y
NC
4Z
G
G
2Z
NC
2Y
3Z
NC
3Y
3A
2A
GND
NC – No internal connection
FUNCTION TABLE
(each driver)
INPUT
ENABLES
OUTPUTS
BoththeSN65LBC172andSN75LBC172provide
positive- and negative-current limiting and
thermal shutdown for protection from line fault
conditions on the transmission bus line. These
devices offer optimum performance when
used with the SN75LBC173 or SN75LBC175
quadruple line receivers. The SN65LBC172 and
SN75LBC172 are available in the 16-pin DIP
package (N) and the 20-pin wide-body small-
outline inline-circuit (SOIC) package (DW).
A
G
G
Y
Z
H
L
H
L
X
H
H
X
X
L
X
X
L
L
H
H
L
H
L
H
L
L
Z
H
Z
H = high level, L = low level,
X = irrelevant, Z = high impedance (off)
The SN75LBC172 is characterized for operation
over the commercial temperature range of 0°C to
70°C. The SN65LBC172 is characterized over the
industrial temperature range of –40°C to 85°C.
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
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
†
logic symbol
logic diagram (positive logic)
4
G
G
≥1
12
4
G
EN
12
G
2
3
1Y
1Z
1
1A
2A
3A
4A
2
3
1Y
1Z
2Y
2Z
3Y
3Z
4Y
4Z
1
1A
6
5
6
2Y
2Z
7
7
2A
5
10
11
14
13
9
10
11
3A
3Y
3Z
9
15
4A
14
13
4Y
4Z
15
†
ThissymbolisinaccordancewithANSI/IEEEStd91-1984
and IEC Publication 617-12.
Pin numbers shown are for the N package.
schematic diagrams of inputs and outputs
ALL INPUTS
Y OR Z OUTPUT
V
CC
V
CC
50 µA
200 Ω
Output
Input
Driver
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
†
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, V
Output voltage range, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10 V to 15 V
CC
O
Voltage range at A, G, G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V
Continuous power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
+ 0.5 V
CC
‡
Operating free-air temperature range, T : SN65LBC172 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
A
SN75LBC172 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
The maximum operating junction temperature is internally limited. Use the dissipation rating table to operate below this temperature.
NOTE 1: All voltage values are with respect to GND.
recommended operating conditions
MIN NOM
MAX
UNIT
Supply voltage, V
CC
4.75
2
5
5.25
V
V
V
High-level input voltage, V
IH
Low-level input voltage, V
0.8
12
IL
Voltage at any bus terminal (separately or common mode), V
Y or Z
V
O
–7
High-level output current, I
Y or Z
Y or Z
–60
60
mA
mA
OH
Low-level output current, I
OL
Continuous total power dissipation
See Dissipation Rating Table
SN65LBC172
SN75LBC172
–40
0
85
70
Operating free-air temperature, T
°C
A
DISSIPATION RATING TABLE
DERATING FACTOR
T
≤ 25°C
T
A
= 70°C
T = 85°C
A
A
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING POWER RATING
A
DW
N
1125 mW
9.0 mW/°C
9.2 mW/°C
720 mW
736 mW
585 mW
598 mW
1150 mW
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
†
PARAMETER
Input clamp voltage
TEST CONDITIONS
MIN TYP
MAX
–1.5
5
UNIT
V
IK
I = –18 mA
V
I
SN65LBC172
SN75LBC172
SN65LBC172
SN75LBC172
1.1
1.5
1.1
1.5
1.8
1.8
1.7
1.7
R
= 54 Ω,
See Figure 1
L
5
‡
|V
|
V
Differential output voltage
OD
5
R
= 60 Ω,
See Figure 2
L
5
§
§
∆|V
|
|
±0.2
V
V
Change in magnitude of common-mode output voltage
OD
3
– 1
V
OC
R
= 54 Ω,
See Figure 1
Common-mode output voltage
L
∆|V
±0.2
±100
±100
–100
–100
±250
7
V
Change in magnitude of common-mode output voltage
Output current with power off
OC
I
I
I
I
I
V
V
= 0,
V = – 7 V to 12 V
O
µA
µA
µA
µA
mA
O
CC
High-impedance-state output current
High-level input current
= – 7 V to 12 V
O
OZ
IH
V = 2.4 V
I
Low-level input current
V = 0.4 V
I
IL
Short-circuit output current
V
O
= –7 V to 12 V
OS
Outputs enabled
Outputs disabled
I
Supply current (all drivers)
No load
mA
CC
1.5
†
‡
All typical values are at V
= 5 V and T = 25°C.
A
CC
specificationdoesnotfullycomplywithEIA-485atoperatingtemperaturesbelow0°C. Theloweroutputsignalshouldbeused
TheminimumV
OD
to determine the maximum signal-transmission distance.
∆|V | and ∆|V | are the changes in magnitude of V
§
and V , respectively, that occur when the input changes from a high level to a low
OC
OD
level.
OC
OD
switching characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
MIN
2
TYP
11
MAX
20
UNIT
ns
t
t
t
t
t
t
Differential output delay time
d(OD)
t(OD)
PZH
PZL
R
= 54 Ω,
See Figure 3
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
10
15
25
ns
R
R
R
R
= 110 Ω,
= 110 Ω,
= 110 Ω,
= 110 Ω,
See Figure 4
See Figure 5
See Figure 4
See Figure 5
30
ns
L
L
L
L
30
ns
50
ns
PHZ
PLZ
30
ns
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
PARAMETER MEASUREMENT INFORMATION
R
L
2
V
OD2
R
L
V
OC
2
Figure 1. Differential and Common-Mode Output Voltages
V
test
R1 = 375 Ω
Y
Z
A
R
= 60 Ω
0 V or 3 V
L
V
OD
G at 5 V
or
R2 = 375 Ω
G at 0 V
–7 V < V
< 12 V
test
V
test
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, t ≤ 5 ns,
r
t ≤ 5 ns, Z = 50 Ω.
f
O
B.
C
includes probe and stray capacitance.
L
Figure 2. Driver V
Test Circuit
OD
3 V
Input
1.5 V
1.5 V
Input
50 Ω
0 V
R
= 54 Ω
L
Output
C
= 50 pF
L
Generator
(see Note A)
t
t
d(OD)
d(OD)
(see Note B)
≈ 2.5 V
90%
10%
50%
t(OD)
VOLTAGE WAVEFORMS
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, t ≤ 5 ns,
50%
Output
≈ – 2.5 V
3 V
t
t
t(OD)
TEST CIRCUIT
r
t ≤ 5 ns, Z = 50 Ω.
f
C
O
B.
includes probe and stray capacitance.
L
Figure 3. Driver Differential-Output Test Circuit and Delay and Transition-Time Waveforms
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
PARAMETER MEASUREMENT INFORMATION
3 V
0 V
Input
1.5 V
S1
1.5 V
Output
0 V or 3 V
Input
0.5 V
t
PZH
R
= 110 Ω
L
Generator
(see Note A)
V
OH
C
= 50 pF
L
50 Ω
(see Note B)
Output
2.3 V
V
off
≈ 0 V
t
PHZ
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, t ≤ 5 ns,
r
t ≤ 5 ns, Z = 50 Ω.
f
O
B.
C
includes probe and stray capacitance.
L
Figure 4. t
and t
Test Circuit and Voltage Waveforms
PZH
PHZ
5 V
R
= 110 Ω
L
3 V
0 V
S1
Input
Output
1.5 V
1.5 V
0 V or 3 V
t
PZL
C
= 50 pF
Input
L
Generator
(see Note A)
t
PLZ
5 V
0.5 V
(see Note B)
50 Ω
2.3 V
Output
V
OL
3 V
(see Note C)
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, t ≤ 5 ns,
r
t ≤ 5 ns, Z = 50 Ω.
f
O
B.
C
includes probe and stray capacitance.
L
C. To test the active-low enable G, ground G and apply an inverted waveform to G.
Figure 5. t
and t
Test Circuit and Waveforms
PZL
PLZ
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
TYPICAL CHARACTERISTICS
OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
vs
OUTPUT VOLTAGE
LOW-LEVEL OUTPUT CURRENT
50
40
5
Output Disabled
= 25°C
V
T
= 5 V
= 25°C
CC
A
4.5
4
T
A
30
20
3.5
3
10
0
2.5
2
–10
–20
–30
–40
–50
V
= 0 V
CC
1.5
1
V
= 5 V
CC
0.5
0
–25 –20 –15 –10 –5
0
5
10 15 20 25
–20
0
20
40
60
80
100 120
V
O
– Output Voltage – V
I
– Low-Level Output Current – mA
OL
Figure 6
Figure 7
DIFFERENTIAL OUTPUT VOLTAGE
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
vs
FREE-AIR TEMPERATURE
3
2.5
2
5
R
= 54 Ω
= 5 V
L
V
T
A
= 5 V
= 25°C
CC
V
CC
4.5
4
3.5
3
1.5
1
2.5
2
0.5
0
1.5
–60 –40 –20
0
20
40
60
80 100
20
0
–20
–40 –60
–80
–100 –120
T
A
– Free-Air Temperature – °C
I
– High-Level Output Current – mA
OH
Figure 8
Figure 9
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
TYPICAL CHARACTERISTICS
PROPAGATION DELAY TIME,
DIFFERENTIAL OUTPUT
vs
DIFFERENTIAL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
3
2.5
2
14
V
T
A
= 5 V
CC
= 25°C
R
C
V
= 54 Ω
L
L
= 50 pF
= 5 V
13
12
CC
11
10
9
1.5
1
8
7
6
0.5
0
5
4
0
10 20 30 40 50 60 70 80 90 100
–60 –40 –20
0
20
40
60
80 100
I
O
– Output Current – mA
T
A
– Free-Air Temperature – °C
Figure 10
Figure 11
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
MECHANICAL DATA
DW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
16 PIN SHOWN
0.050 (1,27)
16
0.020 (0,51)
0.010 (0,25)
M
0.014 (0,35)
9
0.419 (10,65)
0.400 (10,15)
0.010 (0,25) NOM
0.299 (7,59)
0.293 (7,45)
Gage Plane
0.010 (0,25)
1
8
0°–8°
0.050 (1,27)
0.016 (0,40)
A
Seating Plane
0.004 (0,10)
0.012 (0,30)
0.004 (0,10)
0.104 (2,65) MAX
PINS **
16
20
24
0.610
DIM
0.410
0.510
A MAX
(10,41) (12,95) (15,49)
0.400
0.500
0.600
A MIN
(10,16) (12,70) (15,24)
4040000/D 02/98
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-013
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC172, SN75LBC172
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SLLS163B – JULY 1993 – REVISED JANUARY 2000
MECHANICAL DATA
N (R-PDIP-T**)
PLASTIC DUAL-IN-LINE PACKAGE
16 PIN SHOWN
PINS **
14
16
18
20
DIM
0.775
(19,69)
0.775
(19,69)
0.920
(23.37)
0.975
(24,77)
A MAX
A
16
9
0.745
(18,92)
0.745
(18,92)
0.850
(21.59)
0.940
(23,88)
A MIN
0.260 (6,60)
0.240 (6,10)
1
8
0.070 (1,78) MAX
0.020 (0,51) MIN
0.310 (7,87)
0.290 (7,37)
0.035 (0,89) MAX
0.200 (5,08) MAX
Seating Plane
0.125 (3,18) MIN
0.100 (2,54)
0°–15°
0.021 (0,53)
0.015 (0,38)
0.010 (0,25)
M
0.010 (0,25) NOM
14/18 PIN ONLY
4040049/C 08/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-001 (20 pin package is shorter then MS-001.)
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
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
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 2000, Texas Instruments Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明