SN75LBC174DWR [TI]
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS;
| 型号： | SN75LBC174DWR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS 驱动 |
| 文件： | 总11页 (文件大小：169K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
N PACKAGE
(TOP VIEW)
Meets or Exceeds the Standard EIA-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
Supports Data Rates up to and Exceeding
Ten Million Transfers Per Second
1Z
13 4Z
1,2EN
2Z
Common-Mode Output Voltage Range of
–7 V to 12 V
12 3,4EN
11
10
9
3Z
3Y
3A
2Y
Positive- and Negative-Current Limiting
2A
GND
Low Power Consumption . . . 1.5 mA Max
(Output Disabled)
DW PACKAGE
(TOP VIEW)
Functionally Interchangeable With SN75174
description
1A
1Y
V
CC
4A
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
The SN65LBC174 and SN75LBC174 are
monolithic, quadruple, differential line drivers with
3-state outputs. Both devices are designed to
meet the requirements of the Electronics Industry
Association Standard EIA-485. These devices
are optimized for balanced multipoint bus
transmission at data rates up to and exceeding
10 million bits per second. Each driver features
wide positive and negative common-mode output
voltage ranges, current limiting, and thermal-
shutdown protection, 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
4Y
NC
4Z
1Z
1,2EN
2Z
15 3,4EN
14
13
12
11
NC
3Z
NC
3Y
3A
2Y
2A
GND
NC – No internal connection
FUNCTION TABLE
(each driver)
OUTPUTS
INPUT
ENABLE
BoththeSN65LBC174andSN75LBC174provide
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 SN65LBC174 and
SN75LBC174 are available in the 16-terminal DIP
package (N) and the 20-terminal wide-body small
outline intergrated circuit (SOIC) package (DW).
Y
Z
H
L
X
H
H
L
H
L
Z
L
H
Z
H = high level, L = low level,
X = irrelevant, Z = high impedance (off)
The SN75LBC174 is characterized for operation over the commercial temperature range of 0°C to 70°C. The
SN65LBC174 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 1998, 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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
†
logic symbol
logic diagram (positive logic)
2
3
4
1Y
1Z
1
4
7
1,2EN
EN
1A
1,2EN
2A
2
3
6
5
1Y
1Z
2Y
2Z
1
1A
6
5
2Y
2Z
7
2A
10
11
12
3Y
3Z
9
3,4EN
EN
3A
3,4EN
4A
10
11
14
13
12
15
3Y
3Z
4Y
4Z
9
3A
14
13
4Y
4Z
15
4A
†
ThissymbolisinaccordancewithANSI/IEEEStd91-1984
and IEC Publication 617-12.
Terminal numbers shown are for the N package.
schematic 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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
†
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
Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
I
‡
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Operating free-air temperature range, T : SN65LBC174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
A
SN75LBC174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
4.75
2
5
5.25
V
V
V
CC
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
SN65LBC174
SN75LBC174
–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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
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
SN65LBC174
SN75LBC174
SN65LBC174
SN75LBC174
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 is changed from a high level to a low
OC
OD OC OD
level.
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 3
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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
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
L
0 V or 3 V
V
OD
R2 = 375 Ω
EN at 5 V
–7 V < V
< 12 V
test
V
test
Figure 2. Driver V
Test Circuit
OD
3 V
Input
1.5 V
1.5 V
Input
50 Ω
R
= 54 Ω
L
0 V
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)
50%
Output
≈ – 2.5 V
3 V
t
t
t(OD)
TEST CIRCUIT
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, t ≤ 5 ns,
VOLTAGE WAVEFORMS
r
t ≤ 5 ns, Z = 50 Ω.
f
O
B.
C
L
includes probe and stray capacitance.
Figure 3. Time Waveforms for Driver Differential Output Test Circuit Delay and Transition
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
PARAMETER MEASUREMENT INFORMATION
3 V
S1
Input
1.5 V
Output
1.5 V
3 V or 0 V
Input
0 V
V
R
= 110 Ω
0.5 V
L
C
= 50 pF
t
PZH
L
Generator
(see Note B)
OH
(see Note A)
50 Ω
Output
2.3 V
PHZ
V
off
≈ 0 V
t
TEST CIRCUIT
VOLTAGE WAVEFORMS
Figure 4. t
and t
Test Circuit and Waveforms
PZH
PHZ
5 V
3 V
0 V
Input
t
1.5 V
1.5 V
R
= 110 Ω
L
S1
Output
PZL
0 V or 3 V
Input
t
PLZ
5 V
0.5 V
C
= 50 pF
L
(see Note B)
2.3 V
Output
Generator
(see Note A)
V
OL
50 Ω
VOLTAGE WAVEFORMS
TEST CIRCUIT
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
L
includes probe and stray capacitance.
Figure 5. t
and t
Test Circuit and Waveforms
PZL
PLZ
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
TYPICAL CHARACTERISTICS
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
OUTPUT CURRENT
vs
OUTPUT VOLTAGE
5
50
40
V
T
= 5 V
= 25°C
Output Disabled
= 25°C
CC
A
4.5
4
T
A
30
3.5
3
20
10
2.5
2
0
–10
–20
–30
–40
–50
V
= 0 V
CC
1.5
1
V
= 5 V
CC
0.5
0
–20
0
20
40
60
80
100 120
–25 –20 –15 –10 –5
0
5
10 15 20 25
I
– Low-Level Output Current – mA
V
O
– Output Voltage – V
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
V
= 54 Ω
L
V
T
A
= 5 V
= 25°C
CC
= 5 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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
TYPICAL CHARACTERISTICS
PROPAGATION DELAY TIME,
DIFFERENTIAL OUTPUT
vs
DIFFERENTIAL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
14
3
2.5
2
R
C
= 54 Ω
= 50 pF
= 5 V
V
T
A
= 5 V
L
L
CC
= 25°C
13
12
V
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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
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
SN65LBC174, SN75LBC174
QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS
SLLS162A – JULY 1993 – REVISED NOVEMBER 1998
MECHANICAL DATA
N (R-PDIP-T**)
PLASTIC DUAL-IN-LINE PACKAGE
16 PIN SHOWN
PINS **
DIM
14
16
18
20
0.775
(19,69)
0.775
(19,69)
0.920
(23.37)
0.975
(24,77)
A MAX
A MIN
A
16
9
0.745
(18,92)
0.745
(18,92)
0.850
(21.59)
0.940
(23,88)
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 1998, Texas Instruments Incorporated
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