Texas Instruments SN75109ADR, SN75109AN Datasheet

SN55109A, SN55110A

SN75109A, SN75110A, SN75112

DUAL LINE DRIVERS

SLLS106B – DECEMBER 1975 – REVISED MAY 1995

Copyright  1995, Texas Instruments Incorporated

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

• Improved Stability Over Supply Voltage and

T emperature Ranges

• Constant-Current Outputs

• High Speed

• Standard Supply Voltages

• High Output Impedance

• High Common-Mode Output Voltage Range

–3 V to 10 V

• TTL-Input Compatibility

• Inhibitor Available for Driver Selection

• Glitch-Free During Power Up/Power Down

• SN75112 and External Circuit Meets or

Exceeds the Requirements of CCITT
Recommendation V.35

description

The SN55109A, SN55110A, SN75109A,
SN75110A, and SN75112 dual line drivers have
improved output current regulation with supply
voltage and temperature variations. In addition,
the higher current of the SN751 12 (27 mA) allows
data to be transmitted over longer lines. These
drivers offer optimum performance when used
with the SN55107A, SN55108A, SN75107A, and
SN75108A line receivers.

These drivers feature independent channels with
common voltage supply and ground terminals.
The significant difference between the three
drivers is in the output current specification. The driver circuits feature a constant output current that is switched
to either of two output terminals by the appropriate logic levels at the input terminals. The output current can
be switched off (inhibited) by low logic levels on the enable inputs. The output current is nominally 6 mA for the
’109A, 12 mA for the ’110A, and 27 mA for the SN75112.

The enable/inhibit feature is provided so the circuits can be used in party-line or data-bus applications. A strobe
or inhibitor (enable D), common to both drivers, is included for increased driver-logic versatility. The output
current in the inhibited mode, I

O(off)

, is specified so that minimum line loading is induced when the driver is used
in a party-line system with other drivers. The output impedance of the driver in the inhibited mode is very high.
The output impedance of a transistor is biased to cutoff.

AVAILABLE OPTIONS

PACKAGED DEVICES

CERAMIC

T

A

SMALL OUTLINE

(D)

CHIP CARRIER

(FK)

CERAMIC DIP

(J)

PLASTIC DIP

(N)

FLATPACK

(W)

SN75109AD SN75109AN

0°C to 70°C

SN75109AD

SN75110AD

SN75109AN

SN75110AN

SN75112D SN75112N

–55°C to 125°C

SN55109AFK

SN55109AJ

SN55109AJ

SN55109AW

55 C to 125 C

SN55110AFK

SN55110AJ

SN55110AJ

SN55110AW

The D package is available taped and reeled. Add the suffix R to the device type, (e.g., SN751 10ADR).

1
2
3
4
5
6
7

14
13
12

11

10

9
8

1A
1B
1C
2C
2A
2B

GND

V

CC+

1Y
1Z
V

CC –

D
2Z
2Y

SN55109A, SN55110A ...J OR W PACKAGE

SN75109A, SN75110A, SN751 12...D OR N PACKAGE

(TOP VIEW)

3 2 1 20 19

910111213

4
5
6
7
8

18
17
16
15
14

1Z
NC
V

CC –

NC
D

1C

NC

2C

NC

2A

SN55109A, SN55110A . . . FK PACKAGE

(TOP VIEW)

1B1ANC2Z1Y

2B

GND

NC

NC – No internal connection

CC+

V

2Y

THE SN75109A IS NOT

RECOMMENDED FOR NEW DESIGNS

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.

SN55109A, SN55110A
SN75109A, SN75110A, SN75112
DUAL LINE DRIVERS

SLLS106B – DECEMBER 1975 – REVISED MAY 1995

2–2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

description (continued)

The driver outputs have a common-mode voltage range of –3 V to 10 V, allowing common-mode voltage on
the line without affecting driver performance.

All inputs are diode clamped and are designed to satisfy TTL-system requirements. The inputs are tested at
2 V for high-logic-level input conditions and 0.8 V for low-logic-level input conditions. These tests ensure
400-mV noise margin when interfaced with TTL Series 54/74.

The SN55109A and SN551 10A are characterized for operation over the full military temperature range of – 55°C
to 125°C. The SN75109A, SN75110A, and SN75112 are characterized for operation from 0°C to 70°C.

FUNCTION TABLE

(each driver)

LOGIC

INPUTS

ENABLE

INPUTS

OUTPUTS

†

A B C D Y Z

X X L X Off Off
X XXLOffOff
L XHHOnOff
X LHHOnOff
H H H H Off On

H = high level, L = low level, X = irrelevant
†

When using only one channel of the line drivers, the other
channel should be inhibited and/or have its outputs
grounded.

SN55109A, SN55110A

SN75109A, SN75110A, SN75112

DUAL LINE DRIVERS

SLLS106B – DECEMBER 1975 – REVISED MAY 1995

2–3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

schematic (each driver)

+

–

–

+

–

–

+

–

14

To Other Driver

8, 13

Y
Z

9, 12

GND

7

B

A

1, 5

2, 6

+

–

... V

CC+

bus

... V

CC–

bus

To Other

Driver

C
D

2.2 kΩ
NOM

V

CC–

11

Common to Both Drivers

2.2 kΩ

NOM

V

CC+

3, 4
10

Pin numbers shown are for D, J, N, and W packages.

SN55109A, SN55110A
SN75109A, SN75110A, SN75112
DUAL LINE DRIVERS

SLLS106B – DECEMBER 1975 – REVISED MAY 1995

2–4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

SN55109A
SN55110A

SN75109A
SN75110A

SN75112 UNIT

Supply voltage, V

CC+

(see Note 1) 7 7 7 V

Supply voltage, V

CC–

–7 –7 –7 V
Input voltage, VI 5.5 5.5 5.5 V
Output voltage range, V

O

–5 to 12 –5 to 12 –5 to 12 V
Continuous total power dissipation (see Note 2) See Dissipation Rating Table
Operating free-air temperature range, T

A

–55 to 125 0 to 70 0 to 70 °C

Storage temperature range, T

stg

–65 to 150 –65 to 150 –65 to 150 °C
Case temperature for 60 seconds: FK package 260 °C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds J or W package 300 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds D or N package 260 260 °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. Voltage values are with respect to network ground terminal.

2. In the FK, J, or W package, SN55109A and SN55110A chips are either silver glass or alloy mounted, and SN75109A, SN75110A,
and SN75112 chips are glass mounted.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

TA = 125°C

POWER RATING

D 950 mW 7.6 mW/°C 608 mW —

FK 1375 mW 11.0 mW/°C 880 mW 275 mW

J 1375 mW 11.0 mW/°C 880 mW 275 mW

N 1150 mW 9.2 mW/°C 736 mW —

W 1000 mW 8.0 mW/°C 640 mW 200 mW

recommended operating conditions (see Note 3)

SN75109A

SN55109A

SN75109A

SN75110A

SN55110A

SN75112

UNIT

MIN NOM MAX MIN NOM MAX

Supply voltage, VCC+ 4.5 5 5.5 4.75 5 5.25 V
Supply voltage, V

CC–

–4.5 –5 –5.5 –4.75 –5 –5.25 V
Positive common-mode output voltage 0 10 0 10 V
Negative common-mode output voltage 0 –3 0 –3 V
High-level input voltage, V

IH

2 2 V

Low-level output current, V

IL

0.8 0.8 V

Operating free-air temperature, T

A

–55 125 0 70 °C

NOTE 3: When using only one channel of the line drivers, the other channel should be inhibited and/or have its outputs grounded.