Datasheet

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SN75172

QUADRUPLE DIFFRENTIAL LINE DRIVER

SLLS038B – OCTOBER 1980 – REVISED MAY 1995

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Meets or Exceeds the Requirements of

ANSI Standards EIA/TIA-422-B and RS-485

and ITU Recommendation V.11

Designed for Multipoint Transmission on

Long Bus Lines in Noisy Environments

3-State Outputs

Common-Mode Output Voltage Range of

–7 V to 12 V

Active-High and Active-Low Enables

Thermal Shutdown Protection

Positive- and Negative-Current Limiting

Operates From Single 5-V Supply

Logically Interchangeable With AM26LS31

description

The SN75172 is a monolithic quadruple

differential line driver with 3-state outputs. It is

designed to meet the requirements of ANSI

Standards EIA/TIA-422-B and RS-485 and ITU

Recommendation V.11. The device is optimized

for balanced multipoint bus transmission at rates

of up to 4 megabaud. Each driver features wide

positive and negative common-mode output

voltage ranges, making it suitable for party-line

applications in noisy environments.

The SN75172 provides positive- and negative-current limiting and thermal shutdown for protection from line

fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximately

150°C. This device offers optimum performance when used with the SN75173 or SN75175 quadruple

differential line receivers.

The SN75172 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

(each driver)

INPUT

ENABLES OUTPUTS

INPUT

G G Y Z

H H X H L

L H XLH

H XLHL

L XLLH

X LHZZ

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

Z = high impedance (off)

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.

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.

GND

N PACKAGE

(TOP VIEW)

GND

DW PACKAGE

(TOP VIEW)

NC – No internal connection

Summary of content (14 pages)

PAGE 1
SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 D D D D D D D D D N PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.
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SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 logic symbol† G G 4 12 logic diagram (positive logic) ≥1 G EN G 4 12 2 1A 2A 3A 4A 2 1 3 6 7 5 10 9 11 14 15 13 1A 1Y 1 3 1Y 1Z 1Z 6 2Y 2A 2Z 7 5 2Y 2Z 3Y 10 3Z 3A 4Y 9 11 3Y 3Z 4Z 14 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Terminal numbers shown are for the N package.
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SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 recommended operating conditions Supply voltage, VCC MIN NOM MAX UNIT 4.75 5 5.25 V High-level input voltage, VIH 2 V Low-level input voltage, VIL 0.
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SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 SYMBOL EQUIVALENTS DATA SHEET PARAMETER EIA/TIA-422-B RS-485 VO |VOD1| Voa, Vob Vo Voa, Vob Vo |VOD2| Vt (RL = 100 Ω) Vt (RL = 54 Ω) Vt (Test Termination) Measurement 2) ∆|VOD| | |Vt| – |Vt| | | |Vt| – |Vt| | VOC ∆|VOC| IOS |Vos| |Vos – Vos| |Isa|,|Isb| |Vos| |Vos – Vos| IO |Ixa|,|Ixb| Iia,Iib |VOD2| switching characteristics, VCC = 5 V, TA = 25°C PARAMETER td(OD) tt(OD) Differential-output delay time
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SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 PARAMETER MEASUREMENT INFORMATION 3V S1 Output 0 V to 3 V Generator (see Note A) Input 1.5 V tPZH RL = 110 Ω 50 Ω 1.5 V 0.5 V 0V VOH Output 3V (see Note C) 2.3 V CL = 50 pF (see Note B) Voff ≈ 0 V tPHZ TEST CIRCUIT VOLTAGE WAVEFORMS NOTES. A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, duty cycle = 50%, tr ≤ 5 ns, tf ≤ 5 ns, ZO = 50 Ω. B.
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SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 TYPICAL CHARACTERISTICS HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VCC = 5 V TA = 25°C 4 3.5 3 2.5 2 1.5 1 4 3.5 3 2.5 2 1.5 1 0.5 0.5 0 VCC = 5 V TA = 25°C 4.5 VOL – Low-Level Output Voltage – V VOH – High-Level Output Voltge – V 4.
PAGE 7
SN75172 QUADRUPLE DIFFRENTIAL LINE DRIVER SLLS038B – OCTOBER 1980 – REVISED MAY 1995 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE SUPPLY CURRENT vs SUPPLY VOLTAGE 100 80 70 60 Inputs Open 50 ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ 40 Inputs Grounded 30 20 10 0 0 1 2 3 No Load Input Open Output Enabled TA = 25°C 25 ICC I CC – Supply Current – mA 90 ICC I CC – Supply Current – mA 30 No Load Outputs Enabled TA = 25°C 4 5 6 7 20 15 10 5 0 8 0 1 VCC – Supply Voltage – V Figure 9 2 3 4 5 6
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN75172DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN75172DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 3-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN75172DWR SOIC DW 20 2000 367.0 367.0 45.0 SN75172DWR SOIC DW 20 2000 367.0 367.0 45.
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