Datasheet

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SN75174

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS039B – 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 Enable

Thermal Shutdown Protection

Positive- and Negative-Current Limiting

Operates From Single 5-V Supply

Low Power Requirements

Functionally Interchangeable With MC3487

description

The SN75174 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

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 SN75174 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 SN75174 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

(each driver)

INPUT

ENABLE

OUTPUTS

INPUT

ENABLE

Y Z

H H H L

L H L H

X L Z Z

H = TTL high level, X = irrelevant,

L = TTL low level, 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.

1,2EN

GND

3,4EN

N PACKAGE

(TOP VIEW)

1,2EN

GND

3,4EN

DW PACKAGE

(TOP VIEW)

NC – No internal connection

Summary of content (16 pages)

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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 D 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.11.
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 logic symbol† 1, 2EN 4 logic diagram, each driver (positive logic) EN Y A 1A 2A 2 1 3 6 7 5 Z 1Y 1Z EN 2Y 2Z 3, 4EN 3A 4A 12 EN 10 9 11 14 15 13 3Y 3Z 4Y 4Z † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Output voltage range,VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 10 V to 15 V Input voltage, VI .
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT – 1.5 V VIK Input clamp voltage II = – 18 mA VOH High level output voltage High-level VIH = 2 V,, IOH = – 33 mA VIL= 0.8 V,, 37 3.7 V VOL Low level output voltage Low-level VIH = 2 V,, IOL = 33 mA VIL= 0.8 V,, 11 1.
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – 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 |VOD3| PARAMETER MEASUREMENT INFORMATION RL 2 VOD2 RL 2 VOC Figure 1.
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 PARAMETER MEASUREMENT INFORMATION 3V Input S1 3 V to 0 V Generator (see Note A) 50 Ω 1.5 V 1.5 V Output 0V tPZH RL = 110 Ω CL = 50 pF (see Note B) 0.5 V VOH Output 2.3 V 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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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – 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 5 5 VCC = 5 V TA = 25°C 4 3.5 3 2.5 2 ÁÁ ÁÁ ÁÁ 4 3.5 3 2.5 2 ÁÁ ÁÁ ÁÁ 1.5 1 0.5 0 0 – 20 – 40 – 60 – 80 – 100 VCC = 5 V TA = 25°C 4.5 VOL – Low-Level Output Voltage – V VOH – High-Level Output Voltage – V 4.5 1.5 1 0.
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SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER SLLS039B – OCTOBER 1980 – REVISED MAY 1995 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE SUPPLY CURRENT vs SUPPLY VOLTAGE ÁÁÁÁÁ ÁÁÁÁÁ 100 80 No Load Input Open Outputs Disabled TA = 25°C 25 IICC CC – Supply Current – mA IICC CC – Supply Current – mA 90 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 30 No Load Outputs Enabled TA = 25°C 70 60 Inputs Open 50 ÁÁÁ ÁÁÁ ÁÁÁ 15 ÁÁ ÁÁ ÁÁ 40 Inputs Grounded 30 20 20 10 10 5 0 0 0 1 2 3 4 5 6 7 0 8 1 VCC – Su
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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 SN75174DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN75174DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.
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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) SN75174DWR SOIC DW 20 2000 367.0 367.0 45.0 SN75174DWR SOIC DW 20 2000 367.0 367.0 45.
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