Texas Instruments UC5171QTR, UC5171Q, UC5171N Datasheet

Octal Line Driver

INPUTS OUTPUTS

EN DATA EIA-232E(3) EIA-232E/EIA-423A

0 0 (V+)-3V 5V to 6V
0 1 (V-)+3V -5V to -6V
1 X High Z High Z

Note 3: Minimum output swings .

CONNECTION DIAGRAMS

N PACKAGE (TOP VIEW)

Q PACKAGE (TOP VIEW)

V+ (Pin 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V

V- (Pin 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15V

PLCC Power Dissipation , TA = 25°C ( Not e 2) . . . . . . . . . . . . . . . . . . 1000 mW

DIP Power Dissipat ion, TA = 25°C (Note 2) . . . . . . . . . . . . . . . . . . . . 1250 mW

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to +7V

Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12V to +12V

Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10kΩ

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C

Note 1: All voltages are with respec t to ground, pin 18.
Note 2: Consult Packaging section of Data book for thermal limitat ions and

consideration s of packa ge.

UC5171

The UC5171 is a single-ended octal line driver designed to meet both
standard modem control applications (EIA232E/V.28), and long line
drive applicati ons (EIA423A/V.10/X.26). The slew rate for all 8 drivers
is controlled by a single external resistor. The slew rat e and output lev ­els in Low Mode are independent of t he power variations.

Mode selection is accomplished by the select pin Ms logic “low” for low
output mode (EIA232E/V. 28 & EIA423A/V.10) or pin Ms logic “high” for
high mode (EIA232E/V.28). High mode should only be used to drive
adapters that take power from the control lines, or applications using
high threshold receivers.

• Eight Single-Ended Line Drivers in One
Package

• Digital Selection of High Mode
EIA232E/CCITT V.28 only, and Low
Mode EIA232E/V.28 & EIA423A/CCITT
V.10/X.26

• Single External Resistor Controls Slew
Rate

• Wide Supply Voltage Range

• Tri-State Outputs

• Output Short-Circuit Prot ect ion

• Low Power Consumption

• 2kV ESD Protection on all Pins

FEATURES

ABSOLUTE MAXI MUM RATING S (Not e 1)

FUNCTIONAL TABLE

7/95

DESCRIPTION

UC5171

AC ELECTRICAL CHARACTERIST ICS :

DC ELECTRICAL CHARACTERIST ICS :

PARAMETERS SYMBO L TEST CONDITIONS MIN TYP MAX UNITS

POWER SUPPLY REQUIREMENTS

V+ Range 915V
V- Range -15 -9 V
V+ Supply Current I+ R

L = Infinite En = 0V 25 42 mA

V- Supply Current I- R

L = Infinite En = 0V -42 -23 mA

INPUTS

High Level Input Voltage V

IH 2.0 V

Low Level Input Voltage V

IL 0.8 V

Input Clamp Volta ge V

IK II = -15 mA -1.8 -1.1 V

High Level Input Current I

IH VIH = 2.4V 0.25 40 µA

Low Level Input Current I

IL VIL

= 0.4V -200 -8.0 µA

OUTPUTS

High Level V

OH VIN = 0.8V RL = Inf. 5. 0 5.3 6. 0 V

Output Voltage EIA232E

En = 0.8V RL = 3k 5.0 5.3 6.0 V
(EIA42 3A ) RL = 450 4.5 5.2 6.0 V
Low Level V

OL VIN = 2.0V RL = Inf. -6.0 -5.3 -5.0 V

Output Voltage EIA232E

En = 0.8V RL = 3k -6.0 -5.3 -5.0 V
(EIA423A) R

L = 450 -6.0 -5.2 -4.5 V

Output Balance (EIA423A) V

BAL RL = 450 VOH + V OL = VBAL 0.2 0.4 V

High Level V

OH VIN = 0.8V, MS = 2.0V RL = Inf. 7.0 7.6 10 V

Output Voltage ( EIA232E)

En = 0.8V RL = 3k 7.0 7.6 10 V
Low Level Output Volta ge V

OL VIN = 2.0V, MS = 2.0 V RL = Inf. -10 -7.7 -7. 0 V

(EIA232E) En = 0.8V RL = 3k -1 0 -7.7 -7. 0 V
Off-Stat e O utput Current I

OZ En = 2.0V, VO =

±±

6V, MS = 2.0V -100 100 µA

Short-Circuit Cur re nt I

OS En = 0V VIN = 0V 25 50 mA

V

IN = 5V 25 40 mA

PARAMETERS SYMBO L TEST CONDITIONS MIN TYP MAX UNITS

Output Slew Rate t

R RSRA = 2k 6.65 9 .5 12.3 V/µs

t

F RL = 450, CL = 50pF 6.65 10 12.3 V/µs

Output Slew Rate t

R RSRA = 10k 1.33 1 .9 2.45 V/µs

t

F RL = 450, CL = 50pF 1.33 2.2 2.45 V/µs

Propagation Output to t

Hz RSRA = 10k 0.3 1.0 µs

High Impedance t

Lz RL = 450, CL = 50pF 0.5 1.0 µs

Propagation High Impedance to t

zH RSRA = 10k 6.0 15 µs

Output t

zL RL = 450, CL = 50pF 7.0 15 µs

Unless otherwise stated these sp ecif icatio ns hold for | V+ | = | V - | = +10V,
0 < TA < +70°C, MS ≤ 0.8V, R SRA = +1 0k, TA =TJ.

at | V+ | = | V - | = +10V, 0 < T A < +70°C, MS ≤ 0.8V, TA =TJ.

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