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UC5172 の電気的特性と機能

UC5172のメーカーはUNITRODEです、この部品の機能は「Octal Line Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 UC5172
部品説明 Octal Line Driver
メーカ UNITRODE
ロゴ UNITRODE ロゴ 




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UC5172 Datasheet, UC5172 PDF,ピン配置, 機能
UC5172
Octal Line Driver
FEATURES
Eight Single-Ended Line Drivers in One
Package
Meets Standards EIA232E/CCITT V.28,
and EIA423A/CCITT V.10/X.26
Single External Resistor Controls Slew
Rate
Wide Supply Voltage Range
Tri-State Outputs
Output Short-Circuit Protection
Low Power Consumption
2kV ESD Protection on all Pins
EOS on all Output Pins 35V under all
Output Conditions
High Current Output for Long Line
Drive, Exceeds Standards
CONNECTION DIAGRAMS
N PACKAGE (TOP VIEW)
DESCRIPTION
The UC5172 is a single-ended octal line driver designed to meet both
standard modem control applications (EIA232E/V.28), and long line
drive applications (EIA423A/V.10/X.26). The slew rate for all 8 drivers
is controlled by a single external resistor. The slew rate and output lev-
els are independent of the power variations.
The UC5172 has high output current, and current balance for long line
drive applications. EOS - Output parasitic SCRs powered on and off
are 35V, well above signal levels, allowing protection devices to work.
Inputs are compatible TTL+MOS logic families and are diode protected
against negative transients.
FUNCTIONAL TABLE
INPUTS
EN
0
0
1
Note 2: Minimum output swings.
DATA
0
1
X
OUTPUT
EIA232E/EIA423A
5V to 6V
-5V to -6V
High Z
ABSOLUTE MAXIMUM RATINGS (Note 1)
V+ (Pin 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
V- (Pin 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15V
PLCC Power Dissipation, TA=25°C (Note 3) . . . . . . . . . . . . . . . . . . . 1000 mW
DIP Power Dissipation, TA=25°C (Note 3) . . . . . . . . . . . . . . . . . . . . . 1250 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to +7V
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6V to +6V
Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10k
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Note 1: All voltages are with respect to ground, pin 18.
Note 3: Consult Packaging section of Databook for thermal limitations and
considerations of package.
Q PACKAGE (TOP VIEW)
9/96

1 Page





UC5172 pdf, ピン配列
AC PARAMETER TEST CIRCUIT AND WAVEFORMS
UC5172
AC CHARACTERISTICS
Driver Slew Rate
Driver tR & tF (10-90%) EIA-423A Mode
APPLICATIONS
Slew Rate Programming
Slew rate for the UC5172 is set up by a single external re-
sistor connected between the SRA pin and ground. Slew
rate adjustments can be approximated by using the fol-
lowing formula:
V/µs
=
20
RSRA
(RSRA
in
k)
The slew rate resistor can vary between 2k and 10k
which allows slew rates between 10 to 2.2V/µs, respec-
tively. The relationship between slew rate and RSRA is
shown in the typical characteristics.
Waveshaping of the output lets the user control the level
of interference (near-end crosstalk) that may be coupled
to adjacent circuits in an interconnection. The recom-
mended output characteristics for cable length and data
rates can be found in EIA standard EIA-423A. Approxima-
tions of these standards are given by the following equa-
tions:
Max. Data Rate = 300/t (For data rates 1k to 100k bit/s)
Max. Cable Length (feet) = 100 x t (Max. length 4000
feet)
where t is the transition time from 10% to 90% of the out-
put swing in microseconds. For data rates below 1k bit/s,
t may be up to 300 microseconds.
The UC5172 has been used in applications up to
460KBPS.
3


3Pages





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共有リンク

Link :


部品番号部品説明メーカ
UC5170C

Octal Line Driver

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UC5170C

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UC5171

Octal Line Driver

UNITRODE
UNITRODE
UC5171

Octal Line Driver

Texas Instruments
Texas Instruments


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