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UC5172のメーカーはUNITRODEです、この部品の機能は「Octal Line Driver」です。 |
部品番号 | UC5172 |
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部品説明 | Octal Line Driver | ||
メーカ | UNITRODE | ||
ロゴ | |||
このページの下部にプレビューとUC5172ダウンロード(pdfファイル)リンクがあります。 Total 4 pages
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 10kΩ
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 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
kΩ)
The slew rate resistor can vary between 2k and 10kΩ
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 | |||
ページ | 合計 : 4 ページ | ||
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PDF ダウンロード | [ UC5172 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
UC5170C | Octal Line Driver | UNITRODE |
UC5170C | Octal Line Driver (Rev. A) | Texas Instruments |
UC5171 | Octal Line Driver | UNITRODE |
UC5171 | Octal Line Driver | Texas Instruments |