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參數(shù)資料
| 型號(hào)： | SLO2016 |
| 廠商： | SIEMENS A G |
| 元件分類(lèi)： | 顯示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, HIGH EFFICIENCY RED, 4.72 mm |
| 文件頁(yè)數(shù)： | 5/5頁(yè) |
| 文件大小： | 203K |
| 代理商： | SLO2016 |
2–216
SLR/SLO/SLG/SLY2016
Design Considerations
For details on design and applications of the SLX2016 in
multiple display systems, refer to Appnote 15 in the current
Siemens Optoelectronics Data Book.
Electrical & Mechanical Considerations
Voltage Transient Supression
We recommend that the same power supply be used for the
display and the components that interface with the display to
avoid logic inputs higher than VCC. Additionally, the LEDs
may cause transients in the power supply line while they
change display states. The common practice is to place .01
mF capacitors close to the displays across VCC and GND,
one for each display, and one 10
F capacitor for every sec-
ond display.
ESD Protection
The CMOS IC of the SLX2016 is resistant to ESD damage
and capable of withstanding discharges less than 2 KV.
However, take all the standard precautions, normal for
CMOS components. These include properly grounding per-
sonnel, tools, tables, and transport carriers that come in con-
tact with unshielded parts. If these conditions are not, or
cannot be met, keep the leads of the device shorted together
or the parts in anti-static packaging.
Soldering Considerations
The SLX2016 can be hand soldered with SN63 solder using
a grounded iron set to 260
°C.
Wave soldering is also possible following these conditions:
Preheat that does not exceed 93
°C on the solder side of the
PC board or a package surface temperature of 85
°C. Water
soluble organic acid ux (except carboxylic acid) or resin-
based RMA ux without alcohol can be used.
Wave temperature of 245
°C ±5°C with a dwell between 1.5
sec. to 3.0 sec. Exposure to the wave should not exceed
temperatures above 260
°C for ve seconds at 0.063" below
the seating plane. The packages should not be immersed in
the wave.
Post Solder Cleaning Procedures
The least offensive cleaning solution is hot D.I. water (60
°C)
for less than 15 minutes. Addition of mild saponiers is
acceptable. Do not use commercial dishwasher detergents.
For faster cleaning, solvents may be used. Carefully select
any solvent as some may chemically attack the nylon pack-
age. Maximum exposure should not exceed two minutes at
elevated temperatures. Acceptable solvents are TF (tri-
chorotriuorethane), TA, 111 Trichloroethane, and unheated
acetone.
Note:
Acceptable commercial solvents are: Basic TF, Arklone, P.
Genesolv, D. Genesolv DA, Blaco-Tron TF, Blaco-Tron TA,
and Freon TA.
Unacceptable solvents contain alcohol, methanol, methylene
chloride, ethanol, TP35, TCM, TMC, TMS+, TE, or TES.
Since many commercial mixtures exist, contact a solvent
vendor for chemical composition information. Some major
solvent manufacturers are: Allied Chemical Corportation,
Specialty Chemical Division, Morristown, NJ; Baron-
Blakeslee, Chicago, IL; Dow Chemical, Midland, MI; E.I.
DuPont de Nemours & Co., Wilmington, DE.
For further information refer to Siemens Appnotes 18 and 19.
An alternative to soldering and cleaning the display modules
is to use sockets. Standard pin DIP sockets .300" wide with
.100" centers work well for single displays. Multiple display
assemblies are best handled by longer SIP sockets or DIP
sockets when available for uniform package alignment.
Socket manufacturers are Aries Electronics, Inc., French-
town, NJ; Garry Manufacturing, New Brunswick, NJ; Robin-
son-Nugent, New Albany, IN; and Samtec Electronic
Hardware, New Albany, IN.
For further information refer to Siemens Appnote 22.
Optical Considerations
The .180" high characters of the SLX2016 gives readability
up to eight feet. Proper lter selection enhances readability
over this distance.
Filters enhance the contrast ratio between a lit LED and the
character background intensifying the discrimination of differ-
ent characters.The only limitation is cost. Take into consider-
ation the ambient lighting environment for the best cost/
benet ratio for lters.
Incandescent (with almost no green) or uorescent (with
almost no red) lights do not have the at spectral response of
sunlight. Plastic band-pass lters are an inexpensive and
effective way to strengthen contrast ratios.The SLR2016 is a
standard red display and should be matched with long wave-
length pass lter in the 600 nm to 620 nm range.
The SLO2016 is a high efciency red display and should be
matched with a long wavelength pass lter in the 470 nm to
590 range. The SLG/SLY2016 should be matched with a yel-
low-green band-pass lter that peaks at 565 nm. For displays
of multiple colors, neutral density gray lters offer the best
compromise.
Additional contrast enhancement is gained by shading the
displays. Plastic band-pass lters with built-in louvers offer
the next step up in contrast improvement. Plastic lters can
be improved further with anti-reective coatings to reduce
glare. The trade-off is fuzzy characters. Mounting the lters
close to the display reduces this effect. Take care not to over-
heat the plastic lter by allowing for proper air ow.
Optimal lter enhancements are gained by using circular
polarized, anti-reective, band-pass lters. Circular polariz-
ing further enhances contrast by reducing the light that trav-
els through the lter and relfects back off the display to less
than 1%.
Several lter manufacturers supply quality lter materials.
Some of them are: Panelgraphic Corporation, W. Caldwell,
NJ; SGL Homalite, Wilmington, DE; 3M Company, Visual
Products Division, St. Paul, MN; Polaroid Corporation, Polar-
izer Division, Cambridge, MA; Marks Polarized Corporation,
Deer Park, NY, Hoya Optics, Inc., Fremont, CA.
One last note on mounting lters: recessing displays and
bezel assemblies is an inexpensive way to provide a shading
effect in overhead lighting situations. Several Bezel manufac-
turers are: R.M.F. Products, Batavia, IL; Nobex Components,
Grifth Plastic Corp., Burlingame, CA; Photo Chemical Prod-
ucts of California, Santa Monica, CA; I.E.E.-Atlas, Van Nuys,
CA.
Refer to Siemens Appnote 23 for further information.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SLO24CR | 制造商:Weidmuller 功能描述:PULSE TX 4000VAC 3PF - Bulk 制造商:Weidmuller 功能描述:DELCON 24VDCIN/60VDC 3.0AOUT |
| SLO24CRA | 制造商:Weidmuller 功能描述:PULSE TX 4000VAC 3PF - Bulk 制造商:Weidmuller 功能描述:DELCON 24VDCIN/250VDC 1.8AOUT |
| SLO24CRA4 | 制造商:Weidmuller 功能描述:DELCON 24VDCIN/250VDC 4.0AOUT |
| SLO24CRSN | 制造商:Weidmuller 功能描述:DELCON 24VDCIN/60VDC 3.0AOUT |
| SLO24CRX | 制造商:Weidmuller 功能描述:PULSE TX 4000VAC 3PF - Bulk 制造商:Weidmuller 功能描述:DELCON 24VDCIN/24VDC 10.0AOUT |
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