4-Character 5 x 7 Dot Matrix / RoHS Compliant - By Exemption (see page 1) Serial Input Alphanumeric Industrial Display Sunlight Viewable: ISD235X ISD201X, ISD231X, ISD235X ISD201X ISD231X ISD235X RoHS Compliant - By ExemptionDESCRIPTION FEATURES • Four Dot Matrix Characters • Character Height ISD201X— 3.81 mm (0.150") ISD231X— 5.08 mm (0.200") ISD235X— 5.08 mm (0.200") • Built-in CMOS Shift Registers with Constant Current LED Row Drivers • Wide Viewing Angle • Shift Registers Allow Custom Fonts • Easily Cascaded for Multiple Displays • TTL Compatible • End Stackable • Operating Temperature Range: –55°C to +100°C • Categorized for Luminous Intensity • Ceramic Package, Hermetically Sealed Flat Glass Window The ISD201X/231X/235X are four digit 5 x 7 dot matrix serial input alphanumeric displays. The displays are available in red, yellow, high efficiency red, or high efficiency green. The package is a standard twelve-pin hermetic DIP with glass lens. The display can be stacked horizontally or vertically to form messages of any length. These displays have two fourteen-bit CMOS shift registers with built-in row drivers. These shift registers drive twenty-eight rows and enable the design of customized fonts. Cascading multiple displays is possible because of the Data In and Data Out pins. Data In and Out are easily input with the clock signal and displayed in parallel on the row drivers. Data Out represents the output of the 7th bit of digit number four shift register. The shift register is level triggered. The like columns of each character in a display cluster are tied to a single pin (see Block Diagram). High true data in the shift register enables the output current mirror driver stage associated with each row of LEDs in the 5 x 7 diode array. The TTL compatible VB input may either be tied to VCC for maximum display intensity or pulse width modulated to achieve intensity control and reduce power consumption. In the normal mode of operation, input data for digit four, column one is loaded into the seven on-board shift register locations one through seven. Column one data for digits 3, 2 and 1 is shifted into the display shift register locations. Then column one input is enabled for an appropriate period of time, T. A similar process is repeated for columns 2, 3, 4 and 5. If the decode time and load data time into the shift register is t, then with five columns, each column of the display is operating at a duty factor of: RoHS Compliance The ISD201X, ISD231X, ISD235X Intelligent DisplaysTM are hermetically sealed displays using a ceramic and glass construction. These components are not lead (Pb) free but are RoHS Compliant based on the RoHS Compliance Directive's Annex, paragraphs 5 and 7. These exemptions allow for lead (Pb) in glass and ceramic electronic components. Refer to the following excerpts from the RoHS Compliance Directive Annex: T DF = -------------------5 (T + 1 ) Applications of lead, mercury, cadmium and hexavalent chromium, which are exempted from the requirements of Article 4(1) T+t, allotted to each display column, is generally chosen to provide the maximum duty factor consistent with the minimum refresh rate necessary to achieve a flicker free display. For most strobed display systems, each column of the display should be refreshed (turned on) at a minimum rate of 100 times per second. With columns to be addressed, this refresh rate then gives a value for the time T+t of: 1⁄ [5 x (100)]=2.0 msec. If the device is operated at 5.0 MHz clock rate maximum, it is possible to maintain t<T. For short display strings, the duty factor will then approach 20%. See Appnote 44 for application information and Appnotes 18, 19, 22, 23 at www.osram-os.com 2006-04-04 5. Lead in glass of cathode ray tubes, electronic components and fluorescent tubes. 7. Lead in electronic ceramic parts (e.g. piezoelectronic devices). . 1 ISD201X, ISD231X, ISD235X Ordering Information Type Color of Emission Character Height mm (inch) Ordering Code ISD2351 ISD2352 ISD2353 yellow high efficiency red high efficiency green 5.08 (0.200) Q68000A8142 Q68000A8143 Q68000A8144 ISD2010 ISD2011 ISD2012 ISD2013 red yellow high efficiency red high efficiency green 3.81 (0.150) Q68000A8134 Q68000A8135 Q68000A8136 Q68000A8137 ISD2310 ISD2311 ISD2312 ISD2313 red yellow high efficiency red high efficiency green 5.08 (0.200) Q68000A8138 Q68000A8139 Q68000A8140 Q68000A8141 Maximum Ratings Parameter Symbol Value Unit Operating temperature range Top -55 to +100 °C Storage temperature range Tstg -65 to +125 °C Supply voltage VCC to GND VCC -0.5 to 7.0 V 1) Inputs, data out and VB -0.5 to VCC +0.5 V Column input voltage VCOL -0.5 to 6.0 V Solder temperature 1.59 mm (0.063“) below seating plane, t < 5.0 s Ts 260 °C Ptot Ptot Ptot Ptot 0.91 0.86 1.10 1.35 W W W W Allowable power dissipation, TA=25°C2) ISD2010 ISD2011 / ISD2012 / ISD2013 ISD231X ISD235X 2006-04-04 2 ISD201X, ISD231X, ISD235X Timing Characteristics4) l/fCLOCK TTHL TWL TWH VIH 2.0 V VIL 0.8 V CLOCK THOLD TSETUP VIH 2.0 V DATA IN VIL 0.8 V TPLH, TPHL V 2.4 V OH 0.4 V V OL DATA OUT VIH VB 2.0 V VIL 0.8 V TON TOFF ON (illuminated) DISPLAY OFF (not illuminated) 90% 10% AC Electrical Characteristics (VCC= 4.75 to 5.25 V, TA= –55°C to 100°C) Symbol Description Min. Typ. Max.5) Units TSETUP Setup Time 50 10 — ns THOLD Hold Time 25 20 — ns TWL Clock Width Low 75 45 — ns TWH Clock Width High 75 45 — ns F(CLK) Clock Frequency — — 5 MHz TTHL TTLH Clock Transition Time — 75 200 ns TPHL TPLH Propagation Delay Clock to Data Out — 50 125 ns 2006-04-04 3 ISD201X, ISD231X, ISD235X ISD201X3) Package Outlines Dimensions in mm (inch) ISD201X Hue Code Luminous Intensity Code Z H YYWW Pin 1 Indicator Year Work Week OSRAM 6.85 (0.270) 5.08 (0.200) 2.54 (0.100) Part Number Seating Plane 1.27 (0.050) 0.51 (0.020) ±0.08 (0.003) 12 pl. 1.27 (0.050) ±0.13 (0.005) 2.54 (0.100) typ. ±0.13 (0.005) 10 pl., non cum. 0.25 (0.010) typ. ±0.05 (0.002) 7.62 (0.300) 17.75 (0.699) max. 4.44 (0.175) ±0.13 (0.005) Pin 1 marked by dot on back of package 2006-04-04 7.87 (0.310) 3.7 (0.146) 7.37 (0.290) 2.11 (0.083) IDOD5004 4 ISD201X, ISD231X, ISD235X ISD231X / ISD235X3) Package Outlines: Dimensions in mm (inch) ISD231X Hue Code Luminous Intensity Code Z H YYWW Pin 1 indicators dot and notch on package underside Year Work Week 6.86 (0.270) 5.08 (0.200) CL 2.54 (0.100) OSRAM Part No. 1.27 (0.050) 0.51 (0.020) ±0.08 (0.003) 12 pl. 2.54 (0.100) ±0.13 (0.005) 10 pl., non cum. 0.25 (0.010) ±0.05 (0.002) 6.35 (0.250) ±0.25 (0.010) 20.07 (0.790) max. 5 (0.197) ±0.13 (0.005) 2.51 (0.099) ±0.13 (0.005) 2.84 (0.112) 4.88 (0.192) 8.43 (0.332) 12 11 10 9 8 7 1 2 3 4 5 6 Tolerance: ±0.30 (0.015) 2006-04-04 Pin 1 2 3 4 5 6 Function Column 1 Column 2 Column 3 Column 4 Column 5 No Connection Pin 7 8 9 10 11 12 Function Data Out VB VCC Clock Ground Data In IDOD5005 5 ISD201X, ISD231X, ISD235X Maximum Allowable Power Dissipation vs. Temperature, ISD201X PD Maximum Allowable Power Dissipation vs. Temperature, ISD235X IDDG5121 1.0 W PD IDDG5123 1.5 W 0.8 R thJA = 35 ˚C/W R thJA = 55 ˚C/W 1.0 0.6 R thJA = 35 ˚C/W R thJA = 55 ˚C/W 0.4 0.5 0.2 Tjmax = 125 ˚C Tjmax = 125 ˚C 0 -60 -40 -20 0 20 40 60 80 ˚C 120 0 -60 -40 -20 0 20 40 60 80 ˚C 120 TA TA Maximum Allowable Power Dissipation vs. Temperature, ISD231X PD IDDG5122 1.2 W 1.0 R thJA = 35 ˚C/W R thJA = 55 ˚C/W 0.8 0.6 0.4 0.2 Tjmax = 125 ˚C 0 -60 -40 -20 0 20 40 60 80 ˚C 120 TA 2006-04-04 6 ISD201X, ISD231X, ISD235X Optical Characteristics Red ISD2010 / ISD2310 Symbol Min. Typ.9) Units Test Conditions IVpeak 105 200 µcd 220 370 VCC=5.0 V, VCOL=3.5 V, TJ=25°C 10), VB=2.4 V λVpeak — 660 nm — λdom — 639 nm — Symbol Min. Typ.9) Units Test Conditions IVpeak 400 750 µcd ISD2311 650 1140 ISD2351 2400 3400 VCC=5.0 V, VCOL=3.5 V, TJ=25°C 10), VB=2.4 V λVpeak — 583 nm — λdom — 585 nm — Symbol Min. Typ.9) Units Test Conditions IVpeak 400 1430 µcd 650 1430 VCC=5.0 V, VCOL=3.5 V, TJ=25°C 10), VB=2.4 V Description Peak Luminous Intensity per LED (Character Average) 6) 7) ISD2010 ISD2310 Peak Wavelength Dominant Wavelength 8) Yellow ISD2011 / ISD2311 / ISD2351 Description Peak Luminous Intensity per LED (Character Average) 6) 7) ISD2011 Peak Wavelength Dominant Wavelength 8) High Efficiency Red ISD2012 / ISD2312 / ISD2352 Description Peak Luminous Intensity per LED (Character Average) 6) 7) ISD2012 ISD2312 ISD2352 853 2500 λVpeak — 630 nm — λdom — 626 nm — Symbol Min. Typ.9) Units Test Conditions IVpeak 850 1550 µcd ISD2313 1280 2410 ISD2353 2400 3000 VCC=5.0 V, VCOL=3.5 V, TJ=25°C 10), VB=2.4 V Peak Wavelength Dominant Wavelength 8) High Efficiency Green ISD2013 / ISD2313 / ISD2353 Description Peak Luminous Intensity per LED6) 7) (Character Average) ISD2013 Peak Wavelength λVpeak — 568 nm — Dominant Wavelength 8) λdom — 574 nm — 2006-04-04 7 ISD201X, ISD231X, ISD235X Recommended Operating Conditions (Guaranteed over operating temperature range) Parameter Symbol Min. Nom. Max. Units Supply Voltage VCC 4.75 5.0 5.25 V Data Out Current, Low State IOL — — — mA Data Out Current, High State IOH — — — mA Column Input Voltage, Column On* VCOL 2.75 — 3.5 V Setup Time TSETUP 70 45 — ns Hold Time THOLD 30 — — ns Width of Clock TW(CLK) 75 — — ns Clock Frequency TCLK — — 5.0 MHz Clock Transition Time TTHL — — 200 ns Free Air Operating Temperature Range TA –55 — +100 °C * See Figures „Peak Column Current vs. Column Voltage“ Peak Column Current vs. Column Voltage, ISD201X IDDG5124 600 mA I COL Peak Column Current vs. Column Voltage, ISD231X IDDG5125 600 mA Peak Column Current vs. Column Voltage, ISD235X IDDG5126 600 mA I COL I COL 500 500 500 400 400 400 300 300 300 ISD2310 ISD2311/2/3 200 200 200 100 100 2010 2011/2012/2013 100 0 0 1 2 3 4 5 V 6 0 0 1 2 3 VCOL 2006-04-04 4 5 V 6 VCOL 8 0 0 1 2 3 4 5 V 6 VCOL ISD201X, ISD231X, ISD235X Electrical Characteristics (–55°C to +100°C, unless otherwise specified) Description Supply Current (quiescent) Symbol Min. Typ.9) Max. Units Test Conditions ICC — — 5.0 mA — — 5.0 VB=0.4 V VB=2.4 V VCC=5.25 V VCLK=VDATA=2.4V All SR Stages=Logical 1 Supply Current (operating) ICC — — 10 mA FCLK=5.0 MHz Column Current at Any Column Input* ICOL — — 10 µA VB=0.4 V Column Current at Any Column Input* ISD2010 red ISD2011/2/3: yellow, HER, green ISD231X: red, yellow, HER, green ISD235X: yellow, HER, green ICOL — mA — VB, Clock or Data Input Threshold Low VIL 350 335 380 550 435 410 520 650 VCC=5.25 V VCOL=3.5 V All SR Stages=Logical 1 — — 0.8 V VB, Clock or Data Input Threshold High VIH 2.0 — — V Data Out Voltage VOH 2.4 3.6 — V IOH=0.5 mA VOL — — — — IOL=1.6 mA Input Current Logical 0, VB only IIL –30 –110 –300 µA Input Current Logical 0, Data, Clock IIL — — — — VCC=4.75 V–5.25 V, VIL=0.8 V Power Dissipation per Package ISD201X ISD231X ISD235X PD — — W VCC=5.0 V, VCOL=3.5 V, 17.5% DF 15 LEDs on per character, VB=2.4 V — °C/W — Thermal Resistance IC, Junction-to-Pin RqJ-PIN ISD201X ISD231X ISD235X 0.44 0.52 0.74 — 30 20 25 * See Figures „Peak Column Current vs. Column Voltage“ (page 8) 2006-04-04 9 VCC=4.75 V–5.25 V VCC=5.25 V ICOL=0 mA ISD201X, ISD231X, ISD235X Block Diagram Column Drive Inputs Columns 1 2 3 4 5 LED Matrix 2 Blanking Control, 1 2 3 4 5 6 7 Rows VB Serial Data Input 1 2 3 4 5 6 7 Rows 1-7 LED Matrix 3 Rows 1-7 LED Matrix 4 Rows 1-7 Constant Current Sinking LED Drivers Rows 8-14 Rows 15-21 28-bit SIPO Shift Register Clock Rows 22-28 Serial Data Output IDBD5062 Contrast Enhancement Filters for Sunlight Readability Display Color Filter Color Marks Polarized Corp.* Optical Characteristics of Filter Red, HER Red MPC 20-15C 25% at 635 nm, Circular Polarizer Yellow Amber MPC 30-25C 25% at 583 nm, Circular Polarizer Green Yellow/Green MPC 50-122C 22% at 568 nm, Circular Polarizer Multiple Colors High Ambient Light Neutral Gray MPC 80-10C 10% Neutral, Circular Polarizer Multiple Colors Neutral Gray MPC 80-37C 37% Neutral, Circular Polarizer * Marks Polarized Corp. 25-B Jefryn Blvd. W. Deer Park, NY 11729 516 /242-1300 FAX 516 /242-1347 Marks Polarized Corp. manufactures to MIL-1-45208 inspection system. 2006-04-04 10 ISD201X, ISD231X, ISD235X The small alphanumeric displays are hybrid LED and CMOS assemblies that are designed for reliable operation in commercial and industrial environments. Optimum reliability and optical performance will result when the junction temperature of the LEDs and CMOS ICs are kept as low as possible. A thermal resistance of 28°C/W results in a typical junction rise of 6°C. See Equation 2 below. For ease of calculations the maximum allowable electrical operating condition is dependent upon the aggregate thermal resistance of the LED matrixes and the two driver ICs. All of the thermal management calculations are based upon the parallel combination of these two networks which is 15°C/W. Maximum allowable power dissipation is given in Equation 3. Thermal Modeling ISD displays consist of two driver ICs and four 5 x 7 LED matrixes. A thermal model of the display is shown in Figure „Thermal Model“. It illustrates that the junction temperature of the semiconductor = junction self heating + the case temperature rise + the ambient temperature. Equation 1 shows this relationship. Equation 3. P Thermal Model T –T J ( MAX ) A DISPLAY = --------------------------------------R +R θJC θCA P LED T1 IC T2 LED T1 LED T1 IC T2 LED T1 R θ1 R θ2 R θ1 R θ1 Rθ 2 R θ1 LED Power IC Power LED Power LED Power IC Power IDDG5321 See Equation 1 below. The junction rise within the LED is the product of the thermal impedance of an individual LED (37°C/W, DF=20%, F=200 Hz), times the forward voltage, VF(LED), and forward current IF(LED), of 13 – 14.5 mA. This rise averages TJ(LED)=1°C. The Table below shows the VF(LED) for the respective displays. VF Min. Typ. Max. 1.6 1.7 2.0 ISD2011/2/3 ISD2311/2/3 ISD2351/2/3 1.9 2.2 3.0 I ( n ⁄ 35 ) DF + V I COL COL CC CC Key to equation symbols DF Duty factor ICC Quiescent IC current ICOL Column current n Number of LEDs on in a 5 x 7 array PCASE Package power dissipation excluding LED under consideration PCOL Power dissipation of a column PDISPLAY Power dissipation of the display PLED Power dissipation of a LED RqCA Thermal resistance case to ambient RqJC Thermal resistance junction to case TA Ambient temperature TJ(IC) Junction temperature of an IC TJ(LED) Junction temperature of a LED TJ(MAX) Maximum junction temperature VCC IC voltage VCOL Column voltage VF(LED) Forward voltage of LED ZqJC Thermal impedance junction to case LED Power ISD2010 ISD2310 = 5V For further reference see Figures „Maximum Allowable Power Dissipation vs. Temperature“ (page 6) and Figures from page 12 on. R θ CA Model Number DISPLAY Optical Considerations The light output of the LEDs is inversely related to the LED diode’s junction temperature as shown in „Normalized Luminous Intensity vs. Junction Temperature“ (page 12). For optimum light output, keep the thermal resistance of the socket or PC board as low as possible. The junction rise within the LED driver IC is the combination of the power dissipated by the IC quiescent current and the 28 row driver current sinks. The IC junction rise is given in Equation 2. Equation 1. T J ( LED ) = P LED Z θJ C + P CASE ( R θJC + R θCA )+ T A T J ( LED ) = [( I COL ⁄ 28 )V F ( LED ) Z θJC ] + [ ( n ⁄ 35 )I COL DF ( 5V COL ) + V CC I CC ] ⋅ [ R θJC + R θCA ] + T A Equation 2. T J ( IC ) = P COL ( R θJC + R θCA ) + T A T J ( IC ) = [ 5 ( V COL – V F ( LED ) ) ⋅ ( I COL ⁄ 2 ) ⋅ ( n ⁄ 35 )DF + V CC ⋅ I CC ] ⋅ [ R θJC + R θCA ] + T A 2006-04-04 11 ISD201X, ISD231X, ISD235X Normalized Luminous Intensity vs. Junction Temperature Max. Package Power Dissipation, ISD201X IDDG5127 101 PDmax IDDG5129 1.5 W Normalized to: TA = 25 ˚C Normalized Liminous Intensity 1.0 0.5 100 VCC = 5.25 V, ICC = 10 mA VCOL = 3.5 V, ICOL = 410 mA DF = 20%, TA = 25 ˚C 0 0 5 10 15 20 25 30 35 40 LEDs on per Character Max. Package Power Dissipation, ISD231X IDDG5130 2.0 PDmax W 10-1 -60 -40 -20 0 20 40 60 80 100 ˚C 140 1.5 Tj When mounted in a 10°C/W socket and operated at Absolute Maximum Electrical conditions, the display will show an LED junction rise of 17°C. If TA=40°C, then the LED’s TJ will be 57°C. Under these conditions the following Figure „Max. LED Junction Temperature vs. Socket Thermal Resistance“ shows that the lV will be 75% of its 25°C value. 1.0 0.5 VCC = 5.25 V, ICC = 10 mA VCOL = 3.5 V, ICOL = 520 mA DF = 20%, TA = 25 ˚C Max. LED Junction Temperature vs. Socket Thermal Resistance IDDG5128 50 0 ∆Tj ˚C 0 5 10 15 20 25 30 35 40 LEDs on per Character Max. Package Power Dissipation, ISD235X 40 PDmax 35 IDDG5131 3.0 W VCC = 5.25 V, ICC = 10 mA VCOL = 3.5 V, ICOL = 600 mA DF = 20%, TA = 25 ˚C 2.5 30 2.0 25 20 1.5 15 10 5 0 2006-04-04 0 VCOL = 3.5, ICOL = 410 mA VCC = 5.25 V, ICC = 10 mA 1.0 n = 20 LEDs, DF = 20% P = 0.87 W 0.5 5 10 15 20 25 30 35 ˚C/W 50 Socket Thermal Resistance 0 12 0 5 10 15 20 25 30 35 40 LEDs on per Character ISD201X, ISD231X, ISD235X Package Power Dissipation, ISD201X PD Max. Character Power Dissipation, ISD201X IDDG5132 1.5 W PD VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 335 mA DF = 20%, TA = 25 ˚C IDDG5133 0.5 W VCC = 5.25 V, ICC = 10 mA VCOL = 3.5 V, ICOL = 410 mA 0.4 Duty Factor = 20% 1.0 0.3 17% 0.2 0.5 10% 0.1 5% 0 0 0 5 10 15 20 25 30 35 40 LEDs on per Character Package Power Dissipation, ISD231X PD 5 10 15 20 25 30 35 40 LEDs on per Character Max. Character Power Dissipation, ISD231X IDDG5134 1.5 W 0 PD 0.5 W VCC = 5.25 V, ICC = 10 mA VCOL = 3.5 V, ICOL = 380 mA IDDG5135 0.4 Duty Factor = 20% 1.0 0.3 17% 0.2 0.5 10% 0.1 VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 380 mA DF = 20%, TA = 25 ˚C 0 0 5% 0 5 10 15 20 25 30 35 40 LEDs on per Character Package Power Dissipation, ISD235X PD VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 450 mA PD IDDG5137 2.0 W VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 450 mA DF = 20% DF = 20% 1.5 1.5 1.0 1.0 0.5 0.5 0 2006-04-04 0 5 10 15 20 25 30 35 40 LEDs on per Character Max. Character Power Dissipation, ISD235X IDDG5136 2.0 W 0 0 5 10 15 20 25 30 35 40 LEDs on per Character 13 0 5 10 15 20 25 30 35 40 LEDs on per Character ISD201X, ISD231X, ISD235X Character Power Dissipation, ISD201X PD Character Power Dissipation, ISD235X IDDG5138 0.4 W VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 335 mA PD IDDG5140 0.5 W VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 450 mA 0.4 0.3 Duty Factor = 20% Duty Factor = 20% 0.3 17% 0.2 10% 0.1 0.2 17% 10% 0.1 5% 5% 0 0 0 5 10 15 20 25 30 35 40 LEDs on per Character Character Power Dissipation, ISD231X PD IDDG5139 0.5 W VCC = 5 V, ICC = 5 mA VCOL = 3.5 V, ICOL = 380 mA 0.4 Duty Factor = 20% 0.3 0.2 17% 0.1 10% 5% 0 2006-04-04 0 5 10 15 20 25 30 35 40 LEDs on per Character 14 0 5 10 15 20 25 30 35 40 LEDs on per Character ISD201X, ISD231X, ISD235X Revision History: 2006-04-04 Previous Version: 2004-12-09 Page Subjects (major changes since last revision) Date of change all RoHS Compliant - By Exemption 2006-03-03 Attention please! The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. Due to technical requirements components may contain dangerous substances. For information on the types in question please contact our Sales Organization. If printed or downloaded, please find the latest version in the Internet. Packing Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. Components used in life-support devices or systems must be expressly authorized for such purpose! Critical components11) page 16 may only be used in life-support devices or systems12) page 16 with the express written approval of OSRAM OS. 2006-04-04 15 ISD201X, ISD231X, ISD235X Remarks: 1) Operation above +100°C ambient is possible if the following conditions are met. The junction should not exceed TJ=125°C and the case temperature (as measured at pin 1 or the back of the display) should not exceed TC=100°C. 2) Maximum allowable dissipation is derived from: VCC=5.25 V, VB=2.4 V, VCOL=3.5 V 20 LEDs on per character, 20% DF. 3) Dimensions are specified as follows: inch (mm) 4) VB Pulse Width Frequency—50 kHz (max.) 5) All typical values specified at VCC=5.0 V and TA=25°C unless otherwise noted. 6) The displays are categorized for luminous intensity with the intensity category designated by a letter code on the bottom of the package. 7) The luminous sterance of the LED may be calculated using the following relationships: LV (cd/m2) = lV (Candela)/A (Meter)2 LV (Footlamberts) = p lv (Candela)/A (Foot)2 A=5.3 x 10–8 m2 = 5.8 x 10–7 (Foot)2 8) Dominant wavelength (ldom) is derived from the CIE chromaticity diagram and represents the single wavelength which defines the color of the device. 9) All typical values specified at VCC=5.0 V and TA=25°C unless otherwise noted. 10) The luminous intensity is measured at TA=TJ=25°C. No time is allowed for the device to warm up prior to measurement. 11) A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life-support device or system, or to affect its safety or the effectiveness of that device or system. 12) Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they fail, it is reasonable to assume that the health or the life of the user may be endangered. Published by OSRAM Opto Semiconductors GmbH Wernerwerkstrasse 2, D-93049 Regensburg www.osram-os.com © All Rights Reserved. 2006-04-04 16