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| TM DATA SHEET SUBMINIATURE PROPORTIONALLY CONTROLLED HEATER The DN511 is a subminiature proportionally controlled heater, whose temperature can be programmed with a single external resistor. A unique design allows this device to operate over a large voltage range from 15volts to +60 Volts D.C. without drawing excessive current at turn-on.Temperature of the DN511 can be set at the factory upon request. The DN511 is in a ceramic package and can supply up to 3.5 watts of power from an unregulated power supply. FEATURES * BERYLLIA BASE FOR GOOD THERMAL CONDUCTION * REGULATION TEMPERATURE FROM 5C ABOVE AMBIENT TO 100C * 15 TO 70 VOLT OPERATION * ELECTRICALLY ISOLATED FROM THE CASE MAXIMUM RATINGS Rating Supply Voltage Power Dissipation Operating Temperature Storage Temperature OPERATING CHARACTERISTICS Characteristic Supply Voltage (Pin 1 to Pin 2) Supply Current at Turn on vs. Power Supply Voltage Supply Current at Turn-on VDD = +30 Volts Temperature Variation over Operating Voltage Temperature Variation with Load Control Resistor Value Pin 3 to Pin 4 (See Table 1) Control Temperature Range See Table 1 Turn on power at start-up Symbol VDD ION ION TV TL RC TC PON 0 Ambient 120 Min +15 Max +60 Unit VDC mADC mADC C Symbol VDD PD TMAX TMIN Value 70 4 120 -65 to +150 Unit VDC Watts C C PIN 1 2 GENERAL DESCRIPTION VDD 1 DN511 HEATER BLOCK DIAGRAM 4 CONTROL CIRCUIT TEMP. SENSOR RC TEMP. SET + COM. HEATER 2 3 OUTLINE DIMENSIONS Heater surface 0.025" 0.110" 0.340" 0.480" Therm Optics DN511 4 0.275" xxxx 3 See Figure 2 90 110 2 3 The DN511 electrical output pads are Pd-Pt-Ag and can be soldered. The solder used, such as SN-62, should contain silver to prevent leaching of the pads from the substrate. 0.010" 0.060" C C Watts 0.010" Pad size is 0.060" x 0.107" (four places) 0.107" 0.041" 0.107" See Figure 3 TM Page 1 DN511 TYPICAL CASE TEMPERATURE VS CONTROL RESISTOR RS K T C TOL. C RS K T C TOL. C RS K T C TOL. C RS K T C TOL. C TYPICAL HEATER POWER AT TURN ON vs. POWER SUPPLY VOLTAGE 4.00 3.50 POWER (WATTS) AT TURN ON 3.00 2.50 2.00 1.50 1.00 0.50 0.00 0.0 20.0 40.0 60.0 80.0 SUPPLY VOLTAGE (VOLTS) MAXIMUM HEATER TURN ON CURRENT vs. POWER SUPPLY VOLTAGE 140 360.1 340.6 322.3 305.0 288.7 273.4 259.0 245.4 232.5 220.4 209.0 198.3 188.1 178.5 169.4 160.8 152.7 145.1 137.8 131.0 124.5 118.3 112.5 107.0 101.8 96.9 92.2 87.8 83.6 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 79.6 75.8 72.2 68.8 65.5 62.5 59.5 56.8 54.1 51.6 49.2 46.9 44.8 42.7 40.7 38.9 37.1 35.4 33.8 33.8 30.8 29.4 28.1 26.8 25.5 24.4 23.2 22.2 21.2 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 47 49 50 51 52 53 54 55 56 57 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 20.2 19.3 18.4 17.5 16.7 15.9 15.2 14.5 13.8 13.2 12.5 11.9 11.4 10.8 10.3 9.8 9.3 8.9 8.4 8.0 7.6 7.2 6.8 6.5 6.1 5.8 5.5 5.2 4.9 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 3.0 3.0 3.0 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5. 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 4.6 4.4 4.1 3.9 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.68 1.52 1.37 1.23 1.09 0.95 0.82 0.70 0.58 0.46 0.35 0.25 0.14 0.04 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 The temperature of the DN511 is supplied with four 3 inch #32 gage magnet wire as shown below. Temperature of the DN511 can be set at the factory on request PIN 1 TYPICAL HEATER 3.0" 0.25" 120 Therm Optics DN511 MAXIMUM HEATER CURRENT (mA) xxxx 100 80 #32 GAGE MAGNET WIRE (4 PLACES) 0805 1% TEMPERATURE SET RESISTOR ON REQUEST 60 It is recommended that the DN511 heater be attached to the device being heated with a thermally conductive adhesive such as Loctite(R) 384. This will insure that there is minimum thermal resistance between the two surfaces. 40 This graph shows the range of D.C. current that flows through the heater before temperature control occurs. 0 10 20 30 40 50 60 70 20 POWER SUPPLY VOLTAGE (VOLTS D.C.) TM Last Updated 6/25/01 1004 Mallory Way * Carson City, NV 89701 * Phone: 775-882-7721 * Fax: 775-882-7675 * E-mail: info@thermoptics.com * http://www.thermoptics.com Page 2 |
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