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TMP12FP Arkusz danych(PDF) 5 Page - Analog Devices |
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TMP12FP Arkusz danych(HTML) 5 Page - Analog Devices |
5 / 14 page TMP12 REV. 0 –5– HEATER RESISTOR POWER DISSIPATION – mW 35 30 0 0 50 100 150 200 20 15 10 5 25 AIR FLOW RATES V = 5V SO–8 SOLDERED TO .5 " .3" Cu PCB 250 a. 0 FPM c. 450 FPM b. 250 FPM d. 600 FPM a b c d Figure 1. SOIC Junction Temperature Rise vs. Heater Dissipation HEATER RESISTOR POWER DISSIPATION – mW 25 20 0 0 250 50 100 150 200 15 10 5 AIR FLOW RATES V = 5V PDIP SOLDERED TO 2" 1.31" Cu PCB a. 0 FPM c. 450 FPM b. 250 FPM d. 600 FPM a b c d Figure 2. PDIP Junction Temperature Rise vs. Heater Dissipation TIME – sec 25 20 0 15 10 5 30 35 40 45 50 55 60 65 70 0 10 20 30 40 50 60 70 80 90 100 110 120 130 V = 5V RHEATER TO EXTERNAL SUPPLY TURNED ON @ t = 5 sec SO–8 SOLDERED TO .5" .3" COPPER PCB PDIP SOLDERED TO 2" 1.31 COPPER PCB a. SO–8, HTR @ 5V b. PDIP, HTR @ 5V c. SO–8, HTR @ 3V d. PDIP, HTR @ 3V a b c d Figure 3. Junction Temperature Rise in Still Air TRANSITION FROM 100 °C STIRRED BATH TO FORCED 25 °C AIR V = 5V, NO LOAD, HEATER OFF SO–8 SOLDERED TO .5" .3" Cu PCB PDIP SOLDERED TO 2" 1.31" Cu PCB AIR VELOCITY – FPM 140 0 0 700 100 200 300 400 500 600 120 80 60 40 20 100 a. PDIP PCB b. SOIC PCB a b Figure 4. Package Thermal Time Constant in Forced Air TIME – sec 80 30 0 02 46 8 10 12 14 16 18 20 70 40 20 10 60 50 90 100 110 120 V = 5V, NO LOAD, HEATER OFF SO–8 SOLDERED TO .5" .3" Cu PCB PDIP SOLDERED TO 2" 1.31" Cu PCB a. SO–8 PCB b. PDIP PCB a b TRANSITION FROM STILL 25 °C AIR TO STIRRED 100 °C BATH Figure 5. Thermal Response Time in Stirred Oil Bath TEMPERATURE – °C 102 99.5 98 -75 -25 25 75 125 175 101.5 100 99 98.5 101 100.5 V+ = +5V Figure 6. Heater Resistance vs. Temperature |
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