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TSH690 датащи(PDF) 3 Page - STMicroelectronics |
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TSH690 датащи(HTML) 3 Page - STMicroelectronics |
3 / 14 page TSH690 3/14 ELECTRICAL DC CHARACTERISTICS Tamb = 25°C, V CC connected to Vbias, ZL = 50Ω (unless otherwise specified) TSH690 DISSIPATION CONSIDERATIONS In order to respect the dissipation limitation of the package, you should consider the following equa- tion: with: R th(j-a) = junction ambient thermal resistance T j (°C) = max. junction temperature (150°C) T amb (°C) = ambient temperature Pd (W) = maximum dissipated power The respect of this condition forms a safe area on the following figure: Figure 1 : Dissipation capability vs T ambient If VBIAS is DC connected to VCC, the operating temperature can be directly determined without determining ICC, thanks to the direct reading curve: Figure 2 : Maximum Tamb vs VCC In applications using a duty cycle, the average dis- sipation is less than in continuous mode. The fol- lowing figure gives the relation beetween the dis- sipated power and the duty cycle. Figure 3 : Dissipation vs Duty cycle Parameter Min. Typ. Max. Unit Supply Current Vcc = 2V Vcc = 2.7V Vcc = 3V Vcc = 4V Vcc = 5V 33 29 46 53 79 105 mA Rth-(j-a): Junction Ambient Thermal Resistance for SO-8 Package 140 180 °C/W T j - Tamb = Pd • Rth(j-a) -40 -30 -20 -10 0 102030 40 5060708090 0 100 200 300 400 500 600 700 800 900 SAFE AREA V BIAS = V CC R TH = 180°C/W T AMB (°C) 01 23456 0 20 40 60 80 100 120 140 160 SAFE AREA V BIAS =V CC R THmax =180°C/W V CC (V) 0 102030405060 708090 100 0 100 200 300 400 500 600 700 800 900 V CC = 5V V CC = 4V V CC = 3V V CC = 2V Pd = V CC x I CC x Duty Cycle Duty Cycle(%) |
Аналогичный номер детали - TSH690_01 |
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Аналогичное описание - TSH690_01 |
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