STM32F301R6 查看數據表（PDF） - STMicroelectronics
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STM32F301R6
STMicroelectronics
STM32F301R6 Datasheet PDF : 135 Pages
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STM32F301x6 STM32F301x8
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Example 2: High-temperature application
Using the same rules, it is possible to address applications that run at high ambient
temperatures with a low dissipation, as long as junction temperature TJ remains within the
specified range.
Assuming the following application conditions:
Maximum ambient temperature TAmax = 115 °C (measured according to JESD51-2),
IDDmax = 20 mA, VDD = 3.5 V, maximum 9 I/Os used at the same time in output at low
level with IOL = 8 mA, VOL= 0.4 V
PINTmax = 20 mA × 3.5 V= 70 mW
PIOmax = 9 × 8 mA × 0.4 V = 28.8 mW
This gives: PINTmax = 70 mW and PIOmax = 28.8 mW:
PDmax = 70 + 28.8 = 98.8 mW
Thus: PDmax = 98.8 mW
Using the values obtained in Table 80 TJmax is calculated as follows:
– For LQFP100, 45°C/W
TJmax = 115°C + (45°C/W × 98.8 mW) = 115 °C + 4.44°C = 119.44°C
This is within the range of the suffix 7 version parts (–40 < TJ < 125 °C).
In this case, parts must be ordered at least with the temperature range suffix 7 (see
Section 8: Ordering information).
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