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STM32G474PBY3TR Datasheet(PDF) 229 Page - STMicroelectronics |
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STM32G474PBY3TR Datasheet(HTML) 229 Page - STMicroelectronics |
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229 / 236 page  DS12288 Rev 5 229/236 STM32G474xB STM32G474xC STM32G474xE Package information 232 6.10 Thermal characteristics The maximum chip-junction temperature, TJ max, in degrees Celsius, may be calculated using the following equation: TJ max = TA max + (PD max x ΘJA) Where: • TA max is the maximum ambient temperature in °C, • ΘJA is the package junction-to-ambient thermal resistance, in °C/W, • PD max is the sum of PINT max and PI/O max (PD max = PINT max + PI/Omax), • PINT max is the product of IDD and VDD, expressed in Watts. This is the maximum chip internal power. PI/O max represents the maximum power dissipation on output pins where: PI/O max = Σ (VOL × IOL) + Σ ((VDDIOx – VOH) × IOH), taking into account the actual VOL / IOL and VOH / IOH of the I/Os at low and high level in the application. Table 123. Package thermal characteristics Symbol Parameter Value Unit ΘJA Thermal resistance junction-ambient LQFP128 - 14 × 14 mm 43.0 °C/W Thermal resistance junction-ambient LQFP100 - 14 × 14 mm 46.2 Thermal resistance junction-ambient LQFP80 - 12 × 12 mm 46.8 Thermal resistance junction-ambient LQFP64 - 10 × 10 mm 47.9 Thermal resistance junction-ambient LQFP48 - 7 × 7 mm 55.2 Thermal resistance junction-ambient TFBGA100 - 8 × 8 mm 30.8 Thermal resistance junction-ambient UFBGA121 - 6 × 6 mm TBD Thermal resistance junction-ambient UFQFPN48 - 7 × 7 mm 26.8 Thermal resistance junction-ambient WLCSP81 - 4.02 X 4.27 mm 45 |
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