参数资料
型号: STM32F105VCT7TR
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, ROHS COMPLIANT, LQFP-100
文件页数: 77/95页
文件大小: 1007K
代理商: STM32F105VCT7TR
STM32F105xx, STM32F107xx
Package characteristics
Doc ID 15274 Rev 4
79/95
6.2
Thermal characteristics
The maximum chip junction temperature (TJmax) must never exceed the values given in
Table 9: General operating conditions on page 34.
The maximum chip-junction temperature, TJ max, in degrees Celsius, may be calculated
using the following equation:
TJ max = TA max + (PD max × JA)
Where:
G
TA max is the maximum ambient temperature in C,
G
JA is the package junction-to-ambient thermal resistance, in C/W,
G
PD max is the sum of PINT max and PI/O max (PD max = PINT max + PI/Omax),
G
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 = (VOL × IOL) + ((VDD – VOH) × IOH),
taking into account the actual VOL / IOL and VOH / IOH of the I/Os at low and high level in the
application.
6.2.1
Reference document
JESD51-2 Integrated Circuits Thermal Test Method Environment Conditions - Natural
Convection (Still Air). Available from www.jedec.org.
Table 59.
Package thermal characteristics
Symbol
Parameter
Value
Unit
JA
Thermal resistance junction-ambient
LQFP100 - 14 × 14 mm / 0.5 mm pitch
46
°C/W
Thermal resistance junction-ambient
LQFP64 - 10 × 10 mm / 0.5 mm pitch
45
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