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参数资料
型号： STM32L152CBU6TR
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, QCC48
封装： 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-48
文件页数： 5/106页
文件大小： 1417K
代理商： STM32L152CBU6TR
Package characteristics
STM32L151xx, STM32L152xx
102/106
Doc ID 17659 Rev 1
7.2.2
Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the ordering
information scheme shown in Table 63: Ordering information scheme.
Each temperature range suffix corresponds to a specific guaranteed ambient temperature at
maximum dissipation and, to a specific maximum junction temperature.
As applications do not commonly use the STM32L15xxx at maximum dissipation, it is useful
to calculate the exact power consumption and junction temperature to determine which
temperature range will be best suited to the application.
The following examples show how to calculate the temperature range needed for a given
application.
Example 1: High-performance application
Assuming the following application conditions:
Maximum ambient temperature TAmax = 82 °C (measured according to JESD51-2),
IDDmax = 50 mA, VDD = 3.5 V, maximum 20 I/Os used at the same time in output at low
level with IOL = 8 mA, VOL= 0.4 V and maximum 8 I/Os used at the same time in output
at low level with IOL = 20 mA, VOL= 1.3 V
PINTmax = 50 mA × 3.5 V= 175 mW
PIOmax = 20 × 8 mA × 0.4 V + 8 × 20 mA × 1.3 V = 272 mW
This gives: PINTmax = 175 mW and PIOmax = 272 mW:
PDmax = 175 + 272 = 447 mW
Thus: PDmax = 447 mW
Using the values obtained in Table 62 TJmax is calculated as follows:
–
For LQFP100, 46 °C/W
TJmax = 82 °C + (46 °C/W × 447 mW) = 82 °C + 20.6 °C = 102.6 °C
This is within the range of the suffix 6 version parts (–40 < TJ < 105 °C).
In this case, parts must be ordered at least with the temperature range suffix 6 (see
Table 63: Ordering information scheme).
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 20 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 = 20 × 8 mA × 0.4 V = 64 mW
This gives: PINTmax = 70 mW and PIOmax = 64 mW:
PDmax = 70 + 64 = 134 mW
Thus: PDmax = 134 mW
相关PDF资料
PDF描述
STM32L152R8H6DTR 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PBGA64
STM32L152R8T6D 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP64
STM32L152R8T6TR 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP64
STM32L152R8T6 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP64
STM32L152RBH6 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PBGA64
相关代理商/技术参数
参数描述
STM32L152CCT6 制造商:STMicroelectronics 功能描述:IC MCU ARM 256K FLASH 48LQFP 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 32MHZ, LQFP-48, Controller Family/Series:STM32L, Core Siz 制造商:STMicroelectronics 功能描述:16/32-BITS MICROS
STM32L152C-DISCO 功能描述:开发板和工具包 - ARM Ultra LP ARM M3 Eval 32kb Flash 32 MHz RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
STM32L152D-EVAL 功能描述:开发板和工具包 - ARM 32-Bit Arm Cortex M3 384K Flash Board RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
STM32L152D-EVAL 制造商:STMicroelectronics 功能描述:EVALUATION BOARD STM32L152ZDT6 MCU 制造商:STMicroelectronics 功能描述:EVALUATION BOARD, STM32L152ZDT6 MCU
STM32L152-EV/WS 制造商:STMicroelectronics 功能描述:Eval board for ARM cortex-M3 core-based STM32L152VBT6 MCU
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