AN4365 Datasheet, PDF (1/35 Pages) STMicroelectronics – Using STM32F4 MCU power modes with best dynamic efficiency

AN4365
Application note
Using STM32F4 MCU power modes with best dynamic efficiency
Introduction
Power consumption presents a major challenge for recent embedded applications.
This application note is split into two main parts:
• The first part describes how to best configure the STM32F4 power modes and
measure the corresponding current consumptions specified in the datasheet.
• The second part describes a use case that highlights the power efficiency of STM32F4
for the competitive applications of the embedded system market.
This application note is provided with the STSW-STM32142 firmware package that contains
two projects:
• STM32F4_Current_Consumption_Measuring: gives a measuring application that can
be customized to measure the current consumption of different STM32F4 power
modes, and shows how to best configure the system for each mode.
• STM32F4_Low_Power_Application_Case: this is an example of an application based
on the ADC, I2C and DMA peripherals using STM32F4 low-power modes and features.
For more details about these examples, please refer to the “readme” files inside this
firmware package.
Type
Microcontrollers
Firmware
Table 1. Applicable products and tools
Part numbers
STM32F401 line
STM32F405/415 line
STM32F407/417 line
STM32F427/437 line
STM32F429/439 line
STSW-STM32142
May 2014
DocID025303 Rev 2
1/35
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