![]() Leaving the diode out removes the associated voltage drop, so it is to be preferred if the regulator does not require it for reliability under all conditions. card and fob SPI Interface Max Data Transfer Rate: 10Mbit / s Dimensions: 60mm × 39mm Datasheet for the chip that. That's a poorly specified region of operation for most regulators and the diode may or may not be required depending on factors such a limits on E5V current, input capacitor type and value, and so on. nucleo-f401re price and stock Part DetailsNUCLE. ![]() The diode is a low-drop Schottky rectifier and is most likely to prevent E5V from back-feeding the regulator. Get latest price of STMicroelectronics NUCLEO-F401RE Electronic Development Board, ARM Cortex M4F,Brand - STMicroelectronics. This item has been restricted for purchase by your companys administrator. That's not a simple calculation and would require a lot of work to confirm (and it depends on the PCB construction and maximum Ta expected, as well as reliability safety factors). Embedded Development Board, Nucleo-144, STM32L552ZET6QU, STM32 Family, 32 bit, Arm Cortex-M33F MCU. It's also possible they are taking thermal limitations of the regulator into account. Also 12V is a reasonable maximum for most purposes, allowing a bit of tolerance, and it's a standard voltage for power supplies.Ĭertainly the Nucleo evaluation/development board will not be capable of safely operating from a vehicle 13.8V nominal supply because of all the protection required in such applications against transients. It's ill-advised to operate right at the maximum input voltage. ![]() It's possible they are being (just slightly) conservative. ![]()
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