Power management

How long will STTH810D diode last at Tj = 126degC?

We are using the STTH810D in our new 60W offline  Flyback LED driver. It is dissipating 4W. We measured its metal tab as operating at 115degC. Therefore its junction is operating at 126degC.This product is supposed to operate for 8 hours per night , ...

We are using the STTH810D in our new 60W offline Flyback LED driver. It is dissipating 4W. We measured its metal tab as operating at 115degC. For how many years do you think this diode will last?

L6480 best driving (from motor motion perspective) strategy question

Hi all,I'm developing a bipolar stepper motor application by means of a STEVAL-PCC009V2 + EVAL6480H boards coupled together.My application have to follow a position by means of an incremental encoder that is connected to the encoder quadrature module...

EVAL6480H-DISC

Posted on December 18, 2014 at 17:57Hi,does anyone know when the EVAL6480H-DISC will be available in the UK? Also will it be cheaper than the EVAL6480H evaluation board?Thanks in advance,Howard Smith #eval6480h #eval6480h-disc #l6480

L6591 issue

Hi at everyone,I designed a open loop dc/ac converter, but I met a big problem. The high side output did'nt work correctly over the 40V of Vhv. Over that value the output goes out derivates and the resistance from pin 14 and pin 13 is 5ohm. Aflter a ...

Choosing a reliable DC / DC converter to power the controller (12V / 5V)

Hi!I design a board on which there will be several microcontrollers (STM32 and ATMEGA328), 12V comes on the board and I need to lower this voltage to 5V. In addition to the controllers, I will power a few more sensors and LEDs.I am trying to find a r...

Using minishell in STSW-STPM003

STPM32 Power meter with load relays on both mains lines

Hi, I'm trying to build a power meter that has the ability to switch on and off the attached load.The power supply for the design is created using Viper26LD in buck mode, the processor used to control the design is STM32L051. The entire design analog...

Converts DC-DC PV in series

Hi, I have questions about how serial DC-DC converters work for photovoltaic systems. For, the current in the output tends to be different due to MPPT, which would be several sources of current in series. I read the manual that explains the SPV1020, ...

We use viber06L in new product design and need to complete simulation using a free Spice tool but the provided model is encrypted Please send me the one that can be imported to free Tools