ramack
Newbie level 3
Powermanagement
Hi,
I am looking for a simple solution to switch power on and off using a pushbutton. I have to following requirements:
- low power in standby/off
- use a pushbutton to switch on
- to switch off the uC pulls an GPIO low, or the on/off pushbutton is pressed for a few seconds
- the powerswitch shall have low on-resistance
- the switch shall provide at least 500mA current
- two power sources shall be used (battery or wall power supply); use the battery only, if the other supply is not available
- would be nice, if a battery charger would be integrated
- would be even nicer, if 3 power supplies are nicely supported (USB or external power)
Does anyone have an idea? I am looking for integrated circuit, for this task.
Regards,
Rapha
Hi,
I am looking for a simple solution to switch power on and off using a pushbutton. I have to following requirements:
- low power in standby/off
- use a pushbutton to switch on
- to switch off the uC pulls an GPIO low, or the on/off pushbutton is pressed for a few seconds
- the powerswitch shall have low on-resistance
- the switch shall provide at least 500mA current
- two power sources shall be used (battery or wall power supply); use the battery only, if the other supply is not available
- would be nice, if a battery charger would be integrated
- would be even nicer, if 3 power supplies are nicely supported (USB or external power)
Does anyone have an idea? I am looking for integrated circuit, for this task.
Regards,
Rapha