xelos
Newbie level 5
Hello, I have a question on voltage stabilization and power dissipation.
I'm working on a little device, which will be powered by alkaline battery 9V. For powering my PIC, I use LM7805. And my question is about heating of LM7805. I did not yet do my PCB and I want to know must I use some radiator to dissipate the power? The current consumption of my board is about 100mA (2LEDs, PIC, CompactFlash - in writing CF can conusumpt till 90mA). Or may be I can use a resistor, before stabilisator, which will dissipate the power?
Sorry for my English.
I'm working on a little device, which will be powered by alkaline battery 9V. For powering my PIC, I use LM7805. And my question is about heating of LM7805. I did not yet do my PCB and I want to know must I use some radiator to dissipate the power? The current consumption of my board is about 100mA (2LEDs, PIC, CompactFlash - in writing CF can conusumpt till 90mA). Or may be I can use a resistor, before stabilisator, which will dissipate the power?
Sorry for my English.