How does the Xbee perform above its rated voltage of 3.3v?
I am planning to use a Lithium Ion battery so the battery voltage may be up to 4.2v.
Do I need to use an LDO regulator to drop it to 3.3v?
Or will the Xbee perform ok at 4.2v? Do I risk damage to the module?
Or any other suggested solutions?
Many thanks.
Hmm. The Manual specifies a supply voltage of 2.8-3.4V, so you’d be quite a bit over that. I don’t see a “do not exceed” table, but 4.2V sounds excessive to me.
In addition, I’m not sure you’d get reliable operation just sending a battery voltage into the XBee’s VIN even if it were an appropriate voltage level. I guess I don’t know for sure that it won’t work, but I’ve never seen a project in which someone just plugged a battery into the VIN pin. There’s always a real power supply - a regulator and a capacitor or two to provide a smooth and appropriate power source. If I were you, I’d plan to attach a Vreg and the capacitors that go with it (read the regulator’s datasheet for the full circuit).
Don't do it. Use a regulator.s_miley:
I am planning to use a Lithium Ion battery so the battery voltage may be up to 4.2v.
Don’t use that voltage… those guys are very sensible to the voltage input… that much would EASILY burn it!!!