Monitor State-Of-Charge of Small Batteries with Tiny, Ultra-Low-Power Comparators
Abstract:Many of today’s portable consumer electronic devices are powered by small button- or coin-cell batteries. Users, of course, expect long battery life and reliable charge-level information. However, it can be quite challenging to efficiently monitor the health and state-of-charge (SOC) of these batteries without significantly affecting said SOC. In this application note, learn how simple, low-power monitoring circuits for small batteries can address this challenge.
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