The BQ2954SN: ROHS3 compliance is confirmed, covering EU and global environmental requirements without a waiver.
Li-Ion charging with programmable current
Designed for Lithium Ion battery chemistry, the BQ2954SN implements constant-current charging — the CC phase of the standard CC/CV profile used by Li-Ion cells. The charge current is programmable, so you can set the rate to match the battery capacity without changing the IC — a single BOM line serves multiple pack sizes by adjusting one resistor. Maximum supply voltage is 5.5 V, meaning a standard 5 V USB rail or a regulated 5 V adapter is the right input; a 12 V supply needs a pre-regulator.
Surface-mount assembly with Tube packaging — the Tube is a standard anti-static shipping format for SOIC, suitable for pick-and-place feeders with tube-to-tape conversion.