Smart charger for 2-cell SMBus packs
The LTC1960CG#TRPBF from Analog Devices is a smart battery charger IC designed for 2-cell packs using the Smart Batteries (SMBus) protocol. It handles charge management for a pair of series cells, with an SPI interface for host communication and over-current fault protection. The part operates from a supply up to 28V and is specified over the 0°C to 70°C commercial temperature range.
Supply headroom and protection
The 28V max supply voltage gives enough headroom to charge a 2-cell stack from a typical 19V or 24V input rail. Over-current protection is built in, so an external fuse or current-sense resistor may be simplified on the BOM. The SPI bus lets a host microcontroller set charge parameters and monitor status — useful for systems that log battery health or enforce charge profiles.
Lifecycle and compliance
The LTC1960CG#TRPBF is listed as Active — no end-of-life notice, no last-time-buy window. It is ROHS3 compliant, so it passes the material declaration for EU and other regulated markets. The Tape & Reel variant (TR suffix) is the standard production reel; Cut Tape (CT) is also available for prototyping or small runs.
