The LTC1960 is a highly integrated battery charger and selector intended for portable products using dual smart batteries. A serial SPI interface allows an external microcontroller to control and monitor status of both batteries. A proprietary PowerPath architecture supports simultaneous charging or discharging of both batteries. Typical battery run times are extended by 10%, while charging times are reduced by up to 50%. The LTC1960 automatically switches between power sources in less than 10µs to prevent power interruption upon battery or wall adapter removal. The synchronous buck battery charger delivers 95% efficiency with only 0.5V dropout voltage, and prevents audible noise in all operating modes. Patented input current limiting with 5% accuracy charges batteries in the shortest possible time without overloading the wall adapter. The LTC1960’s 5mm × 7mm 38-pin QFN and 36-pin narrow SSOP packages allow implementation of a complete SBS-compliant dual battery system while consuming minimum PCB area. Applications * Portable Computers * Portable Instruments * Complete Dual-Battery Charger/Selector System * Serial SPI Interface Allows External µC Control and Monitoring * Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10% * Simultaneous Dual-Battery Charging Reduces Charging Time by Up to 50% * Automatic PowerPath™ Switching in <10µs Prevents Power Interruption * Circuit Breaker Protects Against Overcurrent Faults https://elecena.pl/product/253783/dual-battery-charger-selector-with-spi-interface 2007-03-03 https://elecena.pl/product/253783/dual-battery-charger-selector-with-spi-interface 2014-06-12 https://elecena.pl/product/253783/dual-battery-charger-selector-with-spi-interface 2025-01-21