The SMB349 and SMB359 are the industry’s first monolithic 4-A Li-Ion battery charger ICs and can fast-charge high capacity batteries for smart phones and tablets. They are configurable and deliver up to 4-A charging/system current while accepting from +3.6 to +16-V input voltage. The SMB349 incorporates the CurrentPath technology with dual system/battery outputs (for instant-on with discharged or missing battery), while the SMB359 provides a single output.
Both battery charger ICs include the FlexCharge automatic power source detection and patented FlexCharge+ automatic input voltage detection technologies to support universal USB/ac battery charging. The devices comply with industry standards like USB2.0/3.0/BC1.2. They feature the patented TurboCharge high-efficiency switch-mode charger, TurboCharge+ automatic float voltage compensation and OptiCharge automatic input current limit technologies, combined with SafeCharge JEITA/IEEE1725 for battery safety support. They target portable devices including smartphones, tablets, ultrabooks, digital camcorders, portable media players, and portable game consoles/controllers. The battery chargers are offered in 2.96 x 3.16–mm, 49–ball, lead-free chip-scale packaging (CSP) or 5 x 5–mm 40–pin QFN packages. Both products have an operating temperature range of –30° to +85°C. (Ea/10,000: CSP, $1.62 and QFN, $1.82 — available now.)
By Paul O’Shea
Summit Microelectronics , Sunnyvale , CA , United States
Information 408-523-1000
http://www.summitmicro.com
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