Intersil Corporation has introduced the ISL9220, a battery charger. The device is based on a switched-mode topology, claimed to ensure high operating efficiency and low power dissipation for one-cell and two-cell Li-ion and Li-polymer based portable applications such as smartphones and tablet computers. The device reduces heat using synchronous pulse width modulation with integrated MOSFETs. The battery's 1.2MHz switching frequency allows engineers to use of small external inductors and capacitors. The charger provides up to 2A charge current. Programmable input current limiting is included along with programmable pre-charge and fast charge settings. Safety features include an integrated overvoltage protection and a programmable safety timer. Electronica Hall A4: stand 207
