Date: 12/08/2010

2 Amp smart Battery chargers for 1/ 2 Cell Li-Ion/Li-Polymer type in portables

Intersil has unveiled the ISL9220, a switched-mode topology based 1-cell and 2-cell Li-ion and Li-polymer battery charger IC for use in portable applications such as smartphones and tablet computers.

The ISL9220 with integrated MOSFETs operate at 1.2MHz switching frequency allowing the use of small external inductors and capacitors. The device provides up to 2A charge current and charge voltage accuracy is 0.5 percent. Programmable input current limiting is included along with programmable pre-charge and fast charge settings.

Integrated overvoltage protection on the adapter/USB power input protects both the battery and circuitry from damage due to excessive voltage on the input. A programmable safety timer is provided to terminate charging if the battery fails to charge in the programmed period. The ISL9220 can also monitor the battery temperature and discontinue charging if the temperature becomes unsafe.

Package: 4mm x 4mm 20-lead TQFN

Price: Starts at each US$2.30 for 1,000-piece quantities.

Availability: Now