Global Sources
EE Times-India
Stay in touch with EE Times India
EE Times-India > Power/Alternative Energy
Power/Alternative Energy  

4A Li-ion charger ICs accept 3.6V-16V input

Posted: 30 May 2012     Print Version  Bookmark and Share

Keywords:Li-ion  charger  I2C 

Summit Microelectronics debuts the SMB349 and SMB359, two monolithic 4A Li-ion battery charger ICs that are fully-configurable and can deliver up to 4A charging/system current while accepting a wide +3.6 to +16V input voltage range.

The SMB349 incorporates CurrentPath technology with dual system/battery outputs (for instant-on with discharged or missing battery); and the SMB359 provides a single output. Both products feature the company's FlexCharge automatic power source detection and patented FlexCharge+ automatic input voltage detection technologies to support universal USB/AC battery charging and comply with industry standards such as USB2.0/3.0/BC1.2. They also feature Summit's TurboCharge high-efficiency switch-mode charger, TurboCharge+ automatic float voltage compensation and OptiCharge automatic input current limit technologies, combined with SafeCharge JEITA/IEEE1725 battery safety support, optimise the solution and provide the industry's fastest, safest battery charging.

Other benefits of the ICs are an I2C digital interface and non-volatile configuration for host-based control while maintaining the simplicity of stand-alone operation; CSP packaging; and minimum external components for tiny solution size.

The SMB349/359 are suited for portable applications that use high-capacity batteries, require reliable and fast charging and feature very compact industrial designs. These include smartphones, tablets, ultrabooks, digital camcorders, portable media players, and portable game consoles/controllers.

The SMB349/359 operate with an input range from +3.6V to +16V input and safely withstand continuous input over-voltage up to +20V (non-operating), while protecting downstream circuitry.

They are offered in 2.96mm x 3.16mm, 49-ball, Pb-free CSP and in 5mm x 5mm 40-pin QFN packages. Both products have an operating temperature range of –30°C to +85°C. Available now in production quantities, the SMB349 and SMB359 are priced at Rs.84.82 ($1.62) and Rs.95.29 ($1.82) for CSP and QFN respectively, each in quantities of 10,000 units.

Comment on "4A Li-ion charger ICs accept 3.6V-16..."
*  You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.


Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

Back to Top