Telecom Lead America: Toshiba America Electronic Components has launched its first high-current USB ready Li-Ion battery charger integrated circuit (IC) with a fast charging current up to 2.0A.
Toshiba’s new TC7710WBG charger IC is manufactured in the company’s advanced 0.13um mixed-signal process technology to achieve cost, power and form-factor efficiencies for optimum charging of batteries used in smartphones and mobile devices.
The Toshiba TC7710WBG charger IC solves the problem of having to charge smart phones and other mobile devices more frequently, or for longer periods of time through its efficient switching regulator core that maximizes power efficiency, passive component sizes and thermal management for heat dissipation.
Toshiba has designed theTC7710WBG to protect system and battery circuitry. The input current comes from a 5V USB adaptor and this voltage is delivered to the Li-Ion battery through the TC7710WBG switching regulator. It steps down the source voltage to the desirable voltage for the battery and controls the charging profiles dynamically to optimize the charging duration and operation reliability. The TC7710WBG also supports the USB On-the-Go (OTG) standard to power a peripheral USB device, (such as a pico projector), from the battery.
“The charging current capability, efficiency, and form factor of the TC7710WBG make it ideal for today’s battery hungry mobile devices,” said Andrew Burt, vice president of the analog and imaging business unit, system LSI Groupat TAEC. ”
The TC7710WBG leverages the Toshiba 0.13um mixed-signal process to achieve one of the lowest Rdson*Qg characteristics in the industry making the device well suited for demanding DC-DC converter applications where high-power density is needed. The new charger IC is designed with a highly efficient DC/DC buck regulator that handles up to 2.0A of charging current in a compact WCSP25 2.5mm x 2.5mm package.
The TC7710WBG will be available March 2013 onwards with pricing at $0.50 in thousand piece quantity. Mass production is scheduled to begin May 2013.
