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Li-ion Battery Charger IC
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TC7710WBG 2.0A USB Ready LI-ION Battery Charger IC for Fast Charging of Portable Devices

Today's rechargeable battery technology is lagging behind advancing processor technology. As a result, current charger solutions require users to charge their smart phones and other mobile devices more frequently, or for longer periods of time. The Toshiba TC7710WBG charger IC solves this problem through its efficient switching regulator core that maximizes power efficiency, passive component sizes and thermal management for heat dissipation. The device is a programmable lithium-ion and lithium-polymer battery charger, and leverages the Toshiba 0.13um mixed-signal process to achieve one of the lowest Rdson*Qg characteristics in the industry. It delivers optimum charging of batteries and is well suited for demanding DC-DC converter applications.

 
Features

  • The new charger IC is designed with a highly efficient DC/DC buck regulator that handles up to 2.0A of charging current.

 
  • Supports the USB On-The-Go (OTG) standard to power a peripheral USB device.
  • TC7710WBG is processed in advanced 0.13um mixed signal process and packaged in a compact WCSP (2.5mm x 2.5 mm) package that boosts cost-performance.
  • The 3MHz switching frequency is set high to reduce the passive components value and therefore their form factors, saving board real estate.
  • The device can reach peak efficiency above 90 percent, again leveraging the Toshiba 0.13um mixed-signal technology.
  • 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 not only steps down the source voltage to the desirable voltage for the battery, but also controls the charging profiles dynamically to optimize the charging duration and operation reliability.

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