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10-31-2016

Industry First Intelligent Charge Controller from ON Semiconductor Meets the Exacting Demands of Next Generation Power Banks

ON Semiconductor » LC709501F

Offering an intelligent feature set along with best-in-class integration to simplify and accelerate time to market

ON Semiconductor introduced a highly integrated single chip power bank solution for the development of next generation Li-Ion powered products. The LC709501F total Li-Ion battery solution offers broad power and voltage/current output range of 5 volt (V), 9 V and 12 V operation, with a maximum charge/discharge capability of up to 30 watts (W) through simple FET selection.

ON Semiconductor - LC709501F

The LC709501F determines what type of device is connected and automatically selects the fastest available method for charging. Advanced users can even reprogram the LC709501F to support custom charge/discharge profiles, as well as USB Type-C and PD Policy Engine functions. This single-chip solution includes integrated fuel gauge function, configurable I/O, LED drivers, I2C interface, and pre-drivers for external power MOSFETs, providing system flexibility. A design reference kit is available to realize fast time to market. The LC709501F supports various output power levels up to 30 W, by changing external MOSFETs. In addition, there is an integrated USB 2.0 Full Speed host controller.

The LC709501F Reference board
The LC709501F Reference board.

The LC709501F’s USB host controller supports connectivity with iOS and Android apps that enable the device to communicate with the connected smartphone and subsequently make use of its display to show information concerning the battery health and the charging process (charging time, battery life, number of charging cycles completed, etc.). The device works with the proprietary charging protocols (such as Fast Charge and Qualcomm® Quick Charge™) now being utilized by smartphone manufacturers to accelerate the charging period. To ensure operational longevity, over-current, over-voltage, and redundant battery protection mechanisms are all included, as well as a thermistor for monitoring of temperature levels. The LC709501F supports an operational temperature range of –40 °C to +85 °C.

Packaging and Pricing

The LC709501F is offered in a QFN-52 (6 × 6 mm) package and priced at $2.80 per unit in 10,000 unit quantities.

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