The SMB339 Series programmable battery charger from Summit Microelectronics has features such as integrates additional features, such as "instant-on", even with a dead battery, and real-time charge current monitoring. The device parameters are programmable in non-volatile memory for power-up configuration, and in volatile memory for in-system adjustments via the I2C host interface. The SMB329 supports all relevant interface (USB2.0, USB OTG, USB charging) and safety (IEEE1725, JICS8714) specifications. From $1.15 each in quantities of 10,000 units.
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