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Tiny USB Battery Charger Detectors Target a Universal Charging Experience

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A pair of very small USB battery charger detectors is compliant with the USB Battery Charging Specification. These devices detect USB standard downstream ports (SDPs), USB charging downstream ports (CDPs), or dedicated charger ports (DCPs), in addition to proprietary charger adapters from Apple and Sony. When a charging port is detected, the MAX14578E/MAX14578AE from Maxim Integrated Products will control an external lithium-ion (Li+) battery charger controller to optimize charge time and charging efficiency. 

By supporting a broad range of USB chargers, the MAX14578E/MAX14578AE offer consumers a “virtually universal” charging experience. Manufacturers can now also ship equipment without including power adapters, so they simplify their manufacturing supply chain while improving their green credentials.

An on-chip LDO provides a 5.3V output that can be used to power a USB transceiver. In addition, ESD protection on the USB data pins is extended up to ±15kV (Human Body Model) and ±8kV IEC 61000-4-2 Contact Discharge. These features substantially reduce system complexity, component cost and board space for today’s highly integrated consumer devices.

The MAX14578E/MAX14578AE are available in a 12-bump, 0.4 mm pitch, 1.3 mm x 1.68 mm WLP package for space-critical applications, and in a 16-pin TQFN package for ease of manufacturing. They operate over the -40° to +85°C extended temperature range.

Maxim Integrated Products, Sunnyvale, CA. (408) 774-9139. [www.maxim-ic.com].