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Toshiba delivers power multiplexer ICs for mobile devices

28 Apr 2015  | Graham Prophet

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TCK32xG series

Toshiba Electronics has developed three power multiplexer ICs that are capable of switching between two different power sources, for mobile device charging applications. The TCK32xG series features small package size with improved protection features for power supplies.

TCK321G, TCK322G and TCK323G are intended for applications in the charging circuits of mobile devices that use dual-input power supply systems, consisting of AC adapters, USB or wireless charging inputs. Power source selection is possible through the ICs external signal control and through a built-in auto selection mode function which switches sources automatically according to priorities programmed in advance. Making use of a reverse blocking circuit and thermal shutdown, these new ICs have built in protection features.

Additional protection is offered by the integrated over voltage lockout (OVLO) feature with OVLO presets between 12v and 15V for the different devices. All three ICs are contained in a WCSP type package, measuring 1.9mm x 1.9mm, with 0.5mm pitch, featuring a maximum output current of 2A and a maximum input voltage of 36V.

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