Technology Front
The Industry's First Dual-Mode Battery Charge ICs
Published: Dec 29,20173872 Read
ROHM has recently announced the availability of dual-input boost-buck charging ICs that support 1 to 4 battery cells for notebook PCs, smartphones, and power banks that utilize the latest charging technologies such as wireless and USB Power Delivery (USBPD).
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The BD99954GW/MUV generates a charging voltage from 3.07 to 19.2V for 1 to 4 cells through boost-buck control for USBPD. In addition, the industry's first dual-input charging system automatically switches charging operation without an MCU using an original built-in charging adapter function. And support is provided for both USBPD and USB BC 1.2. This facilitates configuration of dual-mode systems capable of simultaneous charging via USBPD, wirelessly, or from an AC adapter.
In response, combining its USBPD IC with proprietary semiconductor technologies allowed ROHM to meet these needs and develop dual-input charging ICs that support both USBPD and wireless protocols in a single package.
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