LCD bias power ICs extends battery life, video display lifetime
EP&T MagazinePower Supply / Management Semiconductors ac-dc power supply bias LCD power
NEXPERIA NEX10000 80mA dual output LCD bias power supply and NEX10001 can deliver up to 220mA of output current series of space-saving, high-efficiency, dual-output LCD bias power supplies extend the lifetime of thin film transistor liquid crystal display (TFT-LCD) panels used in various applications including smartphones, tablets, virtual reality (VR) headsets, and LCD modules. Both devices feature I²C programmable asymmetric voltage outputs. The devices are internally compensated and require only a single inductor for both outputs, allowing for a small bill-of-material and pcb area. To minimize the amount of board area required in space-constrained applications, the NEX10000/1 are provided in a wafer level chip scale package (WLCSP) with 15 bumps and a 1.16 × 1.96 × 0.62 mm form factor, which is even smaller than standard wafer level packages.