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  • Power-efficient ASIC for wireless Li-Ion battery charging and power management
  • Power-efficient ASIC for wireless Li-Ion battery charging and power management

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    For use in high-reliability and long-lifetime systems, ICsense has developed a versatile power management ASIC that provides power to transceivers, digital processors and analog blocks. The ASIC can draw its power from any primary battery, from rechargeable Li-ion batteries and from wireless power transfer through inductive coupling. Li-Ion batteries are recharged through the intelligent wireless power link. To assure a long battery life, Li-Ion charging is highly accurate up to 0.1% and peak currents are minimized.

    Features:

    • Intelligent wireless power transfer and power rectification
    • High-efficiency inductive buck/boost DC-DC converter
    • Linear regulators for accurate analog and digital supplies
    • Li-Ion charge controller
    • Highly-accurate battery charging reference: 4.1V ± 10mV
    • Safety: under-/over-voltage, over-temperature protection
    • Ultralow-power sleep and storage mode
    • Sleep mode: 150nA (POR, clock, controller)
    • Storage mode: 7nA (self-discharge of battery ~100nA)
    • 0.5um CMOS technology
    • Temperature range 10°C to 60°C