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bq25505 - ultra low-power boost charger

Description

The bq25505 device is specifically designed to efficiently extract the microwatts (µW) to miliwatts (mW) of power generated from a variety of DC energy harvesting, high-impedance sources like photovoltaic (solar) or thermal electric generators (TEGs) without collapsing those sources.

Features

  • 1 Ultra Low-Power With High-Efficiency DC-DC Boost Charger.
  • Cold-Start Voltage: VIN ≥ 600 mV.
  • Continuous Energy Harvesting From Input Sources as Low as 100 mV.
  • Ultra-Low Quiescent Current of 325 nA.
  • Input Voltage Regulation Prevents Collapsing High-Impedance Input Sources.
  • Ship Mode With < 5 nA From Battery.
  • Energy Storage.
  • Energy can be Stored to Rechargeable Li-Ion Batteries, Thin-Film Batteries, SuperCapacitors, or Conven.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community bq25505 SLUSBJ3F – AUGUST 2013 – REVISED MARCH 2019 bq25505 ultra low-power boost charger with battery management and autonomous power multiplexer for primary battery in energy harvester applications VRDIV VBAT_OV OK_PROG OK_HYST Efficiency (%) 1 Features •1 Ultra Low-Power With High-Efficiency DC-DC Boost Charger – Cold-Start Voltage: VIN ≥ 600 mV – Continuous Energy Harvesting From Input Sources as Low as 100 mV – Ultra-Low Quiescent Current of 325 nA – Input Voltage Regulation Prevents Collapsing High-Impedance Input Sources – Ship Mode With < 5 nA From Battery • Energy Storage – Energy can be Stored to Rechargeable Li-Ion Batteries, Thin-Film Batteries, SuperCapacitors, or Conventional Capacitors •
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