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bq25570 - nano power boost charger and buck converter

Description

The bq25570 device is specifically designed to efficiently extract microwatts (µW) to milliwatts (mW) of power generated from a variety of high output impedance DC sources like photovoltaic (solar) or thermal electric generators (TEG) without collapsing those sources.

Features

  • 1 Ultra Low Power DC-DC Boost Charger.
  • Cold-Start Voltage: VIN ≥ 600 mV.
  • Continuous Energy Harvesting From VIN as low as 100 mV.
  • Input Voltage Regulation Prevents Collapsing High Impedance Input Sources.
  • Full Operating Quiescent Current of 488 nA (typical).
  • Ship Mode with < 5 nA From Battery.
  • Energy Storage.
  • Energy can be Stored to Re-chargeable Li-ion Batteries, Thin-film Batteries, Supercapacitors, or Conventional Capacito.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community bq25570 SLUSBH2G – MARCH 2013 – REVISED MARCH 2019 bq25570 nano power boost charger and buck converter for energy harvester powered applications VRDIV VBAT_OV OK_PROG OK_HYST VOUT_SET Efficiency (%) 1 Features •1 Ultra Low Power DC-DC Boost Charger – Cold-Start Voltage: VIN ≥ 600 mV – Continuous Energy Harvesting From VIN as low as 100 mV – Input Voltage Regulation Prevents Collapsing High Impedance Input Sources – Full Operating Quiescent Current of 488 nA (typical) – Ship Mode with < 5 nA From Battery • Energy Storage – Energy can be Stored to Re-chargeable Li-ion Batteries, Thin-film Batteries, Supercapacitors, or Conventional Capacitors • Battery Charging and Protection – Internally Set Undervoltag
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