bq25570 Overview
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.
bq25570 Key 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 Undervoltage Level