BQ25570 Energy Harvester Module

Energy Harvester Module based on BQ25570 Ultra Low Power DC to DC Boost converter

The BQ25570 IC from Texas Instrument is a Nano Power Boost Charger and Buck Converter. This module is based on BQ25570 IC which 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. The battery management  features ensure that a rechargeable battery is not overcharged by this extracted power, with voltage boosted, or depleted beyond safe limits by a system load. In addition to the highly efficient boosting charger, the bq25570 integrates a highly efficient, nano- power Loads buck converter for providing a second power rail to systems such as wireless sensor networks (WSN) which have stringent power and operational  demands. 

We have Various sizes of DC to DC Converter Modules. Check out our complete collection of DC to DC Converter Modules.

Features Of BQ25570 Energy Harvester Module

• Cold-start Voltage: VIN ≥ 330 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

1. Energy Storage 

• Energy can be Stored to Re-chargeable Li-ion Batteries, Thin-film Batteries, Super- 

• capacitors, or Conventional Capacitors

2. Battery Charging and Protection 

• Internally Set Undervoltage Level

• User Programmable Overvoltage Levels

3. Battery Good Output Flag 

• Programmable Threshold and Hysteresis

• Warn Attached Microcontrollers of Pending Loss of Power

• Can be Used to Enable or Disable System Loads

4. Programmable Step Down Regulated Output (Buck)

• High Efficiency up to 93%

• Supports Peak Output Current up to 110 mA (typical)

5. Programmable Maximum Power Point Tracking (MPPT)

• Provides Optimal Energy Extraction From a Variety of Energy Harvesters including Solar Panels, Thermal and Piezo Electric Generators

Applications Of BQ25570 Energy Harvester Module

• Energy Harvesting

• Solar Chargers

• Thermal Electric Generator (TEG) Harvesting

• Wireless Sensor Networks (WSN)

• Low Power Wireless Monitoring

• Environmental Monitoring

• Bridge and Structural Health Monitoring (SHM)

• Smart Building Controls

• Portable and Wearable Health Devices

• Entertainment System Remote Controls