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BQ25570

AKTIV

Extrem energieeffizientes Boost-Ladegerät mit Nanopower-Abwärtswandler für Anwendungen mit Energiege

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Datenblatt

BQ25570

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Number of series cells 1 Charge current (max) (A) 0.1 Vin (max) (V) 5.1 Cell chemistry Li-Ion/Li-Polymer, SuperCap Battery charge voltage (min) (V) 2.2 Battery charge voltage (max) (V) 5.5 Absolute max Vin (max) (V) 5.5 Control topology Switch-Mode Boost Control interface Standalone (RC-Settable) Features Input OVP, Solar input/MPPT Vin (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 125
Number of series cells 1 Charge current (max) (A) 0.1 Vin (max) (V) 5.1 Cell chemistry Li-Ion/Li-Polymer, SuperCap Battery charge voltage (min) (V) 2.2 Battery charge voltage (max) (V) 5.5 Absolute max Vin (max) (V) 5.5 Control topology Switch-Mode Boost Control interface Standalone (RC-Settable) Features Input OVP, Solar input/MPPT Vin (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 125
VQFN (RGR) 20 12.25 mm² 3.5 x 3.5
  • 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, Super-capacitors, or Conventional Capacitors
  • Battery Charging and Protection
    • Internally Set Undervoltage Level
    • User Programmable Overvoltage Levels
  • 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
  • Programmable Step Down Regulated Output (Buck)
    • High Efficiency up to 93%
    • Supports Peak Output Current up to 110 mA (typical)
  • Programmable Maximum Power Point Tracking (MPPT)
    • Provides Optimal Energy Extraction From a Variety of Energy Harvesters including Solar Panels, Thermal and Piezo Electric Generators
  • 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, Super-capacitors, or Conventional Capacitors
  • Battery Charging and Protection
    • Internally Set Undervoltage Level
    • User Programmable Overvoltage Levels
  • 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
  • Programmable Step Down Regulated Output (Buck)
    • High Efficiency up to 93%
    • Supports Peak Output Current up to 110 mA (typical)
  • Programmable Maximum Power Point Tracking (MPPT)
    • Provides Optimal Energy Extraction From a Variety of Energy Harvesters including Solar Panels, Thermal and Piezo Electric Generators

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. 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 buck converter for providing a second power rail to systems such as wireless sensor networks (WSN) which have stringent power and operational demands. All the capabilities of bq25570 are packed into a small foot-print 20-lead 3.5-mm x 3.5-mm QFN package (RGR).

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. 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 buck converter for providing a second power rail to systems such as wireless sensor networks (WSN) which have stringent power and operational demands. All the capabilities of bq25570 are packed into a small foot-print 20-lead 3.5-mm x 3.5-mm QFN package (RGR).
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Technische Dokumentation

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Typ Titel Datum
* Data sheet bq25570 nano power boost charger and buck converter for energy harvester powered applications datasheet (Rev. G) PDF | HTML 06 Mär 2019
Technical article How energy harvesting can extend the life of your fault indicator on the grid PDF | HTML 18 Okt 2017
White paper Cities grow smarter through innovative semiconductor technologies 07 Jul 2017
Technical article Trends in building automation: predictive maintenance PDF | HTML 01 Nov 2016
Technical article Let’s harvest that energy with MSP430™ FRAM microcontrollers PDF | HTML 24 Feb 2016
Technical article Energy harvesting solutions enable expanded 4-20mA current loop functionality PDF | HTML 04 Feb 2016
Technical article The secrets of energy harvesting: The sloth and the bear PDF | HTML 29 Sep 2015
User guide User's Guide for bq25570 Battery Charger Evaluation Module for Energy Harvesting (Rev. A) 23 Aug 2014
Product overview Battery Management Solutions for Wearable and Fitness Devices (Rev. C) 18 Aug 2014
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 22 Jan 2014
Product overview Industry’s Most Efficient Nano Power Harvesting Solutions (Rev. A) 08 Nov 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BQ25570EVM-206 — Evaluierungsmodul für extrem energiesparenden Power-Management-IC mit Schnelllader und Abwärtswandle

The bq25570 evaluation module (EVM) is a complete module for evaluating the bq25570 energy harvesting charger for storage elements like single-cell Li-Ion/Polymer batteries or super-capacitors. Intended to be powered by high impedance supplies, such as solar panels, thermo-electric generators (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Codebeispiel oder Demo

SLUC461 — Solar App Design Example V1.3, bq25570

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Berechnungstool

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TIDA-00649 — 4-mA- bis 20-mA-Schleifen-Energy Harvester – Referenzdesign

The TIDA-00649 reference design demonstrates energy harvesting from 4-mA to 20-mA loop-powered systems. The design is simple to insert into existing installations where it scavenges energy from the loop and generates a regulated output voltage. Furthermore, the circuit provides an analog output (...)
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This reference design implements a secondary thermal monitoring solution for large scale battery packs. Many industry guidelines require the secondary temperature system to remain powered and operational in the event that the primary power supply is lost. This design is capable of continuing (...)
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TIDA-00246 — Generisches Energy-Harvesting-Adaptermodul für thermoelektrische Generatoren (TEG) – Referenzdesign

This reference design aims at providing a generic solution for energy harvesting while giving a practical application application for thermoelectric generators (TEG). It is a fully programmable state-machine which runs at 60nA and can enable and disable key functions as they are needed by the (...)
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Referenzdesigns

TIDA-00616 — Referenzdesign für Energiegewinnungs-LaunchPad-BoosterPack für Gleichstrom-Bürstenmotorsteuerung

Das Energiegewinnungs-LaunchPad für die bürstenbehaftete Gleichstrom-Motorsteuerung wurde entwickelt, um einen Li-Ionen- oder Li-Polymer-Akku mit Solarenergie aufzuladen. Anschließend wird ein Spannungsregler verwendet, um sekundäre Systemleistung für ein TI LaunchPad und alle Peripheriegeräte, die (...)
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TIDA-00588 — Referenzdesign für Energiegewinnungs-BoosterPack

The TIDA-00588 reference design is a BoosterPack that harvests energy from a wide variety of current sources or from the onboard solar cells to power any low-power TI LaunchPad. This design is a highly integrated power management solution that is well-suited for ultra-low power applications.

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Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00242 — Referenzdesign für eine auf Solarenergie basierende Lösung zur Energiegewinnung unter Verwendung ein

This reference design is a solar charger and energy harvester using a highly integrated power management solution that is well-suited for ultra-low power applications. The product is specifically designed to efficiently acquire and manage the microwatts (μW) to milliwatts (mW) needed to (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN (RGR) 20 Ultra Librarian
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Bestellen & Qualität

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  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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  • Montagestandort

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