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電池充電器 IC

BQ25570

現行

具升壓充電器和微功率降壓轉換器的超低功耗採集器電源管理 IC

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產品規格表

BQ25570

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet bq25570 nano power boost charger and buck converter for energy harvester powered applications datasheet (Rev. G) PDF | HTML 2019年 3月 6日
Technical article How energy harvesting can extend the life of your fault indicator on the grid PDF | HTML 2017年 10月 18日
White paper Cities grow smarter through innovative semiconductor technologies 2017年 7月 7日
Technical article Trends in building automation: predictive maintenance PDF | HTML 2016年 11月 1日
Technical article Let’s harvest that energy with MSP430™ FRAM microcontrollers PDF | HTML 2016年 2月 24日
Technical article Energy harvesting solutions enable expanded 4-20mA current loop functionality PDF | HTML 2016年 2月 4日
Technical article The secrets of energy harvesting: The sloth and the bear PDF | HTML 2015年 9月 29日
User guide User's Guide for bq25570 Battery Charger Evaluation Module for Energy Harvesting (Rev. A) 2014年 8月 23日
Product overview Battery Management Solutions for Wearable and Fitness Devices (Rev. C) 2014年 8月 18日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Product overview Industry’s Most Efficient Nano Power Harvesting Solutions (Rev. A) 2013年 11月 8日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

BQ25570EVM-206 — 超低功耗管理 IC、升壓充電器納米功率降壓轉換器評估模組

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 (...)

使用指南: PDF
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程式碼範例或展示

SLUC461 — Solar App Design Example V1.3, bq25570

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電池充電器 IC
BQ25570 — 具升壓充電器和微功率降壓轉換器的超低功耗採集器電源管理 IC
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計算工具

SLUC484 — bq25505/70 Design Help V1.3

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電池充電器 IC
BQ25505 — 具快速充電器和自主電源多工器的超低功耗收集器電源管理 IC BQ25570 — 具升壓充電器和微功率降壓轉換器的超低功耗採集器電源管理 IC
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參考設計

TIDM-WLMOTORMONITOR — 無線馬達監控參考設計

This reference design is inspired by the need to monitor the health of motors and machines to accurately predict and schedule maintenance (or replacement) while minimizing cost and downtime during industrial production. Millions of industrial motors are monitored today with handheld or wired piezo (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00649 — 4mA 至 20mA 迴路能源採集器參考設計

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 (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00246 — 適用熱電發電機 (TEG) 的通用能源採集轉接器模組參考設計

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 (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00616 — 適用於有刷 DC 馬達控制的能源採集 LaunchPad BoosterPack 參考設計

The Energy Harvesting LaunchPad for Brushed DC Motor Control is designed for charging a Li-ion or Li-polymer battery with solar energy, and subsequently using a voltage regulator to provide secondary system power to a TI LaunchPad and any peripherals connected the LaunchPad. The BoosterPack is (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00588 — 能源採集器 Booster Pack 參考設計

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.

There (...)

Design guide: PDF
電路圖: PDF
參考設計

TIDA-00242 — 採用超級電容的太陽能收集裝置參考設計

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
電路圖: PDF
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