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TI BQ25570RGRR product image
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TI BQ25570RGRRRoHS

Manufacturer
TI
MPN
BQ25570RGRR
LCSC Part #
C506250
Packaging
VQFN-20-EP(3.5x3.5)
Customer #
Key Attributes
Micropower boost chargers and buck converters for energy harvester-powered applications
Datasheetpdf iconTI BQ25570RGRR

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Management - Specialized
ManufacturerTI
PackagingVQFN-20-EP(3.5x3.5)
TypeCharging IC;Protection IC
Operating Temperature-40℃~+125℃
Type of BatteryLithium Battery;Supercapacitor
FeaturesProgrammable charging current;Over-discharge protection;Overcurrent Protection
Quiescent Current488nA
Voltage - Supply2V~5.5V
Charge Current - Max285mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The bq25570 device is specifically designed to efficiently harvest microwatt (μW) to milliwatt (mW) levels of electrical energy generated by various high-output-impedance DC sources, such as photovoltaic (solar) or thermoelectric generators (TEGs), without causing these input sources to fail. The battery management features ensure that the rechargeable battery is not overcharged by the harvested energy and that the voltage rise or drop does not exceed the safe limits of the system load. In addition to the high-efficiency boost charger, the bq25570 also integrates a high-efficiency, micropower buck converter to provide a second power rail for systems such as wireless sensor networks (WSNs) with strict power and operational requirements. All functions of the bq25570 are available in a 20-lead, 3.5mm×3.5mm QFN small-outline package (RGR).

Features

AI Translation
  • Ultra-low power DC/DC boost charger
  • Cold start voltage: VIN ≥ 600mV
  • Continuous energy harvesting with input source as low as 100mV
  • Input voltage regulation prevents high-impedance input source dropout
  • 488nA (typical) quiescent current in full operation
  • Transport battery save mode with battery current < 5nA
  • Energy storage in rechargeable Li-ion batteries, thin-film batteries, supercapacitors, or conventional capacitors
  • Battery charging and protection with internally set undervoltage level, user-programmable overvoltage level
  • Battery good output flag
  • Programmable threshold and hysteresis
  • Power-loss-pending alarm for microcontroller, can be used to enable or disable system load
  • Programmable buck-regulated output (step-down)
  • Up to 93% efficiency, supporting 110mA peak output current (typical)
  • Programmable maximum power point tracking (MPPT) for optimal energy extraction from multiple energy sources, including solar panels, thermoelectric and piezoelectric generators

Applications

AI Translation
  • Solar chargers
  • Thermoelectric generators (TEG)
  • Wireless sensor networks (WSN)
  • Low-power wireless monitoring
  • Environmental monitoring
  • Bridge and structural health monitoring (SHM)
  • Smart building control
  • Portable and wearable health devices
  • Entertainment system remote control
In-Stock: 1,641
1,641 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 5.6883$ 5.69
10+$ 4.8727$ 48.73
30+$ 4.4851$ 134.55
100+$ 3.9938$ 399.38
500+$ 3.7684$ 1884.20
1,000+$ 3.6663$ 3666.30
Standard Packaging3000/Full Reel
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