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Ultra low power harvester power management IC with boost charger, and autonomous power multiplexor

Inventory: 2,384  

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
VQFN (RGR) | 20 250 | SMALL T&R
-40 to 125
Package | Pins VQFN (RGR) | 20
Package qty | Carrier: 250 | SMALL T&R
Operating temperature range (℃) -40 to 125
View TI packaging information

Features for the BQ25505

  • Ultra Low-Power With High-Efficiency DC-DC Boost Charger
    • Cold-Start Voltage: VIN ≥ 600 mV
    • Continuous Energy Harvesting From Input Sources as Low as 100 mV
    • Ultra-Low Quiescent Current of 325 nA
    • InputVoltage Regulation Prevents Collapsing High-Impedance Input Sources
    • Ship ModeWith < 5 nA From Battery
  • Energy Storage
    • Energy can be Stored to Rechargeable Li-Ion Batteries, Thin-FilmBatteries, Super-Capacitors, or Conventional Capacitors
  • Battery Charging and Protection
    • Internally SetUndervoltage Level
    • User-Programmable OvervoltageLevel
  • Battery-Good Output Flag
    • Programmable Threshold and Hysteresis
    • Warn AttachedMicrocontrollers of Pending Loss of Power
    • Can be Used to Enable or DisableSystem Loads
  • Programmable Maximum Power Point Tracking (MPPT)
    • Integrated MPPT for Optimal Energy Extraction From a Varietyof Energy Harvesters
  • Gate Drivers for Primary (Nonrechargeable) and Secondary (Rechargeable) Storage Element Multiplexing
    • Autonomous Switching Based onVBAT_OK
    • Break-Before-Make Prevents System Rail Droop

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Description for the BQ25505

The bq25505 device is specifically designed to efficiently extract the microwatts (µW) tomiliwatts (mW) of power generated from a variety of DC energy harvesting, high-impedance sourceslike photovoltaic (solar) or thermal electric generators (TEGs) without collapsing those sources.The battery-management features of the bq25505 ensure that a secondary rechargeable battery is notovercharged by this extracted power, with voltage boosted, nor depleted beyond safe limits by asystem load. The integrated multiplexer gate drivers autonomously switch the system load to aprimary nonrechargeable battery if the secondary battery voltage falls below the user-definedVBAT_OK threshold.


Qty Price (USD)
1-99 3.352
100-249 2.733
250-999 2.148
1,000+ 1.822

Additional package qty | carrier options

Package qty | Carrier 3,000 | LARGE T&R
Inventory 74,722
Qty | Price (USD) 1ku | 1.584 1-99 2.915 100-249 2.376 250-999 1.868 1,000+ 1.584
Custom reel may be available