• BQ25570: Pin Connect question of BQ25570

  

  Jimmy Lai

  TI Thinks Resolved

  Part Number: BQ25570 Dear team, 1. If customer only need to connect to either battery or system load. Can VBAT and VOUT be connected to only one of them? Or both should be connected? 2. If the customer wants to increase the capacitor in Vstore to charge…

  • 25 days ago
  • Power management
  • Power management forum
Answered

• BQ25570: Add Vstore pin capacitor

  

  Jimmy Lai

  Resolved

  Part Number: BQ25570 Dear Team, If customer want to add 2000uF capacitor on Vstore pin. Will there be any problems? Thanks a lot! Many Thanks, Jimmy

  • Resolved

  • 13 days ago
  • Power management
  • Power management forum

• BQ25570EVM-206: BQ25570 EVM VOUT=Vstor

  

  Star Xu

  Part Number: BQ25570EVM-206 Hi The customer test with BQ25570EVM and modified R10 to set the Vout 3.3V, but after charging BQ25570EVM-206, the voltage of Vstor is the same as the output voltage, and the voltage of Vout cannot be fixed at 3.3V. Input about…

  • 7 days ago
  • Power management
  • Power management forum
Answered

• BQ25570: Input source protection

  

  user5845893

  Resolved

  Part Number: BQ25570 Are any protection at the input site? What will happen when I give more power than 0.5W to device?

  • Resolved

  • 2 months ago
  • Power management
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Answered

• BQ25570: Quiescent current measurement conditions

  

  Stefan Lintner

  Resolved

  Part Number: BQ25570 Hi Team, Can you explain to me under which conditions the Iq was measured for BQ25570? Under electrical characteristics (page 6) it says that VIN_DC is 0V for all Iq typical characteristics. Can you please explain this? BR, Stefan

  • Resolved

  • 3 months ago
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• BQ25570: short on-times for energy source

  

  Darren Jenkins

  TI Thinks Resolved

  Part Number: BQ25570 Other Parts Discussed in Thread: BQ25505 Battery charger team, Can the BQ25570 (or BQ25505) be used in an application where the energy source is on for only 10ms, then off for 90ms, repeating? I couldn't find a spec in the datasheet…

  • 3 months ago
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• BQ25570: Reference design of energy harvesting

  

  Qixiang Chen

  TI Thinks Resolved

  Part Number: BQ25570 Hi team, My customer want to add the function of energy harvesting for their product, including some small energy like RF, vibration. I find that we have some device for this application but I'm not very familiar with it, could…

  • 4 months ago
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• BQ25570: PROBLEM DESIGN

  

  THIERRY PREVOTEAU

  TI Thinks Resolved

  Part Number: BQ25570 Hello, We have created a design withe the BQ25570 charging 2 supercaps of 5F. The photovoltaics cells are monocrystallin ref SM141K06LV. Parameters are: VBAT_OV = 5V VBAT_OK = 2,2V VBAT_OK_HYST = 2,8V VOUT = 2V We have 2 problems…

  • 5 months ago
  • Power management
  • Power management forum
Answered

• BQ25570: Skip LBUCK and VOUT SET divider

  

  Michal Hancák

  Resolved

  Part Number: BQ25570 Hello I designing sollar charger for my project but i dont have enough place and trying tu reduce components on PCB, is possible to skip LBUCK and resistor divider for VOUT SET, tied VOUT SET, VOUT EN to GND. Will the charger work…

  • Resolved

  • 3 months ago
  • Power management
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• BQ25570: BQ25570 VBAT pin greater than 4.2V

  

  Chung Nguyen1

  TI Thinks Resolved

  Part Number: BQ25570 Other Parts Discussed in Thread: TIDA-00588 We're using BQ25570 in our product. Currently we are having problems with this IC. Devices are sent back by customers to claim a lot of warranty. I checked the VBAT pin of IC BQ25570 is…

  • 8 months ago
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