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Showing 30 results View by: Thread Post Sort by
    Answered
  • BQ24091: NTC inquiries from BQ24091.

    Grady Lee
    Grady Lee
    Resolved
    Part Number: BQ24091 Hi, TI expert Customer is reviewing BQ24901, and there is a recommendation for a vendor and part number for NTC. In the datasheet of BQ24091, there is the following information. Even if you search for 10-k NTC and from the…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ24091: BQ24091 NTC calculation related inquiries

    Grady Lee
    Grady Lee
    Resolved
    Part Number: BQ24091 Other Parts Discussed in Thread: BQ24090 Hi, TI expert. According to the BQ24091 datasheet, I understood that using ß=3370 out of 100K NTC would allow setting from 0 to 45°C without additional external resistors. However, after…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ24091: BQ24091

    Akhil Pendyala
    Akhil Pendyala
    TI Thinks Resolved
    Part Number: BQ24091 Hi, I want to use BQ24091 to charge 3.7v 2500mAh lithium ion battery. My queries are: 1.In Datasheet BQ24091 out voltage is 4.2. Can i use 4.2 OUT voltage output to charge 3.7V battery placed in J11 connector place. by using…
    • over 5 years ago
    • Power management
    • Power management forum
  • BQ24091: BQ24091 CHG Status

    sundy xie
    sundy xie
    TI Thinks Resolved
    Part Number: BQ24091 Dear, We layout a board to test BQ24091 and meet some problem. When we set pin7 ISET2 to High, sometimes there is no Low status output in P8 CHG during chagring stage. If we set Pon7 float, the status of P8 is ok. And we…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ24091: End of charge not detected OR termination current doesn't meet settings

    Aurelie Duval
    Aurelie Duval
    Part Number: BQ24091 Hello, In two of our projects we are using the BQ24091 to charge a 80mA lipo battery but for some reason it doesn't react like expected. I have set the Riset resistor to 10k7 in order to have 50mA of fast current. I have ordered…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ24091: Connecting NTC to the TS pin and MCU

    Radomir Pans
    Radomir Pans
    Resolved
    Part Number: BQ24091 Hi, Is it possible to connect an NTC to the TS pin and to the MCU at the same time? In that way, I could use the NTC to detect when there is a problem when charging the battery and when the device is used I could monitor the…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ24091: Input Current and Charge Current

    Nicky Lim
    Nicky Lim
    Resolved
    Part Number: BQ24091 Hello, When I set Iinmax = 1A, Ichg = 1A but Vin source connected to Note PC (Iinmax = 500mA) 1. Can I use Fast Charge (1A charging)? or charge current is limited only 500mA? 2. If Battery pulled 1A by force, It can make Host…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • RE: BQ24091 Power Good (PG) led almost-on when battery connected

    Wenjia Liu
    Wenjia Liu
    What is VBAT? It is ok to have the pull up from PG to OUT, however PG pin should not be pulled low when there's no input power connected. Thanks, Wenjia
    • over 10 years ago
    • Power management
    • Power management forum
  • BQ24091 - low voltage battery problem

    Hung Tran
    Hung Tran
    Other Parts Discussed in Thread: BQ24091 My app uses BQ24091 to charger for Lithium battery from 5V DC power. when battery discharge down to about 1.5V, the IC does not charge. is there any way to fix this? if this is function of BQ24091 please show…
    • over 12 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: BQ24091 CHG- pin is not going high

    Robert Wachtel
    Robert Wachtel
    Resolved
    I want to clarify my inquiry. In the circuit above, ALL of the boards charged the battery but 3 did NOT turn off the CHG- pin (i.e. go high or FLOAT).
    • over 12 years ago
    • Power management
    • Power management forum
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