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Showing 122 results View by: Thread Post Sort by
  • BQ2002: Ni-MH battery series *2 charging IC requirements

    GARETH OU
    GARETH OU
    TI Thinks Resolved
    Part Number: BQ2002 Hi The input power is MICRO USB 5V/0.5A, the charging current is about 200mA,The battery is 2 Ni-MH batteries in series 1.How to set the full charge voltage? 2.How to do overcharge and overdischarge mechanism? Because it will be…
    • over 5 years ago
    • Power management
    • Power management forum
  • RE: BQ2002: BQ2002 charging 2 cells NiMh in serial

    WANG ANTRO
    WANG ANTRO
    Hi Bill, Thanks very much for your answer. I have tried to set the resistor network as RB1=100K, RB2=100K, that means 100k/100k=2 cells -1, but it doesn't work. when I power up the board, the charge LED is off. the voltage of the BAT+ is around…
    • over 8 years ago
    • Power management
    • Power management forum
  • BQ2002: Can this chip can support two Ni-MHbatteries in parallel?

    Gust Zhang
    Gust Zhang
    Part Number: BQ2002 Hi Can this chip can support two Ni-MHbatteries in parallel? BR Gust
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ2002: BQ2002 to charge a 9V battery.

    Ben Harp
    Ben Harp
    Resolved
    Part Number: BQ2002 Hi, I would like to use the BQ2002 to recharge one 9V Ni-MH rechargable battery (NH22-175 Energizer 9V http://data.energizer.com/pdfs/nh22-175.pdf ). Most nine-volt batteries are constructed of six individual 1.5V cells enclosed…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • BQ2002: Typical SCH

    Fandy
    Fandy
    TI Thinks Resolved
    Part Number: BQ2002 Other Parts Discussed in Thread: LM317 Hello My customer have NI-MH battery charger demands, input 5V, 3 NI-MH battery, I find Ti just have BQ2002x for NI-MH charger, but havn't find typical SCH of BQ2002, Could you provides reference…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ2002: Does TI recommend to use Negative Delta Voltage method when the charging current rate is C/2?

    Kazuya Nakai59
    Kazuya Nakai59
    TI Thinks Resolved
    Part Number: BQ2002 Hello guys, One of my customers is considering using BQ2002 for their new products. They have a question about BQ2002 charging method as the follow. Could you please give me your reply? Q. Does TI recommend to use Negative Delta…
    • over 5 years ago
    • Power management
    • Power management forum
  • RE: BQ2002 NiMH charging circuit not delivering enough current

    Devitto Kartono
    Devitto Kartono
    For the eval schematic, how do I control the current delivered to the battery? Is it by adjusting the Vout and Vadj resistor values? I need an output of 550+ mA which values should I tamper with to obtain that value? Can I use any other diodes and PNP…
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ2002: Recommended fast-charge current range

    tateo yamashiro
    tateo yamashiro
    Resolved
    Part Number: BQ2002 Hi, We got a question from the customer about bq2002. Could you help us? [Question] - They assume the recommended fast-charge current is spcified in table 1 which is "Corresponding Fast-Charge Rate". Is this their understnading…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ2002: Charging stop

    K.Hamamoto
    K.Hamamoto
    Part Number: BQ2002 Hi Our customer uses BQ2002D and measured on their board. However it does not work as expected. It sometimes stop fast charge. Also CC voltage become low when it stops. I have some question regarding to this phenomenon. 1…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ2002: Primary cell charging protection

    Nicky Lim
    Nicky Lim
    Resolved
    Part Number: BQ2002 Hello, If customer wants to use primary cell and secondary cell mixed in charger, is there any protection method not to charge primary cell? Customer wants to protect only primary cell when primary cell and secondary cell are…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
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