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Showing 58 results View by: Thread Post Sort by
  • BQ25121: High Z, CD and I2C

    Dima S
    Dima S
    TI Thinks Resolved
    Part Number: BQ25121 Changing CD pin to low and activating HighZ mode. Will this shutdown I2C? If i pull CD to low in the middle of an I2C operation, will it cause a failure? High Impedance mode is the lowest quiescent current state while operating…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: System will not wake when battery attached

    Dima S
    Dima S
    TI Thinks Resolved
    Part Number: BQ25121 Hi, My actions: 1. Unplug Battery 2 Plug it back. 3. System will not wake up. My device will not turn on after I unplug battery (3.7V) and then plug back. Only if i connect to external power (5V) , it wakes up. Any…
    • over 6 years ago
    • Power management
    • Power management forum
  • BQ25121: PMIC fault in register 0

    Dima S
    Dima S
    TI Thinks Resolved
    Part Number: BQ25121 I have charged my battery to almost 4.1 V I still get the pmic error state on register 0.
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: Other package options

    Peter McGuire
    Peter McGuire
    Part Number: BQ25121 Hello, we are very happy with the BQ25121 however the package option tends to drive up PCB cost due to small clearances and need for very small in-pad vias. Is there another package option for this part planned in the future?
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: Inital Power on

    vivek vishwanath
    vivek vishwanath
    TI Thinks Resolved
    Part Number: BQ25121 At power on the SW output will be 2.5V by Default. However the main controller IC requires a minimum of 2.7V . Is there any variant which can provide 3V or 3.3V at power on condition .
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121 powering up after powerdown

    Dajgoro Labinac98
    Dajgoro Labinac98
    Other Parts Discussed in Thread: BQ25121 Hi. I have an odd situation where the BQ25121 (non A) would power itself up after the ship mode instruction would be given. When looking at the scope on the PMID pin I could see that the voltage would start rising…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: Is there having BQ25121 I2C sample code for reference ? (e.g. I2C Initial ; Set Output Voltage ; LS/LDO Output ; LDO Output Voltage…)

    Chen Bogey8
    Chen Bogey8
    TI Thinks Resolved
    Part Number: BQ25121 Other Parts Discussed in Thread: BQ25120 Hi Sir Is there having BQ25121 I2C sample code for reference ? (e.g. I2C Initial ; Set Output Voltage ; LS/LDO Output ; LDO Output Voltage…) Bogey
    • over 8 years ago
    • Power management
    • Power management forum
  • BQ25121: Writing a value but reading a different one.

    Dima S
    Dima S
    TI Thinks Resolved
    Part Number: BQ25121 I want to get a LDO voltage of 3.3V. I am Writing to Register : 0x07h , Load Switch and LDO Control Register the value: 0xE4 But when i read it i get the value : 0xFC when i looked in Bq battery management Studio, 0xFC writes…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: PMIC fault in register 0

    Dima S
    Dima S
    TI Thinks Resolved
    Part Number: BQ25121 Hello When Charging device, PMIC enters Fault state, reading 0xC1h (Fault) on register 0x0h. Battery is charging but this error concerns me. When i disconnect device from charger it exist fault state and shows : 0x03h .…
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25121: PMID maximum output capacitor value

    Jeffrey
    Jeffrey
    Part Number: BQ25121 Other Parts Discussed in Thread: BQ25120A Hi... There was no PMID output of BQ25121 when capacitor more than 15uF was applied on PMID pin as an output capacitor. So I tested EVM under these same conditions and same result was…
    • over 8 years ago
    • Power management
    • Power management forum
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