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BQ24090: i have cc2530 that i want power it with 3.7V Battery LI ION that can be charge with BQ24090 . it charge the battery to 4.2V that damage cc2530 . what can i do?

navidrct ansari
Expert 1975 points
Part Number: BQ24090
Other Parts Discussed in Thread: CC2530

i have cc2530 that i want power it with 3.7V Battery LI ION that can be charge with BQ24090 . it charge the battery to 4.2V that damage cc2530 . what can i do?

this is the pic of my battery

this is the operation condition of cc2530

if i use BQ24090 it raise battery voltage to 4.2 Volt that damage cc2530

what should i do?

  • 0
    TI__Guru 70916 points
    The battery (UltraFire HH 16340) is a Li-Ion with a typical charge voltage of 4.2V. BQ24090 is a good charger to use with this cell.
    System will need to be configured with some type of regulator between the battery and CC2530. This could be a simple 3.3V LDO depending on the system requirements.