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BQ2002D: TM pin and CC pin

K.Hamamoto
Guru 12155 points
Part Number: BQ2002D

Hi

I have several questions about this device.

(I already posted about VBAT pin configuration of this device. )

1. TM pin. ; Can we leave this pin open if we do not use ?

2. TM pin. ; Does it mean that the charging stop when the time reach at 440ms if TM is Mid?

3. CC pin. ; At Figure 5. it is shown that CC pin is output the 286us width pulse during the pulse-trickle charging.

                   If BQ2002D, CC does not output the 286us width pulse. Is that correct? (High at charging. Low at not charging.)

4. BQ2002D. ; Does BQ2002D support Trickle-charging and Top-off ? (At table 1, it is mentioned "None". That means "Not support"?)

    

Regards,

Koji Hamamoto

  • 0
    TI__Guru 65866 points
    Hello
    1.) TM pin. ; Can we leave this pin open if we do not use ?----No

    2.)TM pin. ; Does it mean that the charging stop when the time reach at 440ms if TM is Mid?---Yes (but 440 minutes)

    3.) CC pin. ; At Figure 5. it is shown that CC pin is output the 286us width pulse during the pulse-trickle charging---For bq2002D this does not apply

    4.) BQ2002D. ; Does BQ2002D support Trickle-charging and Top-off ? (At table 1, it is mentioned "None". That means "Not support"?)--Trickle-charge and Top-off for BQ2002D NO, does not support.

    Also See:
    www.ti.com/.../sluu229.pdf
  • 0 in reply to Bill Johns
    Guru 12155 points
    Hi Bill

    Thank you.

    Regards,
    Koji Hamamoto