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Other Parts Discussed in Thread: BQ2004 Hi
I have a question about INH iput.
How much time is the delay time of starting the charge after the INH turns from low to high? (Min/Typ/Max)
We measured that delay time. It was 3.5s.
Regards,
Koji Hamamot
Hi
I have some question about -dT/t detection on state diagram.
1. At the pending state( Vtemp> VLTF or Vtemp< VHTF) it is in pulse trickle charging state. Is that correct?
2.The temperature is sampled at the voltage at the TS pin every 34s.
Each…
Hi
On the datasheet there are charge safety time and Hold time.
However that is only typical value. How much is the maximum and minimum time of these time?
Reagrds,
Koji Hamamoto
Other Parts Discussed in Thread: BQ2004 Customer evaluated bq2004 charging, but fast charge-stop timing is differ.
Please let me know about the reason.
-----------------------------
【Customer condition】
①Old information (Gragh is attached)
・Fast charge…
Other Parts Discussed in Thread: BQ2004 Hello,
I have a problem with the BQ2004 when I use the temperature monitoring.
Configuration mode for charge 3 NiMH cells:
TM1 High
TM2 float
VSEL= High
DSEL= High
Fast charge C/2
Fast charge safety time = 180…
Other Parts Discussed in Thread: BQ2004 Please let me know about bq2004.
（NiMH charger）
・A current frequency of smoothing choke coil is low (5kHz).
Please let me know the considered cause.
・Customer would like to adjust trickle charge time ： stop Total…
Hi
I referred the application note which is sluu016a.
How can we calculate the value of L1 inductor ?
-- http://www.tij.co.jp/jp/lit/ug/sluu016a/sluu016a.pdf
It may depends on charge current. However I do not understand how can we calculate the inductor…
Hi Peter
I'm not exactly answering your question, but what we mostly do here in our projects using BQ2003, is the usage of a double pole relay to:
1 - Short circuit the shunt to prevent the problem you are mentioning;
2 - Desconnect the battery from…
Other Parts Discussed in Thread: BQ2004 I am designing bq2004 charging circuit and I have the following issues:
i would like to use three 9V batteries
i want to apply 0.25 to 0.5 A
how to set up the TM1 and TM2
how can i determine the charging rat…
Other Parts Discussed in Thread: BQ2004 Hello All
Is the BQ2004 is capable to charge 1.2V Ni-MH cell?
My requirement are :
9.6v , 3700mAH Ni-MH battery pack ,* cells connected in series,
1.2v/cell
Can you please tell this is suitable for my application…
