BQ24092 lithium battery charging question

I attached lithium battery spec as below.SP546270.pdf

The schematic is very blurry. Can you re-attache with higher resolution? 

What is your test set up? How are you measuring the current?

Have you check on our EVM with the same battery?

Hola Jing,

Thanks for your prompt response and please see my reply below：

Below is the schematic for your kind information

Bq24092_schematic.pdf

My test setting is as below：

Pre-charge = 20% * CC = 200mA

CC = 1000mA

CV = 10% * CC = 100mA

ISET2 = GND = ISET setting

Remove R9 and connect ammeter at R9's left & right side, and measure the battery voltage from C9's VBAT.

From the schematic, it seems like you are connecting the TS pin to the battery thermistor in seris with a 10k resistor.

TS pin should either connect to the 10k-thermistor directly or connect to a 10k resistor to ground. 

If TS is intentionally to connect to the battery thermistor, please remove R21 and replace it with a 0 ohm resistor. 

Hola Jing,

Thank you very much for your prompt reply. I had tried to use below method to debug：

1. Disconnect between TS and battery and to let TS pin floating

2. Connect 10K ohm resistor with TS pin to the GND

3. To pull up TS pin

4. Connect 0ohm resistor with TS pin to the battery TH pad

As the above debug process and the charging current still cannot keep at the constant current when CC mode.

After that I will try to pull up ISET2 to see whether it can charging with the constant current.

Do you have another solution can help me to solve this urgent issue？ Thank you ～

4682.SP546270.pdf

Have you tried your test set up on the EVM? I was not able to duplicate the issue on the EVM at our bench. 

Do you  have any other load connecting at the OUT pin? Looks like the OUT is connecting to somewhere else other than the battery.