BQ24090: bq24090 test use ITECH DC ELECTRONIC LOAD

user503335153

Part Number: BQ24090

question:1、After completing a charge test，restart next time ,Do I need to do anything about the bq24090?

2、The electronic load insead of the battery,do a charge test,use CV mode,and set 3.3V,press"enter"and"ON",the voltage display instability and Jump within a certain range.WHY?

3、Use adapter(2A) input ,After the bq24090 completing a charge, Whether the adapter can still power the system load(200mA),or the battery power the system load?

The SCH as follow,and the ISET2 connect to GND.

over 7 years ago

0 Bill Johns over 7 years ago

TI__Guru* 75656 points

Hello

I can help with this question but will need more info.

What type of test is this, EVM eval, proto-type of new build or manufacturing?

What type of electronic load is used?

How is ISET2 controlled?

0 user503335153 over 7 years ago in reply to Bill Johns

Intellectual 810 points

ISET2 connect to GND, electronic load is ITECH IT8521 ,use CV mode ,press v-set,set 3.0V~4.2v,and then "enter""on". testing charging current value when the voltage(Simulate the battery charging process)change form 3.0v to 4.2V.

0 user503335153 over 7 years ago in reply to Bill Johns

Intellectual 810 points

How do I operate?Use electronic load instead of battery test BQ24090 charging process.

0 Bill Johns over 7 years ago in reply to user503335153

TI__Guru* 75656 points

I have not found any info on this electronic load, it may not work as a battery simulator.
We used sourcemeters to simulate batteries, see Keithley 2400.
Also see bq51050 EVM users guide it describes a battery simulator that can be assembled from common lab parts and equipment.

0 user503335153 over 7 years ago in reply to Bill Johns

Intellectual 810 points

Can you the step of useing Keithley 2400 to simulate batteries,I want to test BQ24090 charge process.

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BQ24090: bq24090 test use ITECH DC ELECTRONIC LOAD