Part Number: BQ24450EVM-691 Other Parts Discussed in Thread: BQ24450 , BQ24650 Hello, we are designing a charger for a 12V, 18AH lead acid battery utilizing the BQ24450 chip. To test the design we use the evaluation board with updated resistors, and the…
Hi Bill,
Our side performed the evaluation base on the EVM BQ24450EVM-691.
We doesn't built own circuit yet because we encountered above issue while using the EVM.
Please advice.
Thanks,
Teach Me
Part Number: BQ24450 I need help about SLA battery charger, BQ24450, I modified BQ24450EVM-691 to charge a SLA battery, 4V, 2AH. The charger works good after I changed several resistors. the fast charge current is 700 mA at 4.9V. and the taper/ floating…
Part Number: BQ24450 Hi TI Experts,
I conduct a study with BQ24450EVM-691 but I fail to fully charge it.
It maintains at 11.65V and 2 days continuously from 11V.
Vin supply: 12V
Battery Charge: 12V Lead acid 7Ah
Below are the parameters i use:
VTH :…
I don't find UC2906 and UC3906 EVM that makes more difficult for those NRND parts. Please measure the current sense pin on the IC to IC ground, it is 250mV. I am thinking the charging or load current may go through the sensing line and make the error…
I would say the functions of UC3906 are same as bq24450. UC3906 is a very old part. bq24450 is a new silicon. Also, bq24450 EVM is avaible.
You can use that EVM as reference to debug your board. The EVM link: http://focus.ti.com/docs/toolsw/folders/print…
Which reference design are you referring to?
Note that the bq24450 now has an EVM orderable for its evaluation: http://focus.ti.com/docs/toolsw/folders/print/bq24450evm-691.html . We have created this EVM for your customer to use for their evaluation…
It sounds like there may be a flakey connection on your breadboard. Try ohming out the nodes without power applied to make sure all the resistors in the feedback path are connected. We now have an EVM available that can help you evaluate this IC: http…
