Other Parts Discussed in Thread: BQ2954 , BQ24600 Hi,
I am currently doing a project where I’m developing a LiFePO4 battery charger to charge 4 of these cells in series. I am using the bq2954 IC and the circuit that I have implemented is found in the …
Other Parts Discussed in Thread: BQ2954 , TPS2829 , BQ24620 Hi,
I am using bq2954 IC from TI in my charger circuit to charge 2-cells (LiFePO4) in series. I have used the circuit in the following application notes.
1884.Using BQ2954.pdf
I have modified…
as the circuit limit is 1.25 A so the components rating to bear the current is according to that . if u want up to 2a go for pmp 530 design & adjust sense resistence value according to 2a. Second, the current limiting is done using pwm circuitry. …
I am investigating the temperature reference for this device.
In figure 1 of the datasheet (the block diagram) the TS (temperature sense input) is fed to a comparator. The other input of the comparator comes from a voltage reference block. My question…
Mao Ye,
Since the circuit in "Using the bq2954 to Charge the LiFePO4 Battery" has issues and is frequently referred to as an example of how to implement a LiPo charger circuit for a battery with greater than 6 cells, are there any plans to publish a…
Other Parts Discussed in Thread: BQ2954 Can I use this chip for 5-cell charger? I have some doubts about it because there isn`t exact information in datasheet.
Other Parts Discussed in Thread: BQ2954 A few of a batch of chargers, based on the BQ2954, and using a circuit very similar to the one in the data sheet, are intermittently failing to terminate the charge on a 2-cell Li-ion battery. End of charging for…
Other Parts Discussed in Thread: BQ2954 I am using bq2954 IC. If it reaches tapper current, the charging will automatically stops, then please tell what is significance of TM pin ?