Other Parts Discussed in Thread: BQ2040 Hi ,
I am using the BQ2040 with a two cell Li-Ion battery. Recently we have had some problems with indication LEDs as they show incorrect information about the status of the cells:
The following are the read…
Other Parts Discussed in Thread: BQ2040 We have been using the BQ2040 in a handheld computer for battery management with a 2-cell 18650 pack for many years with good results.
We have recently tried to change from using Molicell (MicroSun) 2400mAh cells…
Other Parts Discussed in Thread: BQ78350 , BQ2040 , BQ76930 We are looking to replace a BQ2040 with a combination BQ76930 and BQ78350. I understand that the BQ2040 uses a Voltage to Frequency front-end for charge counting which captures relative current…
Other Parts Discussed in Thread: BQ2040 Hello,
My question is about BQ2040: http://www.ti.com/lit/ds/symlink/bq2040.pdf
Can I directly power the component using 28 NiMH cells and a 2N7002 FET, whereas the Chart 1 page 3 stops at 12 NiMH cells ?
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Other Parts Discussed in Thread: BQ2040 I am currently evaluating a 4-cell Li-Po battery that uses the BQ2040 gas gauge. On its initial charge it requested ChargingVoltage of 16800mV. It is now requesting 'maximum' voltage (0xFFFF). The data sheet implies…
Other Parts Discussed in Thread: BQ2040 1.I am trying to use BQ2040 with 5S LI-cells by selecting R5=909K, R4=100K & R11= 1M. My max battery voltage will go upto 22.5 V. I checked Vcc also, it is range also.
Is there any other factor which I have to…
1) Since the bq2040 uses EDV and not CEDV, it does not have the capability to account for pulses.
2) and 3) The bq2040 cannot measure individual cell voltages, it only senses total battery pack voltage therefore both of these are not possible.
To…
Other Parts Discussed in Thread: BQ2040 , BQ34Z100 , BQ34Z110 , BQ34Z100EVM I am working on a new design that requires monitoring of a 20-cell (~29V max) NiMH battery. We need to charge it, monitor the "fuel level" during discharge and trigger a recharge…
Other Parts Discussed in Thread: BQ2040 EV2200-40 evaluation system for bq2040: When I enter new data on the screen to write to the eeprom, I have a problem with Charging Voltage and EDVF. On both, as soon as I enter even a single number or character…
Other Parts Discussed in Thread: BQ2040 , BQ2085 Is there an SBS command or sequence that will permit me to identify which gauge IC I've got attached to the bus? We use a number of battery packs from different manufacturers and all have different gauges…
