Part Number: BQ25172 Hi,
We are using the BQ25172 as a charger IC for a NiMH battery pack (4 cells in series). Could you please clarify the items below?
Charge safety timer (TMR pin resistor setting) According to the datasheet table for the TMR…
Part Number: BQ25172 Tool/software: ISET resistance value of BQ25172 I set RISET to 750Ω in order to set the charging current to 400mA. The actual measured value was only 200mA.
Is there a problem?
Battery: NiMH 2 cells
Part Number: BQ25172 Tool/software:
Hi, For the BQ25172 , could you please clarify the relationship between VIN and VOUT ?
I’m having trouble understanding how the minimum VIN required changes with the number of NiMH cells . What would be the recommended…
Part Number: BQ25172
Team, When the battery voltage is charged to a level higher than Vrechg. VIN remains continuously powered, and the TS pin is forced low (0 V). Then set the TS pin with a 10 kohm pull-down. Next, let the battery remain idle until…
Part Number: BQ25172 Tool/software: Hi,
I am in the process of designing a 4S NiMH battery charger using the BQ25172, but maybe the BQ25171 would be the better option. My goal is to initiate a charging cycle as often as possible. Am I correct in understanding…
Part Number: BQ25172 Hi team,
I would like to use TS pin as to control charge enable/disable via MCU GPIO.
It seems that we should pull down to GND for charge disable. On the other hand, what should do for charge enable? Floating is acceptable? If…
Part Number: BQ25172 Hi Team,
In the no-battery condition, a waveform with varying frequency was measured on the STAT pin.
1Hz or 5Hz
Are there any specifications or guidelines for this operating condition?
Part Number: BQ25172 Other Parts Discussed in Thread: LM66200 Tool/software: Hi Team,
In the absence of battery, the BQ25172 output voltage will rise to the input voltage.
When the LM66200 output load increases, the VUSB voltage will drop.
Become…
