Part Number: BQ25157 I am having some issues reading the ADC integrated in the BQ25157 when the device is operating in battery mode.
I configured the ADC for manual reading by setting adcctrl0.adc_read_rate=0, and I enabled only VBAT and PMID measurements…
Part Number: BQ25157 Other Parts Discussed in Thread: BQ25155 Hi Experts,
My understanding is that I can set a regulated PMID voltage on the BQ25157, so that if say, I have VIN=5V and VBAT= 3.4V, I can set the PMID to a constant 4.2V, regardless of…
Part Number: BQ25157 Tool/software: Hello, I have an issue with the behavior of the BQ25157 in certain specific cases. The system in which the BQ is embedded is standalone, with a battery powering the system — there is no external source other than the…
Part Number: BQ25157 Other Parts Discussed in Thread: BQSTUDIO Hello,
I am using the BQ25157. It works quite well so far, but as soon as I remove the Vin (5V) and it is only powered by the battery, I measure on Vin ~2.5V with the multimeter and the…
Part Number: BQ25157 Tool/software: Hi,
I have two questions:
Based on the datasheet, the registers should reset to their default values. However, it appears that during this reset process, the output shuts down momentarily, which causes the microcontroller…
Part Number: BQ25157 Tool/software: Hi,
What is the "dropout" for LS/LDO output when used as LDO?
What is the minimal Vbat that allows the LDO output to be 2.5V?
Thanks,
Uri
Part Number: BQ25157 Hi,
I would like to connect an external 10k ohm NTC to the ADCIN pin.
should I connect it directly to the pin or use additinal parallel resistor (Rp=10K ohm) like the way the NTC connected to the TS pin?
Thanks,
Uri
Part Number: BQ25157 Tool/software: I need the FIT rate of the PMIC BQ25157 and unfortunately I have not found it. Can you please tell me where I can find it or tell me the value directly?
Thank you!
Greetings, Pascal
Part Number: BQ25157 Other Parts Discussed in Thread: BQ25155 , BQ25150 , Tool/software: The BQ25157 (similar to BQ25150, BQ25155) has a built in ADC. The conversion time, tadc_conv, in high resolution mode is listed at 24 ms.
Is that time per channel…
Part Number: BQ25157 Hi, I am using the PMIC "BQ25157" in a new product and have a question about the internal battery protection. The circuit is powered by the PMIC via its supply outputs: PMID, the adjustable LDO and the always on LDO (1.8V). We had…
