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  • BQ25302: TS and REGN pin without USB

    Resolved
    Part Number: BQ25302 Hi all My customer is working on a design with the BQ25302 and they have this question: How do the TS and the REGN pins behave when USB is not connected ? Are they tristate ? What is the internal circuit one has to consider…
    • Resolved
    • Answered

  • BQ25302: Which is the best solution of 1S2P or 2S1P.

    Resolved
    Part Number: BQ25302 Hi team, One of our customer will design wireless speaker. When they think they put two cells battery inside of the speaker. What is the pros/cons at series or parallels? I think 2S1P needs cell balancing, but I don't know how…
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    • Answered

  • BQ25302: Why is a fault happened when 1ohm register is connected to the capacitor between BTST and SW terminal in series?

    Resolved
    Part Number: BQ25302 Hello guys, One of my customers is evaluating BQ25302 on their own board for new products. They measured EMI level of the board. As the result, the EMI level was exceeded EMI level limit around 40Mhz and 200MHz. So they tried to…
    • Resolved

  • BQ25302: No voltage at REGN pin

    Part Number: BQ25302 Hello All, I am working with the BQ25302 charger IC when I power On the chip without the battery connected and VBUS=5V I can measure 1. around 0.8V on SW pin 2. 1V on PMID pin 3. REGN=0V After connecting the battery and Powering…
    • Answered

  • BQ25302: Inductor Selection

    Resolved
    Part Number: BQ25302 BQ25302EVM uses 1 uH MAPM0420LA1R0M-LF inductor that is difficult to source. I'm working with the customer on alternatives, preferably physically smaller. If you have suggestions, they would appreciated. For 2A charge current what…
    • Resolved

  • BQ25302: Recommended values for VBUS diode and PFET

    TI Thinks Resolved
    Part Number: BQ25302 Hello, What values are recommended for the VBUS diode and the PFET when using the BQ25302 in an application with an external power path (2A maximum)? Thank you and regards, Alfred

  • BQ25302: question about external power path

    TI Thinks Resolved
    Part Number: BQ25302 Hello I've two questions about the external power path. 1. Is it necessary to add external power path for normal device such as mobile phone? the purpose is for better protection of battery? (prevent customers to charge and discharge…
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  • BQ25302: ICHG level setting, handling low battery condition

    Resolved
    Part Number: BQ25302 Hi all My customer has a design with the BQ25302 and has three current limits selectable by the uC I/Os (schematic below). 100mA / 500mA / 1A What happens in a low battery situation when the uC is not running ? Consulting…
    • Resolved

  • BQ25302: IC getting switched while charging

    Part Number: BQ25302 Hi TI Team, I have designed a charger circuit around BQ25302. Schematic: Observation: The output voltage is set to 4.2V and a single-cell phone battery is connected Input Voltage is kept at 5.4V DC I am seeing charging…
    • Answered

  • BQ25302: PMID capacitor value and fuel gauge position

    Resolved
    Part Number: BQ25302 Hi all My customer is working on a design with the BQ25302 and they have two questions: For the PMID capacitor: on the simplified application schematic on page 1 of the datasheet they find 2.2uF while the datasheet specifies 10uF…
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