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  • LP3921: Does PWR_ON and PS_HOLD affect charging?

    TI Thinks Resolved
    Part Number: LP3921 Hello, I have 2 questions regarding the LP3921: Q1: One thing is not clear in the datasheet - does PWR_ON and PS_HOLD affect charging, or only LDO / audio amp? Will charging start (and continue) also without PWR_ON and PS_HOLD asserted…
    • Answered

  • LP3921: Using LP3921 to charge a 3S NiMH battery pack

    Resolved
    Part Number: LP3921 Hi, In our product we're currently using the LP3921 to charge a 1S Li-Po battery pack, but we're considering changing the battery pack to a 3S NiMH pack instead (due to mostly easier shipping/handling) We've studied the datasheet…
    • Resolved

  • LP3921: Replacement of LP3921

    Part Number: LP3921 Hello sir/madam, One of my customer is using LP3921SQ for their old project and the runrate is 10Ku/Y. May I ask is there a replacement of LP3921? When I searched for the availability of LP3921SQ, this device seems like to end production…

  • LP3921: IQ(STANDBY) slowly increase above max spec on some boards

    Part Number: LP3921 Within a prototype batch of 50 PCBs some of the LP3921 show a strange behaviour with a slowly increasing IQ(STANDBY) to a high level above Max spec. The boards are powered with a 4.2V LiPO cell and have a few other components that always…

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