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  • TPS65721: How to turn on/off PMIC by a single push button or slide switch

    TI Thinks Resolved
    Part Number: TPS65721 Hello We want to use tps65721 in our future products. Our main goal is powering a wearable device that feeds from a rechargable li-ion battery. We know that the device can be turn on/off by writting on the hold-dcdc and hold-ldo…
    • Answered

  • TPS65721: CHGSTATE TESET after disconnecting from usb charger

    Resolved
    Part Number: TPS65721 Here is a schematic for my power management system. Lipo pack is 4.2v, charging is done via usb adapter. Every time i disconnect the power cable, module changes CHGSTATE firstly to CH_SLEEP, then to CH_RESET. RESET pin is always held…
    • Resolved

  • TPS65721: After removing usb power cable, device is stuck in CH_RESET mode (in reg CHARGER_STATE)

    Part Number: TPS65721 Hello. The issue stands and i'm quite lost. THRESHOLD connected directly to the DCDC1 output (3.3 V, tested and works as intended), without voltage dividers (pin connected directly to DCDC1 via 499KOhm resistor). After connection…
    • Answered

  • TPS65721: I2C continuous reading error

    Resolved
    Part Number: TPS65721 Other Parts Discussed in Thread: TPS65720 Hi! I faced with very strange error during continuous reading (more of 1 register data) from TPS65721. My solution: CPU: STM32F103CBTX IDE: STM CubeIDE Library: STM HAL library I2C bus speed…
    • Resolved

  • TPS65721: Charging_Status_TPS65721

    TI Thinks Resolved
    Part Number: TPS65721 Other Parts Discussed in Thread: BQ27426 Hi, The part TPS65721 will be able to provide status of battery during charging and during field use. Regards, Akshay

  • TPS65721: how recover from fault mode

    Part Number: TPS65721 Hi, My device is going fault state during charging, it is not consistent but it occurs in every ~50 charge cycles. it recovers back once i give a device reset and it is not repeating for next few days. I am reading the charge state…
    • Answered

  • TPS65721: Can't get more than 120 mA combined charger+operation

    Resolved
    Part Number: TPS65721 In implementing the circuit as shown in the development kit, when charging only (DC/DC and LDO are off), I can only get 120 mA going into the battery. (5V, 2.5A wall-mount power supply) When operating, I can get some current going…
    • Resolved

  • RE: TPS65721: How to detect Battery Low?

    Amilcare, Considering that the VBAT_COMP is not useful (because it has a maximum threshold of 2.5V (below Li-Ion end-of-discharge value, 2.8-3V), I was looking for another way to accomplish your goal using the registers or simple hardware modifications…
    • Answered

  • TPS65721: 2.25 MHz buck followed by an LDO

    Resolved
    Part Number: TPS65721 Other Parts Discussed in Thread: TPS717 Folks, I’m reading the datasheet for the TPS65721 (linear charger with buck converter and LDO). Fig. 23 shows a typical application towards a Bluetooth power supply. The TPS65721 generates…
    • Resolved
    • Answered

  • TPS65721: TPS65721 charger doesn't work

    Resolved
    Part Number: TPS65721 Hello, Were are using the TPS65721 for the first time in our project and we need to charge a LIPO battery with it. For now, we are not interested by the DC/DC, LDO or GPIOs functions. We have developed a small PCB to test the charger…
    • Resolved

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