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…
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…
Hi Maxim,
It may be difficult to find the issue without the full system layout if I can't find anything in the schematic that would initiate a charger reset upon disconnection. What do you read at register 02h (CHGCONFIG0) both before and after unplugging…
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…
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
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…
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…
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…
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…
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…
