• 

  Tiger Zhou

  • 2 days ago
  • Power management
  • Power management forum

  RE: BQ24780S: any chance that VSYS could boost over 26V

  Hi, Vince, As you said, VSYS is very stable. I could not think of any situation the part will boost the voltage to 30V. Most likely, there is transient current in the system. Sudden cutoff of a large current could induce a voltage spike due to parasitic...
• 

  5949651

  • 10 days ago
  • Power management
  • Power management forum

  RE: BQ24780S: Adapter overvoltage and overcurrent protection without battery stage populated

  Thank you! Please do not forget to send me the friend request.
• 

  Mangesh S

  • 1 month ago
  • Power management
  • Power management forum

  BQ24780S: without uC charging termination?

  • Resolved

  Part Number: BQ24780S Hi, I this thread -> e2e.ti.com/.../3271561 1> It it said -> "Some of our
• 

  Antony Lin

  • 1 month ago
  • Power management
  • Power management forum

  BQ24780S: Test to damage input FET on purpose

  TI Thinks Resolved

  Part Number: BQ24780S Hi, Now we need to test the robustness of the N-FET (Q1 as below), and tried to perform some stress (short-circuit) test it for it. The test steps are, Step1. Short SYS to GND. Step2. Plug-in adapter At this moment...
• 

  Hugh Bisset1

  • 1 month ago
  • Power management
  • Power management forum

  BQ24780S: Battery FET

  • Resolved

  Part Number: BQ24780S Hi, Please see diagram in datasheet below. The application I am working
• 

  Antony Lin

  • 1 month ago
  • Power management
  • Power management forum

  BQ24780S: MOSFET minimum Vgs threshold level

  TI Thinks Resolved

  Part Number: BQ24780S Hi, Do we have the parameter of “MOSFET minimum Vgs threshold level” for high side and low side respectively? PLease check below (the RED circle) as an example from another chip. THanks! Antony
• 

  Star Xu

  • 1 month ago
  • Power management
  • Power management forum

  BQ24780S: BQ24780S dead time query

  TI Thinks Resolved

  Part Number: BQ24780S Hi My Customer measured the dead time of BQ24780 and found that it is much larger than the typical value of 20ns . The value measured on the board is 80ns. I do n’t know what caused the dead time to be too long. We use...
• 

  Antony Lin

  • 2 months ago
  • Power management
  • Power management forum

  BQ24780S: Low-side gate control rises slowly

  TI Thinks Resolved

  Part Number: BQ24780S Hi, During charging behavior test we found low-side gate rises a little bit slower like below. Would there be any concern or risk for this? Thanks. Antony Case1: Charging current is 0.5A (no system load) CH1: Low side...
• 

  Antony Lin

  • 2 months ago
  • Power management
  • Power management forum

  BQ24780S: 0x14H unexpectedly reset to 0mA

  TI Thinks Resolved

  Part Number: BQ24780S Hi, There's an application scenario that customer read from battery pack that the precharge current ongoing is 92mA. Customer tried to set 0x14H to 64mA and then found 0x14H is automatically set to 0mA for unknown reason. ...
• 

  Chandann27

  • 2 months ago
  • Power management
  • Power management forum

  BQ24780S: ACOK, ProcHot, ILIM, SDA ans SCL line energized / biased without VCC connection to IC

  • Resolved

  Part Number: BQ24780S Hi, We have pulled up ACOK and Prochot to 3.3V thru 10kOhms SCL and SDA lines

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