Thank you for your reply. My usage scenario is that the tps61289 operates in boost mode, with an input of 3V and an output of 17V at a current of 5A. In this extreme case, the peak current of the built-in current-limiting MOSFET in the chip will exceed…
您好
7.3.2 Programmable Current Limit A high-accuracy current limit allows higher reliability, which protects the power supply during short circuit or power up. Also, it can save system costs by reducing PCB traces, connector size, and the capacity of the…
Thanks for the schematics. I am also not 100% sure why 7V would appear but have following suspicions for which I have some suggestions for you to implement and check
VCC/VISO Supply Decaps:
I don't see any supply decaps in the schematics - At least…
Is this for the gate driver? You can check the supply current whether its supply current exceeds HV start-up current out of VDD, the typical value is 250uA. The gate driver VCC sink current is too large to limit the VDD rising up.
You can refer to the…
Hi Team,
I would like to add a little more information. The power supply settings are: voltage 23.5V, current limit 2.1A. The current is 2.1A when the host is charging. The test is as shown on the right, which meets the current limit requirements. The…
Hi,
The board could hit input current limit. Could you try below register settings with input current limit/protection disabled?
* Created: Thu Jul 24 09:50:03 CDT 2025
*
* Format: Register Name tab Character,\t Hexadecimal register value.
* Device…
1. NTCs seem to be pre-charge path.
2. When the C pin of LM74801-Q1 is left floating, the reverse current blocking functionality is disabled. So, the device will allow reverse current flow through the MOSFETs. Now with the C pin floating, the device will…
