Hi Abdul,
Could you please confirm the maximum output current is 1.1A? If it's, it's far from the over-current threshold, and the FAULT can't be a over-current FAULT. Is the power supply stable at 7V? If it is, the FAULT is not a under-voltage FAULT or over-voltage FAULT on PVCC.
Then the only possibility is over-temperature FAULT. But the output power is actually very low (less than 1.1A), and the temperature shouldn't rise too much. The over-current FAULT shouldn't occur with Ta=25degC if PCB design follows our EVM www.ti.com/.../slau479.pdf.
This sounds strange. Could you plesae send me your SCH and PCB? And could you capture the waveform of output current signal when the FAULT occurs?
Best regards,
Shawn Zheng
Could you please confirm the maximum output current is 1.1A? If it's, it's far from the over-current threshold, and the FAULT can't be a over-current FAULT. Is the power supply stable at 7V? If it is, the FAULT is not a under-voltage FAULT or over-voltage FAULT on PVCC.
Then the only possibility is over-temperature FAULT. But the output power is actually very low (less than 1.1A), and the temperature shouldn't rise too much. The over-current FAULT shouldn't occur with Ta=25degC if PCB design follows our EVM www.ti.com/.../slau479.pdf.
This sounds strange. Could you plesae send me your SCH and PCB? And could you capture the waveform of output current signal when the FAULT occurs?
Best regards,
Shawn Zheng