Hi Team,
My customer is using TPS65150-Q1 as a LCD driver on a head unit.
When they are restarting the power, the LCD screen can't start. They tested the VGH and VGL are both no output. For the non-working device, the EN is normal, the V(vs)is 3.3V. For the working device, the V(vs) is 12.95V.
So it looks like the boost doesn't work during the restart?
Their 3.3V supply voltage has a step as shown in the figure, does it affect?
The schematic is attached.
You can also connect with me internally via. frank-qin@ti.com
Thanks
Frank
