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TPS61194-Q1: About fault recovery

Yuto Sakai
Mastermind 6100 points
Part Number: TPS61194-Q1


Hi,

Our customers are considering TPS61194-Q1 for LCD display.
In the evaluation of the customer, the phenomenon occurs that the LCD backlight turns off and returns after 25 seconds.

I checked "Table 3. Fault Detections".
I believe that the fault state recovers only at the following protection operations.

・ VIN OVP
・ VIN UVLO
・ Thermal protection
However, even if it is any of these protection operations, I think that it takes too long to recover.

Is this device likely to have the protection operation that takes as long as 25 seconds to recover?
Also, could you let me know if you have any advice on debugging.

Best regards,
Yuto Sakai