Dear TI support team,
I am testing the TPS61197, here is my schematic:
When i put 5vdc on the PWM pin everything is fine. The led light up.
But when i put a pwm signal (f=200Hz/dcy=50%) in order to do some dimming, the leds blinks. It is like the converter loop between on and off state.
If i change the pwm frequency up to 10Khz and more, the leds lights only one time (something like 100ms ON) and then stay off.
Have you any ideas of what's happening ?
Regards,
Nicolas.