Hi,
I am trying to design a backlight driver for 10 LEDs in series at 60mA per string. The datasheet for TPS61195 indicates the IFB channels on this device can be paralleled to achieve higher output current per string. I am trying to achieve 60mA per string. Since each IFB pin can sink 30mA, will parallelling 2ea IFB pins together result in 60mA capacity? Also, what is the minimum input voltage I need to apply in order to drive 10-leds in series at 60mA. Ultimately I hope to drive up to 4ea 10-LED strings with 60mA per string using a 5V input. Is this feasible?
Your help will be greatly appreciated.
tg
