I've been tasked to find a suitable backlight led driver for a Mitsubishi LCD panel (AA104XF12-cf1) which is PWM dimmable, but in my search I've only found confusion.
In nearly all datasheets it specifies a certain amount of LEDs the driver is designed for. Isn't it irrelevant how many LEDs you connect as long as the voltage is correct and the driver can supply or sink enough current?
Bonus question: Why do some ICs have multiple sink channels for separate strings when you can connect them together to increase the total current? I have 2 backlight strings of 120mA each, which could be connected to 8 channels of 30mA as long as they're current sinks.
As per request here are some examples of datasheets which specify the number of LEDS.