Hi,
I am considering using the LP8556 device.
The specifications are as follows.
ORDERABLE DEVICE : LP8556SQE-E08/NOPB
(specification)
VIN:5V
LED voltage:10V-14V
LED current:30mA
Number of ch:4ch
(question 1)
At the beginning of the data sheet, the maximum is 50mA for each channel, but in the table below, MAXIMUM LED CURRENT = 23mA.
Which value is correct?
(Question 2)
BOOST OUTPUT VOLTAGE RANGE = 16V to 34.5V in the table below.
It is assumed that two LEDs with VF = 5V to 7V will be used in series for each channel at 10V to 14V.
Is this IC compatible?
(Question 3)
Only PWM control is available, but can it be used with a fixed current of 30mA? (Supported by Duty 100%)
Best regards,
