Other Parts Discussed in Thread: LP8556
Hi Team,
We have a customer looking for a 4-channel PWM to analog controller WLED Driver for medical applications.
Here is the requirement of our customer:
Vin: 5V
Channels: at least 4
Min. LED current per channel: 100mA
Application: Medical
Other requirements are should use PWM to analog controller instead of traditional direct PWM dimming, Less noisy, and LED should turn off, when in zero duty cycle ratio.
My search is only limited to 50 mA LED current for 4 channels.
Do we have something to offer with the customer requirement above?
They recently used AL3065 WLED driver and here are their observations:
Dimming Control 1) Direct PWM Dimming Control - Has noise issue 2) PWM to Analog Dimming Control - Led does not get switch off completely. LED will glow even for 0 duty cycle 3) DC to Analog Dimming Control - It is limited control range and we did not see the brightness LED glowing.
Regards,
Jonathan
