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LED driver to drive 8.5V 100mA UVC LED

future chang1
Prodigy 250 points
Other Parts Discussed in Thread: TPS61169, LM3697, LM3509

Hi support :

I have a new project.
The LED is UVC LED.
The attached file is the I-V curve of the LED.
The Vf is very high.
Please help to advise good solution to drive LED.
I wish to have I2C or SPI or other serial interface for MCU
to control the LED driver.
The brightness controll could not be the PWM.
I need to drive the LED in different LED current.
I need to sink the LED in different current.
I wish to have 32 or higher brightness steps.
Please help to advise good solution.
Thanks.