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Control the backlight of LCD by AM4376

Michi Yama
Guru 10030 points
Other Parts Discussed in Thread: AM4376, TPS61081

Hi,

My customer would like to do dimming LCD backlight by AM4376 processor.

For dimming control, it is needed 0-2.5V(10 steps) voltage. 

I think AM437x starter kit  has same solution. This evm uses ECAP0_IN_PWM0_OUT pin as LCD_BACKLIGHT. And TPS61081DRC is connected to LCD_BACKLIGHT through FET.

I checked TPS61081 spec. The Vout of this device is 2.7V minimum. So I think this can't be used for my customer. Could you advise me alternative device, instead of TPS61081DRC?

I appreciate your quick reply.

Best regards,