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Backlight driver for DT070BTFT-PTS1

Submitted by Jaisankar_av on June 4, 2019

Hi,

We are using DT070BTFT-PTS1 LCD in our design and the backlight is not working with the 9.6V DC-DC power supply with series resistor (R175 =75Ohm) to control 140mA.

The display does not have any brightness.

Attaching the power supply section for the backlight. Pls refer and let us know what could be wrong. Appriciate your quick reply.

Regards,

J

Attachment: 
Image icon backlight ckt.PNG
Image icon LCD interface.PNG
Image icon Gatevoltage power.PNG

Replies

engineering_seacomp's picture
engineering_seacomp
July 2, 2019

Hi,

We applogize for just responding.  Where you able to get this working?

 

Thanks,