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Original question:

TPS65150: TPS65150 LCD POWER

TPS65150: LCM Power Suggestion

Kami Huang60
Genius 3830 points
Part Number: TPS65150

Dear Sir/Ms.

Would you please give me some advice?  I can not confirm did VGL down to -7V.  Did TPS65150 can drive this panel? If can not drive this panel would you please help to find the other part number?

VGH 22V/ 1mA

VGL -7V/ 1mA

AVDD 8.2V/70mA

VCOM 3V/

VDD 2.5V/120mA

Best Regards,

Kami Huang

  • +1
    TI__Mastermind 18550 points

    Hello Kami,

    You should be able to use TPS65150 for this application but may need to use two stages of charge pumps for VGH/VGL to achieve the desired regulated voltages. Figure 34 in the datasheet shows a two stage charge pump design example.

    Kind Regards,

    Liaqat