Rev. 1.10

19

November 25, 2015

HT9B95A/B/G

LCD Driving Voltage Adjustment Command – LVA

This command is used to adjust the maximum voltage level of the LCD driving voltage, V0.

Function

(MSB)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

(LSB)

Bit0

Note

LCD driving Voltage Adjustment (LVA)

C

1

0

LV4

LV3

LV2

LV1

LV0

—

Note: V0: The maximum voltage level of the LCD driving voltage.

The relationship between V0 and LVA setting is summarized as the following table shown.

LV4~LV0

Voltage ratio

VLCD =5.5V

VLCD =5V

VLCD =3.5V

VLCD =3V

VLCD =2.5V

00000

VLCD

V0=5.500V

V0=5.000V

V0=3.500V

V0=3.000V

V0=2.500V

00001

0.967 * VLCD

V0=5.319V

V0=4.835V

V0=3.385V

V0=2.901V

V0=2.418V

00010

0.937 * VLCD

V0=5.154V

V0=4.685V

V0=3.280V

V0=2.811V

V0=2.343V

00011

0.909 * VLCD

V0=5.000V

V0=4.545V

V0=3.182V

V0=2.727V

V0=2.273V

00100

0.882 * VLCD

V0=4.851V

V0=4.410V

V0=3.087V

V0=2.646V

V0=2.205V

00101

0.857 * VLCD

V0=4.714V

V0=4.285V

V0=3.000V

V0=2.571V

V0=2.143V

00110

0.833 * VLCD

V0=4.582V

V0=4.165V

V0=2.916V

V0=2.499V

V0=2.083V

00111

0.810 * VLCD

V0=4.455V

V0=4.050V

V0=2.835V

V0=2.430V

V0=2.025V

01000

0.789 * VLCD

V0=4.340V

V0=3.945V

V0=2.762V

V0=2.367V

V0=1.973V

01001

0.769 * VLCD

V0=4.230V

V0=3.845V

V0=2.692V

V0=2.307V

V0=1.923V

01010

0.750 * VLCD

V0=4.125V

V0=3.750V

V0=2.625V

V0=2.250V

V0=1.875V

01011

0.731 * VLCD

V0=4.021V

V0=3.655V

V0=2.559V

V0=2.193V

V0=1.828V

01100

0.714 * VLCD

V0=3.927V

V0=3.570V

V0=2.499V

V0=2.142V

V0=1.785V

01101

0.697 * VLCD

V0=3.834V

V0=3.485V

V0=2.440V

V0=2.091V

V0=1.743V

01110

0.681 * VLCD

V0=3.746V

V0=3.405V

V0=2.384V

V0=2.043V

V0=1.703V

01111

0.666 * VLCD

V0=3.663V

V0=3.330V

V0=2.331V

V0=1.998V

V0=1.665V

10000

0.652 * VLCD

V0=3.586V

V0=3.260V

V0=2.282V

V0=1.956V

V0=1.630V

10001

0.638 * VLCD

V0=3.509V

V0=3.190V

V0=2.233V

V0=1.914V

V0=1.595V

10010

0.625 * VLCD

V0=3.438V

V0=3.125V

V0=2.188V

V0=1.875V

V0=1.563V

10011

0.612 * VLCD

V0=3.366V

V0=3.060V

V0=2.142V

V0=1.836V

V0=1.530V

10100

0.600 * VLCD

V0=3.300V

V0=3.000V

V0=2.100V

V0=1.800V

V0=1.500V

10101

0.588 * VLCD

V0=3.234V

V0=2.940V

V0=2.058V

V0=1.764V

V0=1.470V

10110

0.576 * VLCD

V0=3.168V

V0=2.880V

V0=2.016V

V0=1.728V

V0=1.440V

10111

0.566 * VLCD

V0=3.113V

V0=2.830V

V0=1.981V

V0=1.698V

V0=1.415V

11000

0.555 * VLCD

V0=3.053V

V0=2.775V

V0=1.943V

V0=1.665V

V0=1.388V

11001

0.545 * VLCD

V0=2.998V

V0=2.725V

V0=1.908V

V0=1.635V

V0=1.363V

11010

0.535 * VLCD

V0=2.943V

V0=2.675V

V0=1.873V

V0=1.605V

V0=1.338V

11011

0.526 * VLCD

V0=2.893V

V0=2.630V

V0=1.841V

V0=1.578V

V0=1.315V

11100

0.517 * VLCD

V0=2.844V

V0=2.585V

V0=1.810V

V0=1.551V

V0=1.293V

11101

0.508 * VLCD

V0=2.794V

V0=2.540V

V0=1.778V

V0=1.524V

V0=1.270V

11110

0.500 * VLCD

V0=2.750V

V0=2.500V

V0=1.750V

V0=1.500V

V0=1.250V

11111

0.491 * VLCD

V0=2.701V

V0=2.455V

V0=1.719V

V0=1.473V

V0=1.228V

Prohibit setting

• It is prohibited to set V0 voltage less than 2.5V and the condition “VLCD-V0>0.6V” must be met. If the

voltage of (VLCD-V0) is equal to or less than 0.6V, the output voltage will be unstable.

• Power on status: V0=VLCD.

• If the programmed command is not defined, the function will not be affected.