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HT9B95 Datasheet(PDF) 19 Page - Holtek Semiconductor Inc |
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HT9B95 Datasheet(HTML) 19 Page - Holtek Semiconductor Inc |
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19 / 32 page  Rev. 1.10 19 November 25, 2015 HT9B95A/B/G LCD Driving Voltage Adjustment Command – LVA ThiscommandisusedtoadjustthemaximumvoltageleveloftheLCDdrivingvoltage,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 • ItisprohibitedtosetV0voltagelessthan2.5Vandthecondition“VLCD-V0>0.6V”mustbemet.Ifthe voltageof(VLCD-V0)isequaltoorlessthan0.6V,theoutputvoltagewillbeunstable. • Poweronstatus:V0=VLCD. • Iftheprogrammedcommandisnotdefined,thefunctionwillnotbeaffected. |
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