em83040a application note brad chen may 31, 2002 1 subject : 1. em83040a ??D 2. ?? ? ? (i-v curve) application circuits 1. 32common * 48segment en ramen ramads ramw ramr ramd(3:0) o80.....o 1 s47 c31 c0 lcd 32*48 mcu main m1 m0 vss3 vss2 cb ca vdd gnd load nc vreg s0 nc v1 v2 v3 v4 v5 vdd vdd vdd nc nc u 1 gnd vout vin 8 7 6 5 4 3 2 1 vdd ht7660 10 f10 f 10 f 10 f 1 f vlcd ilcd d1 d2 figure 1.
em83040a application note brad chen may 31, 2002 2 2. 32common * 128segmet en ramen_m ramads ramw ramr ramd(3:0) o80.....o1 lcd 32*128 mcu main m1 m0 vss3 vss2 cb ca vdd gnd load load vreg nc v1 v2 v3 v4 v5 vdd vdd vdd en ramen_s ramads ramw ramr ramd(3:0) o80.....o1 mcu main m1 m0 vss3 vss2 cb ca vdd gnd load load vreg v1 v2 v3 v4 v5 vss vdd vdd nc nc nc nc connect to master chip master master master master slave slave slave slave nc u 1 gnd vin 8 7 6 5 4 3 2 1 vdd ht7660 10 f10 f 10 f 10 f s79 s0 s127 s80 c31 c0 nc nc vlcd ilcd d1 d2 vout figure 2.
em83040a application note brad chen may 31, 2002 3 3. 48common * 112 segment en ramen_m ramads ramw ramr ramd(3:0) o80.....o1 lcd 48*112 mcu main m1 m0 vss3 vss2 cb ca vdd gnd load load vreg nc v1 v2 v3 v4 v5 vdd vdd gnd en ramen_s ramads ramw ramr ramd(3:0) o80.....o1 mcu main m1 m0 vss3 vss2 cb ca vdd gnd load load vreg nc v1 v2 v3 v4 v5 gnd vdd gnd nc nc nc nc connect to master chip master master master master slave slave slave slave s79 s0 s111 s80 c47 c0 u 1 gnd vout vin 8 7 6 5 4 3 2 1 vdd ht7660 10 f 10 f 10 f nc nc vlcd ilcd d1 d2 figure 3
em83040a application note brad chen may 31, 2002 4 i-v curve ??????Y? u1,d1,d2, vin ??? 6 N??? (vlcd) c (ilcd) ? table 1 case vin u1 d1(diode) d2(diode) vout diagram 1 3.6~5 v ht7133 1n4004 1n4004 3.3v figure 4 2 3.6~5v ht7133 1n4004 1n5819 3.3v figure 5 3 3.6~5v ht7133 1n5819 1n5819 3.3v figure 6 4 3.3~5 v ht7130 1n4004 1n4004 3v figure 7 5 3.3~5 v ht7130 1n4004 1n5819 3v figure 8 6 3.3~5 v ht7130 1n5819 1n5819 3v figure 9 condition: at +25 i-v curve u1 (ht7133), d1 (1n4004), d2 (1n4004) 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6 6.05 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 ilcd (ua) vlcd (volt) figure 4. case 1
em83040a application note brad chen may 31, 2002 5 i-v curve u1 (ht7133), d1 (1n4004), d2 (1n5819) 5.7 5.75 5.8 5.85 5.9 5.95 6 6.05 6.1 6.15 6.2 6.25 6.3 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 ilcd (ua) vlcd (volt) figure 5. case 2 i-v curve u1 (ht7133), d1 (1n5819), d2 (1n5819) 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 100 0 105 0 ilcd (ua) vlcd (volt) figure 6. case 3
em83040a application note brad chen may 31, 2002 6 i-v curve u1(ht7130), d1 (1n4004), d2 (1n4004) 4.7 4.75 4.8 4.85 4.9 4.95 5 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 ilcd (ua) vlcd (volt) figure 7. case 4 i-v curve u1 (ht7130), d1 (1n4004), d2 (1n5819) 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 ilcd (ua) vlcd (volt) figure 8. case 5
em83040a application note brad chen may 31, 2002 7 i-v curve u1(ht7130), d1 (1n5819), d2 (1n5819) 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 ilcd (ua) vlcd (volt) figure 9 case 6
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