hd66712u Renesas Electronics Corporation., hd66712u Datasheet - Page 83

• Manufacturer Part Number: hd66712u
• Description: Dot-matrix Liquid Crystal Display Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HD66712U
19. Reference data
446
The following graphs show the liquid crystal voltage booster characteristics.
VUP2 = V
VUP3 = V
CC
CC
–V5OUT2
–V5OUT3
(1) VUP2, VUP3 vs Vci
(2) VUP2, VUP3 vs I
(3) VUP2, VUP3 vs T
Test condition: Vci = V
Test condition: Vci = V
9.0
8.5
8.0
7.5
7.0
11
10
Test condition: Vci = V
9
8
7
6
5
4
9.0
8.5
8.0
7.5
7.0
6.5
6.0
–60
2.0
0.0
–20
Boosting twice
3.0
T
0.5
Boosting twice
Boosting twice
a
R
0
= 25 C, Rload = 25 k
f
V
T
= 91 k , I
20
ci
o
I
a
o
R
a
( C)
(V)
CC
(mA)
f
4.0
1.0
= 91 k , T
CC
, f
60
cp
= 4.5V,
CC
= 270 kHz,
o
1.5
5.0
= 4.5V,
= 0.25 mA
100
a
= 25 C
typ.
2.0
typ.
min.
typ.
min.
Test condition: Vci = V
Test condition: Vci = V
Test condition: Vci = V
8.0
7.5
7.0
6.5
6.0
8.0
7.5
7.0
6.5
6.0
5.5
5.0
15
14
13
12
11
10
9
8
7
6
–60
0.0
2.0
Boosting three times
Boosting three times
Boosting three times
–20
0.5
3.0
Ta = 25 C, Rload = 25 k
R
0
I
f
V
o
T
= 75 k , I
R
20
ci
a
(mA)
1.0
f
(V)
( C)
4.0
CC
= 75 k , T
CC
, f
60
cp
CC
= 2.7V,
1.5
= 270 kHz,
o
= 2.7V,
5.0
= 0.25 mA
100
a
= 25 C
2.0
typ.
typ.
min.
typ.
min.