
LC868016/12/08A
20/28
7. LCD Voltage and LCD Driver Characteristics at Ta=-30
°
C to +70
°
C, VSS=0V
Ratings
typ.
Parameter
Symbol
Pins, Conditions
VDD[V]
2.9
5.0
2.9
5.0
min.
max.
120
200
120
200
unit
VDD-Ci drop
voltage (i : 1 to 16)
VX-Ci drop
voltage (X : 1 to 4)
(i : 1 to 16)
VX-Ci drop
voltage (X : 1 to 5)
(i : 1 to 16)
|VD1|
|VD2|
Only a Ci terminal for –15
μ
A
LCD display ON
1/5 bias
V5=0V
2.9
5.0
-120
-200
|VD3|
Only a Ci terminal for +15
μ
A
LCD display ON
1/5 bias
V5=0V
Only a Si terminal for -15
μ
A
LCD display ON
1/5 bias
V5=0V
2.9
5.0
2.9
5.0
120
200
120
200
VDD-Si drop
voltage (i : 1 to 48)
VX-Si drop
voltage (X : 1 to 4)
(i : 1 to 48)
VX-Si drop
voltage (i : 1 to 5)
(i : 1 to 48)
|VD4|
|VD5|
2.9
5.0
-120
-200
|VD6|
Only a Ci terminal for +15
μ
A
LCD display ON
1/5 bias
V5=0V
LCD clock frequency=0Hz
LCD display ON
1/5 bias
V5=0V
Refer to figure 9
mV
2.9
5.0
2.9
5.0
2.9
5.0
2.9
5.0
5
2.9
5
2.9
V1 output voltage
VV1
0.75VDD 0.80VDD 0.85VDD
V2 output voltage
VV2
0.55VDD 0.60VDD 0.65VDD
V3 output voltage
VV3
0.35VDD 0.40VDD 0.45VDD
V4 output voltage
VV4
0.15VDD 0.20VDD 0.25VDD
V
25
15
125
75
50
29
250
150
100
60
500
300
ILCD1
20k
mode
4k
mode
LCD display
current
ILCD2
LCD display ON
1/5 bias
VLCD=0V
V1-V5 are opened
Refer to figure 8
V1-V5 resistor=20k
LCD display ON
LVCR0=1 (doubler)
VOUT2
C5=C6=0.1
μ
F
Internal RC oscillation
start
Refer to figure 10
V1-V5 resistor=20k
LCD display ON
LVCR0=0 (tripler)
VOUT3
C5=C6=0.1
μ
F
Internal RC oscillation
start
Refer to figure 11
LCD display ON
V5=0V
VLCD=-3V
Refer to figure 12
μ
A
2.7
3
5
2.7
3
5
-2.7
-3
-5
-2.7
-3
-5
-1.9
-2.8
-4.8
-1.8
-2.6
-4.6
-1.7
-2.6
-4.5
-1.5
-2.2
4.2
IL=100
μ
A
VOUT2
IL=500
μ
A
IL=100
μ
A
IL=500
μ
A
5
-10
-9.4
-9.0
Step up voltage
VOUT3
5
-10
-8.5
-7.5
V
ILC1
ILC2
ILC3
ILC4
ILC5
VCCR=1
VCCR=2
VCCR=4
VCCR=8
VCCR=10H
5
5
5
5
5
5
2.5
1.25
0.6
0.3
10
5
2.5
1.25
0.6
20
10
5
2.5
1.25
mA
Contrast current
(VLCD terminal)
μ
A
VCCR : The LCD contrast control register
LVCR0 : Bit 0 of the LCD bias control register