LC75847T Datasheet, PDF (3/27 Pages) Sanyo Semicon Device – 1/3, 1/4 Duty General-Purpose LCD Driver

LC75847T
Electrical Characteristics for the allowable operating ranges
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Hysteresis
Input high level current
Input low level current
Output high level voltage
Output low level voltage
V_H
I_IH
I_IL
V_OH1
V_OH2
V_OH3
V_OL1
V_OL2
V_OL3
V_MID1
CE, CL, DI, INH
CE, CL, DI, INH: V_I = 6.0 V
CE, CL, DI, INH: V_I = 0 V
S1 to S106: I_O = –20 µA
COM1 to COM4: I_O = –100 µA
P1 to P8: I_O = –1 mA
S1 to S106: I_O = 20 µA
COM1 to COM4: I_O = 100 µA
P1 to P8: I_O = 1 mA
COM1 to COM4: 1/2 bias, I_O = ±100 µA
–5.0
V_LCD0 – 0.9
V_LCD0 – 0.9
V_LCD – 0.9
1/2 V_LCD0
– 0.9
0.1 V_DD
V
5.0 µA
µA
V
0.9
0.9 V
0.9
1/2 V_LCD0
+ 0.9
V_MID2 S1 to S106: 1/3 bias, I_O = ±20 µA
2/3 V_LCD0
– 0.9
2/3 V_LCD0
+ 0.9
Output middle level voltage*¹
V_MID3 S1 to S106: 1/3 bias, I_O = ±20 µA
1/3 V_LCD0
– 0.9
1/3 V_LCD0
+ 0.9
V
V_MID4 COM1 to COM4: 1/3 bias, I_O = ±100 µA
2/3 V_LCD0
– 0.9
2/3 V_LCD0
+ 0.9
V_MID5 COM1 to COM4: 1/3 bias, I_O = ±100 µA
1/3 V_LCD0
– 0.9
1/3 V_LCD0
+ 0.9
Oscillator frequency
Current drain
f_OSC
I_DD1
I_DD2
I_LCD1
I_LCD2
I_LCD3
I_LCD4
I_LCD5
OSC: R_OSC = 39 kΩ, C_OSC = 1000 pF
V_DD: Power-saving mode
V_DD: V_DD = 6.0 V, output open, f_OSC = 38 kHz
V_LCD: Power-saving mode
V_LCD: V_LCD = 6.0 V, output open, 1/2 bias, f_OSC = 38 kHz,
V_LCD0 = 0.70 V_LCD to 0.95 V_LCD
V_LCD: V_LCD = 6.0 V, output open, 1/2 bias, f_OSC = 38 kHz,
V_LCD0 = V_LCD
V_LCD: V_LCD = 6.0 V, output open, 1/3 bias, f_OSC = 38 kHz,
V_LCD0 = 0.70 V_LCD to 0.95 V_LCD
V_LCD: V_LCD = 6.0 V, output open, 1/3 bias, f_OSC = 38 kHz,
V_LCD0 = V_LCD
30.4
38
45.6 kHz
5
250
500
5
400
800
µA
350
700
300
600
250
500
Note: *1 Excluding the bias voltage generation divider resistors built in the V_LCD0, V_LCD1, V_LCD2, and V_SS. (See Figure 1.)
VLCD
VLCD0
VLCD1
VLCD2
VSS
CONTRAST
ADJUSTER
To the common segment drivers
Except these resistors
Figure 1
No. 7389-3/27