LC75843UGA Datasheet, PDF (28/35 Pages) ON Semiconductor – Duty General-Purpose LCD Driver

PWM output waveforms
LC75843UGA
P1 to P4
(PWM output Ch1)
(1)
P2 to P4
(PWM output Ch2)
P2 to P4
(PWM output Ch3)
P1 to P4
(PWM output Ch1)
(2)
P2 to P4
(PWM output Ch2)
P2 to P4
(PWM output Ch3)
P1 to P4
(PWM output Ch1)
(3)
P2 to P4
(PWM output Ch2)
P2 to P4
(PWM output Ch3)
(56/64)Tp
(48/64)Tp
(40/64)Tp
(8/64)Tp
(16/64)Tp
(24/64)Tp
(32/64)Tp
(32/64)Tp
(32/64)Tp
Tp
(56/64)Tp
(48/64)Tp
(40/64)Tp
(8/64)Tp
(16/64)Tp
(24/64)Tp
(32/64)Tp
(32/64)Tp
(32/64)Tp
Tp
Tp= ¹
fp
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
W10
1
1
1
W11
1
1
1
Control data
W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33
1
0
1
1
1
1
1
1
0
1
1
1
1
0
1
0
0
0
1
1
1
1
0
0
1
1
1
0
1
1
1
0
1
1
1
1
1
0
1
1
1
1
W34 W35
0
1
1
0
1
0
PWM output
waveforms
(1)
(2)
(3)
Control data
PWM output waveform frame frequency fp[Hz]
PF0
PF1
PF2
PF3
Internal oscillator operating mode
(The control data OC is 0,
External clock operating mode
(The control data OC is 1,
0
0
0
0
fosc=300[kHz]typ)
fosc/1536
and EXF is 0, fCK1=300[kHz]typ)
fCK1/1536
1
0
0
0
fosc/1408
fCK1/1408
0
1
0
0
fosc/1280
fCK1/1280
1
1
0
0
fosc/1152
fCK1/1152
0
0
1
0
fosc/1024
fCK1/1024
1
0
1
0
fosc/896
fCK1/896
0
1
1
0
fosc/768
fCK1/768
1
1
1
0
fosc/640
fCK1/640
0
0
0
1
fosc/512
fCK1/512
1
0
0
1
fosc/384
fCK1/384
0
1
0
1
fosc/256
fCK1/256
Note: When is setting (PF0, PF1, PF2, PF3)=(1, 1, 0, 1) and (X, X, 1, 1) the frame frequency is same as
frame frequency at the time of the (PF0, PF1, PF2, PF3)=(1, 0, 1, 0) setting (fosc/896, fCK1/896).
X:don’t care
No.A2226-28/35