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PCA8551ATT/AJ
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P36
P37-P39
P40-P42
P43-P45
P46-P48
P49-P51
P52-P54
P55-P57
PCA8551
All informatio
n provided in this d
ocument is subje
ct to legal discla
imers.
© NXP Semiconduc
tors N.V
. 2015. All rights r
es
erved.
Product data sheet
Rev
.
2 — 24 March 2015
22 of 57
NXP Semiconductors
PCA8551
Automotive 36 × 4 L
CD segment driver
V
state1
(t) = V
SEGn
(t)
V
COM0
(t).
V
on(RMS)
= 0.745V
LCD
.
V
state2
(t) = V
SEGn
(t)
V
COM1
(t).
V
off(RMS)
= 0.333V
LCD
.
Fig 14.
Waveforms for the 1:2 multiplex
drive mode with
1
⁄
3
bias
DDD
VWDWH
&20
D:
DYHIRUPVDWGULYHU
E5HVXOWDQWZDYHIRUPV
DW/&'VHJPHQW
/&'VHJPHQWV
VWDWH
&20
VWDWH
VWDWH
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
6(*Q
6(*Q
7
IU
9
66
9
/&'
9
/&'
9
/&'
PCA8551
All informatio
n provided in this d
ocument is subje
ct to legal discla
imers.
© NXP Semiconduc
tors N.V
. 2015. All rights r
es
erved.
Product data sheet
Rev
.
2 — 24 March 2015
23 of 57
NXP Semiconductors
PCA8551
Automotive 36 × 4 L
CD segment driver
9.2.2.3
1:3 Multi
plex drive
mode
When three ba
ckplanes are pr
ovided in the LCD,
the 1:3 multiplex d
rive mode ap
plies, as
shown in
Figure 15
.
V
state1
(t) = V
SEGn
(t)
V
COM0
(t).
V
on(RMS)
= 0.638V
LCD
.
V
state2
(t) = V
SEGn
(t)
V
COM1
(t).
V
off(RMS)
= 0.333V
LCD
.
Fig 15.
Waveforms for the 1:3 multiplex
drive mode with
1
⁄
3
bias
DDD
VWDWH
&20
E5HVXOWDQWZDYHIRUPV
DW/&'VHJPHQW
/&'VHJPHQWV
VWDWH
&20
VWDWH
VWDWH
D:
DYHIRUPVDWGULYHU
&20
6(*Q
6(*Q
6(*Q
7
IU
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
PCA8551
All informatio
n provided in this d
ocument is subje
ct to legal discla
imers.
© NXP Semiconduc
tors N.V
. 2015. All rights r
es
erved.
Product data sheet
Rev
.
2 — 24 March 2015
24 of 57
NXP Semiconductors
PCA8551
Automotive 36 × 4 L
CD segment driver
9.2.2.4
1:4 Multi
plex drive
mode
When four backplanes are provided
in the LCD, the 1:4 multiplex drive mode applies as
shown in
Figure 16
.
V
state1
(t) = V
SEGn
(t)
V
COM0
(t).
V
on(RMS)
= 0.577V
LCD
.
V
state2
(t) = V
SEGn
(t)
V
COM1
(t).
V
off(RMS)
= 0.333V
LCD
.
Fig 16.
Waveforms for the 1:4 multiplex
drive mode with
1
⁄
3
bias
DDD
VWDWH
&20
E5HVXOWDQWZDYHIRUPV
DW/&'VHJPHQW
/&'VHJPHQWV
VWDWH
&20
VWDWH
VWDWH
&20
D:
DYHIRUPVDWGULYHU
&20
6(*Q
6(*Q
6(*Q
6(*Q
7
IU
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
/&'
9
66
9
/&'
9
/&'
9
/&'
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P36
P37-P39
P40-P42
P43-P45
P46-P48
P49-P51
P52-P54
P55-P57
PCA8551ATT/AJ
Mfr. #:
Buy PCA8551ATT/AJ
Manufacturer:
NXP Semiconductors
Description:
Flip Flops Automotive 36X4 LCD segment driver
Lifecycle:
New from this manufacturer.
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