pca8576d NXP Semiconductors, pca8576d Datasheet - Page 9

• Manufacturer Part Number: pca8576d
• Description: Automotive 40 X 4 Lcd Segment Driver For Low Multiplex Rates Up To 1 4
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA8576D
Product data sheet
7.4.1 Static drive mode
7.4 LCD drive mode waveforms
The static LCD drive mode is used when a single backplane is provided in the LCD. The
backplane (BPn) and segment drive (Sn) waveforms for this mode are shown in
Fig 5.
(1) V
(2) V
(3) V
(4) V
Static drive mode waveforms
state1
on(RMS)
state2
off(RMS)
(t) = V
(t) = V
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= 0 V.
= V
Sn
Sn+1
LCD
(t)  V
.
(t)  V
state 1
state 2
Sn+1
Automotive 40 x 4 LCD segment driver for low multiplex rates
BP0
Rev. 1 — 4 April 2011
Sn
BP0
BP0
(t).
−V
−V
V
V
V
V
V
(t).
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
SS
SS
SS
0 V
0 V
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
T
fr
state 1
(on)
LCD segments
mgl745
state 2
(off)
PCA8576D
© NXP B.V. 2011. All rights reserved.
Figure
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5.