PCA9620H/Q900/1,51 NXP Semiconductors, PCA9620H/Q900/1,51 Datasheet - Page 24

• Manufacturer Part Number: PCA9620H/Q900/1,51
• Description: LCD Drivers 480 SEGMENT LCD SEGMENT DRIVER
• Manufacturer: NXP Semiconductors

Specifications of PCA9620H/Q900/1,51

• Number Of Segments: 60
• Maximum Clock Frequency: 14500 Hz
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 105 C
• Package / Case: LQFP-80
• Maximum Supply Current: 200 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935291899518

NXP Semiconductors
PCA9620
Product data sheet
7.4.2.2 1:2 Multiplex drive mode
When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The
PCA9620 allows the use of
Figure
Fig 16. Waveforms for the 1:2 multiplex drive mode with
17.
V
V
V
state1
state2
on(RMS)
state 1
state 2
Sn+1
(t) = V
(t) = V
BP0
BP1
All information provided in this document is subject to legal disclaimers.
Sn
(t) = 0.791V
Sn
Sn
(t) − V
(t) − V
Rev. 1 — 9 December 2010
V
V
V
V
V
V
V
V
V
V
V
V
− V
− V
V
V
− V
− V
0 V
0 V
LCD
LCD
SS
LCD
LCD
SS
LCD
SS
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
BP0
BP1
/2
/2
/2
/2
/2
/2
1
. V
(t).
(t).
⁄
2
off(RMS)
bias or
(t) = 0.354V
1
⁄
3
(a) Waveforms at driver.
(b) Resultant waveforms
bias in this mode as shown in
Universal LCD driver for low multiplex rates
at LCD segment.
LCD
.
T
fr
1
⁄
2
bias (line inversion mode)
013aaa208
state 1
state 2
LCD segments
PCA9620
© NXP B.V. 2010. All rights reserved.
Figure 16
and
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