BU91799KV-M Datasheet, PDF (4/29 Pages) Rohm – Low Duty LCD Segment Driver for Automotive Application

BU91799KV-M MAX 200 segments (SEG50×COM4)
Electrical Characteristics – continued
Oscillation Characteristics
(VDD=2.5 to 6.0V, VLCD=2.5 to 6.0V, VSS=0V, Ta=-40°C to +105°C, unless otherwise specified)
Parameter
Limits
Symbol
Unit
Min
Typ
Max
Conditions
Frame Frequency1
fCLK1
56
80
112
Hz
FR = 80Hz setting,
VDD=2.5V to 6.0V, Ta=-40°C to +105°C
Frame Frequency2
fCLK2
70
80
90 Hz FR = 80Hz setting, VDD=3.3V, Ta=25°C
Frame Frequency3
Frame Frequency4
External Clock Rise Time
fCLK3
fCLK4
tr
77.5 87.5 97.5 Hz FR = 80Hz setting, VDD=5.0V, Ta=25°C
67.5
87.5
108
Hz
FR = 80Hz setting, VDD=5.0V,
Ta=-40°C to +105°C
-
-
0.3 µs
External Clock Fall Time
External Frequency
tf
-
fEXCLK
15
-
0.3
µs _{External clock mode (OSCIN)(Note)}
-
300 KHz
External Clock Duty
tdty
30
50
70
%
(Note) <Frame frequency calculation at external clock mode>
DISCTL 80HZ setting: Frame frequency [Hz] = external clock [Hz] / 512
DISCTL 71HZ setting: Frame frequency [Hz] = external clock [Hz] / 576
DISCTL 64HZ setting: Frame frequency [Hz] = external clock [Hz] / 648
DISCTL 53HZ setting: Frame frequency [Hz] = external clock [Hz] / 768
【Reference Data】
110
100
90
80
VDD = 6.0V
VDD = 5.0V
VDD = 3.3V
VDD = 2.7V
70
60
50
-40 -20
0 20 40 60
Temperature [°C]
80 100
Figure 4.Typical Temperature Characteristics
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TSZ02201-0P4P0D301050-1-2
8. Feb. 2016 Rev.001