BU91797MUF-M Datasheet, PDF (3/27 Pages) Rohm – Low Duty LCD Segment Driver for Automotive application

BU91797MUF-M MAX 144 segments (SEG36×COM4)
Datasheet
Absolute Maximum Ratings (VSS=0V)
Parameter
Symbol
Ratings
Unit
Remarks
Maximum Voltage1
VDD
-0.5 to +7.0
V Power Supply
Maximum Voltage2
Power Dissipation
VLCD
Pd
-0.5 to VDD
0.93^(Note1)
V LCD Drive Voltage
W
Input Voltage Range
VIN
Operational Temperature
Range
Topr
Storage Temperature Range Tstg
-0.5 to VDD+0.5
V
-40 to +105
°C
-55 to +125
°C
(Note1) Derate by 9.3mW/°C when operating above Ta=25°C (when mounted in ROHM’s standard board).
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions (Ta=-40°C to +105°C, VSS=0V)
Parameter
Symbol
Ratings
Unit
Min
Typ
Max
Power Supply Voltage1
VDD
2.5
-
6.0
V
Power Supply Voltage2
VLCD
0
- VDD-2.4 V
Remarks
Power Supply
LCD Drive Voltage, VDD-VLCD  2.4V
Electrical Characteristics
DC Characteristics (VDD=2.5V to 6.0V, VLCD=0V, VSS=0V, Ta=-40°C to +105°C, unless otherwise specified)
Parameter
Limits
Symbol
Unit
Min
Typ
Max
Conditions
“H” Level Input Voltage
VIH 0.7VDD -
VDD V SDA,SCL,OSCIN
“L” Level Input Voltage
“H” Level Input Current
VIL
VSS
- 0.3VDD V SDA,SCL,OSCIN
IIH
-
-
1
µA SDA,SCL,OSCIN^(Note2), TEST2
“L” Level Input Current
IIL
-1
-
-
µA SDA,SCL,OSCIN, TEST2
SDA “L” Level Output Voltage VOL_SDA 0
-
0.4
V Iload = 3mA
LCD Driver On
Resistance
SEG
COM
RON
-
3
-
kΩ
Iload=±10µA
RON
-
3
-
kΩ
VLCD Supply Voltage
VLCD
0
- VDD-2.4 V VDD-VLCD2.4V
Standby Current
IDD1
-
-
5
µA Display off, Oscillation off
Power Consumption
(Note2) For external clock mode only.
IDD2
VDD=3.3V, VLCD=0V, Ta=25°C
-
12.5
30 µA Power save mode1, FR=71Hz
1/3 bias, Frame inverse
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21.Dec.2015 Rev.001