BU97941FV_15 Datasheet, PDF (3/27 Pages) Rohm – Multifunction LCD Segment Driver

BU97941FV MAX 104 segments (SEG26×COM4)
●Absolute Maximum Ratings (VSS=0V)
Item
Symbol
Ratings
Unit
Remarks
Power supply Voltage1 VDD
-0.3 to +4.5
V Power supply
Power supply Voltage2 VLCD
-0.5 to +7.0
V Voltage for Liquid crystal Display
Power supply Voltage2
Power Dissipation
VLED
Pd
-0.5 to +7.0
0.8^*1
V Voltage for LED driving port terminal
W
Input Voltage Range
Operating Temperature
Range
Storage Temperature
Range
Output Current
VIN
Topr
Tstg
Iout1
-0.5 to VDD+0.5
-40 to +85
-55 to +125
5
V
℃
℃
mA SEG Output
Iout2
5
mA COM Output
Iout3
50
mA LED Output (per 1 port)
*Decreases 8mW per 1℃ when using at 1 Ta=25℃ or higher. （During ROHM standard board mounting）
（Board size：74.2mm×74.2mm×1.6mm Material：FR4 Glass-epoxy board Copper foil： Land pattern only）
●Recommended Operating Ratings(Ta=-40°C to +85°C,VSS=0V)
Item
Symbol MIN
TYP
MAX
Power supply Voltage1
VDD
1.8
-
3.6
Power supply Voltage2
VLCD
2.7
-
5.5
Output Current
Iout1
-
-
25
Iout2
-
-
100
Unit
Remarks
V Power supply
V Voltage for Liquid crystal Display
mA LED Output (per LED1 port)
mA LED Output (LED port current total sum)
●Electrical Characteristics
DC Characteristics (Ta=-40°C to +85°C、VDD=1.8V to 3.6V、VLCD=2.7V to 5.5V、VSS=0V )
Item
Symbol
Limit Value
Unit
MIN
TYP
MAX
Condition
“H” level input voltage
VIH 0.8VDD -
VDD
V SD, SCL, CSB
“L” level input voltage
VIL
VSS
-
0.2VDD V SD, SCL, CSB
Hysteresis width
VH
-
0.2
-
V SCL, VDD=3.3V、Ta=25°C
“H” level input current
IIH1
-
-
5
uA
SD,SCL, CSB,
VI=3.6V
LED off leak
OFF LEAK
5
0
5
uA LED VI=5.5V
“H” level output voltage
VOH1
VLCD
-0.4
-
-
V
Iload=-50uA, VLCD=5.0V
SEG0 to SEG25
(*2)
VOH2
VLCD
-0.4
-
-
V
Iload=-50uA, VLCD=5.0V、
COM0 to COM3
VOL1
-
-
0.4
V
Iload= 50uA, VLCD=5.0V、
SEG0 to SEG25
“L” level output voltage
(*2)
VOL2
-
-
0.4
V
Iload= 50uA, VLCD=5.0V、
COM0 to COM3
VOL4
-
0.11
0.5
V
Iload=20mA、VLCD=5.0V、
LED1 to 4
output voltage (*2)
VOUT1 2.73 3.33
3.93
VOUT2 1.07 1.67
2.27
V
Iload=+/-50uA, VLCD=5.0V, SEG0 to 25,
COM0 to 3
V
Iload=+/-50uA, VLCD=5.0V, SEG0 to 25,
COM0 to 3
IstVDD
-
3
10
uA
Input pin ALL ‟L‟,
Display off, Oscillation off
IstVLCD -
0.5
5
uA
Input pin ALL ‟L‟,
Display off, Oscillation off
Supply current (*1)
IVDD1
-
8
15
uA
VDD=3.3V、Ta=25°C、
1/3bias、fFR=64Hz、Output open
IVLCD1
-
10
15
uA
VLCD=5.0V、Ta=25°C、
1/3bias、fFR=64Hz、Output open
＊1 During Power save mode 1、Frame inversion.
＊2 Iload：When setting the load of 1 pin only.
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TSZ02201-0A0A2D300080-1-2
10.Apr.2015 Rev.004