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PDF BU2879AK Data sheet ( Hoja de datos )
| Número de pieza | BU2879AK | |
| Descripción | FL tube driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Standard ICs
FL tube driver
BU2879AK
The BU2879AK is a driver IC for fluorescent displays. It is equipped with 26 high-voltage withstand outputs and can
display from 11 segments of 15 characters to 16 segments of 8 characters. This IC is equipped with a key scanning
function, and general-purpose input pins, and is ideal for front panels in VTRs and other equipment. A serial interface
allows functions to be controlled from a microcomputer.
•Applications
VCRs
•Features
1) High withstanding voltage output.
2) Display modes: 11S × 15G ~ 16S × 8G.
3) Variable display luminance (7 steps).
4) 3-wire serial interface.
5) Key scanning function (6 × 4).
6) Internal pull-down resistance
(high voltage withstand output).
7) QFP 44 package.
•Absolute maximum ratings (Ta = 25°C, VSS = 0V)
Parameter
Symbol
Limits
Applied voltage 1
VDD – 0.3 ~ + 7.0
Applied voltage 2
VEE VDD + 0.3 ~ VDD – 40
Input voltage
Power dissipation
VIN – 0.3 ~ VDD + 0.3
Pd 850∗
Operating temperature
Topr
– 25 ~ + 75
Storage temperature
Tstg – 55 ~ + 125
Note) Operation is not guaranteed at these values.
Note) Power dissipation is reduced by 8.5mW for each increase in Ta of 1°C over 25°C.
∗ When mounted on a 70 × 70 × 1.6mm glass epoxy board
Unit
V
V
V
mW
°C
°C
•Recommended operating conditions (Ta = 25°C, VSS = 0V)
Parameter
Symbol Min. Typ. Max.
Operating power supply voltage 1
VDD 4.5 5.0 5.5
Operating power supply voltage 2
VEE VDD – 37 VDD – 35 VDD – 0
Unit
V
V
1
1 page  
Standard ICs
•External dimensions (Units: mm)
14.0 ± 0.3
10.0 ± 0.2
33 23
34 22
44
1
12
11
0.15 ± 0.1
0.8 0.35 ± 0.1 0.15
QFP44
BU2879AK
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet BU2879AK.PDF ] | |
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