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BU2879AK Datasheet

  • BU2879AK

  • FL tube driver

  • 5頁

  • ROHM

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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.
鈥?/div>
Applications
VCRs
鈥?/div>
Features
1) High withstanding voltage output.
2) Display modes: 11S
脳
15G ~ 16S
脳
8G.
3) Variable display luminance (7 steps).
4) 3-wire serial interface.
5) Key scanning function (6
脳
4).
6) Internal pull-down resistance
(high voltage withstand output).
7) QFP 44 package.
鈥?/div>
Absolute maximum ratings (Ta = 25擄C, V
Parameter
Applied voltage 1
Applied voltage 2
Input voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
DD
V
EE
V
IN
Pd
Topr
Tstg
SS
= 0V)
Limits
鈥?0.3 ~ + 7.0
V
DD
+ 0.3 ~ V
DD
鈥?40
鈥?0.3 ~ V
DD
+ 0.3
850
鈭?/div>
鈥?25 ~ + 75
鈥?55 ~ + 125
Unit
V
V
V
mW
擄C
擄C
Note) Operation is not guaranteed at these values.
Note) Power dissipation is reduced by 8.5mW for each increase in Ta of 1擄C over 25擄C.
鈭?/div>
When mounted on a 70
脳
70
脳
1.6mm glass epoxy board
鈥?/div>
Recommended operating conditions (Ta = 25擄C, V
Parameter
Operating power supply voltage 1
Operating power supply voltage 2
Symbol
V
DD
V
EE
SS
= 0V)
Min.
4.5
Typ.
5.0
V
DD
鈥?35
Max.
5.5
V
DD
鈥?0
Unit
V
V
V
DD
鈥?37
1

BU2879AK 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • PMIC - 顯示器驅(qū)動器

  • -

  • 真空熒光 (VF)

  • 16 段

  • 3 線串口

  • 8 個字符

  • 5mA

  • 4.5 V ~ 5.5 V

  • -25°C ~ 75°C

  • 表面貼裝

  • 44-QFP

  • 44-QFP

  • 帶卷 (TR)

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