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부품번호 | BU2879AK 기능 |
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기능 | FL tube driver | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 5 페이지수
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
Standard ICs
•Measurement circuits
1000p
VEE
OSC
A
VDD
VSS
Fig.1
BU2879AK
VEE
VDD
n = Test pin
nA
VSS V
Fig.2
1000p
VEE
OSC
VDD
G1
VSS
Monitor
VEE
VDD
VSS
Fig.3
Fig.4
•Electrical characteristic curves
3.8
3.7
3.6
3.5
3.4
3.3
3.2
– 25
25
75
TEMPERATURE: Ta (°C)
Fig. 5 Supply current
temperature characteristics
54
50
46
42
38
34
30 – 25
25
75
TEMPERATURE: Ta (°C)
Fig. 6 “H” grid output current
temperature characteristics
16
15
14
13
12
11
10
– 25
25
75
TEMPERATURE: Ta (°C)
Fig.7 “H” segment output current
temperature characteristics
4
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
BU2879AK | FL tube driver | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |