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부품번호 | BA3899 기능 |
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기능 | EL driver for portable sets | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 8 페이지수
Standard ICs
EL driver for portable sets
BA3899F
The BA3899F is an IC developed for EL drive applications. It uses a more compact interface than transformer sys-
tems, and is ideal for use in thin sets.
•Applications
Pagers, electronic notebooks and other portable devices
•Features
1) Drive oscillation frequency can be set using external capacitance.
2) Equipped with standby control pin.
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power dissipation
VCC 8.0
Pd 450∗
Operating temperature
Topr
– 10 ~ + 60
Storage temperature
Tstg – 55 ~ + 125
Maximum applied voltage
VST
∗ Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.
8.0
•Recommended operating conditions (Ta = 25°C)
Unit
V
mW
°C
°C
V
Parameter
Power supply voltage
Symbol Min. Typ. Max. Unit
VCC 1.0 5.0 7.0 V
•Block diagram
SW1
8
SW2
7
VCC STBY
65
RSW2
STBY
1
GND
2
N.C.
OSC1
3
C1
OSC2
4
C2
1
Standard ICs
•Application example
EL 16000pF
D1
ROHM: 1SS376
R1 2k
Q2
Q1
L1
1.5mH (TOKO: D73LC)
ROHM: 2SC4061KP
SANYO: 2SC3645T
+
2.2µF
100k
8 SW1
7 SW2
6 VCC
5 STBY
BA3899F
∗
VCC = 5V
RSW2
STBY
OSC1
OSC2
RX
300k
1 GND
2 N.C.
3 C1
4 C2
C1
8200pF ± 10%
C2
1500pF ± 10%
Fig. 2
∗ Because of the characteristics of the EL element, continuous application of particularly high DC power supply voltage can shorten the lifetime of the
element. To avoid this, we recommend inserting a switch in the power supply line.
4
4페이지 Standard ICs
•Electrical characteristic curves
10
C1 = 0.033µF
9 C2 = 1500pF
VST = 5V
8 Rx = ∞
7
75°C
6
5
4
– 25°C
3
25°C
2
1
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VCC (V)
Fig. 6 Supply current (when used
as stand-alone unit) vs.
power supply voltage
250
75°C
200
25°C
150
– 25°C
100
50
VC1 = 1.0V
VSW1 = 0V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VCC (V)
Fig. 8 SW1 sink current vs.
power supply voltage
10
9
8
7
6
5
4
3
2
1
0
01
VC1 = 1.0V
VSW1 = 0V
VST = 5V
75°C
– 25°C
25°C
2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VCC (V)
Fig. 10 SW2 source current vs.
power supply voltage
BA3899F
fSW1 75°C
10k – 25°C
25°C
C1 = 0.033µF
C2 = 1500pF
1k Rx = ∞
100
fSW2
75°C
– 25°C
25°C
012345678
INPUT VOLTAGE: VCC (V)
Fig. 7 Oscillation frequency of C1
and C2 pins vs. power supply
voltage
3.0
VC1 = 0V
VSW1 = 1.0V
VST = 5V
2.0
75°C
25°C
1.0
– 25°C
10
0
01
2345678
INPUT VOLTAGE: VCC (V)
9 10
Fig. 9 SW1 source current vs.
power supply voltage
1000
900
800
VCC = 5V
VSW2 = 0.2V
VST = 0V
700
600 75°C
500
400
25°C
– 25°C
300
200
100
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VCC (V)
Fig. 11 SW2 pull-down resistance vs.
power supply voltage
7
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ BA3899.PDF 데이터시트 ] |
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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 ] |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |