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LT1372CN8#PBF
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LT1372CN8#PBF数据手册
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11
LT1372/LT1377
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of circuits as described herein will not infringe on existing patent rights.
TYPICAL APPLICATIONS N
U
Low Ripple 5V to –3V “Cuk”
Converter
LT1372/LT1377
V
IN
S/S
GND
GND S
V
SW
NFB
V
C
5
4
7
6
8
3
1
+
+
R4
2k
R2
4.99k
1%
R1
1k
1%
C4
0.047µF
C6
0.1µF
V
OUT
–3V
250mA
LT1372 • TA05
V
IN
5V
C3
47µF
16V
C1
22µF
10V
C2
47µF
16V
C5
0.0047µF
41
3
L1*
2
D1**
SUMIDA CLS62-100L
MOTOROLA MBR0520LT3
PATENTS MAY APPLY
*
**
+
Dual Output Flyback Converter with Overvoltage ProtectionPositive-to-Negative Converter with Direct Feedback
LT1372/LT1377
V
IN
FB
V
C
V
IN
2.7V TO 13V
1
3
8
52
4
6, 7
*DALE LPE-4841-100MB (605) 665-9301
GND
NFB
LT1372 • TA04
V
SW
S/S
P6KE-20A
1N4148
MBRS140T3
MBRS140T3
C1
22µF
R2
1.21k
1%
R1
13k
1%
C2
0.047µF
C3
0.0047µF
R3
2k
R5
2.49k
1%
R4
12.1k
1%
–V
OUT
–15V
V
OUT
15V
C4
47µF
C5
47µF
ON
OFF
2, 3
6, 7
5
T1*
4
8
1
+
+
+
LT1372/LT1377
V
IN
V
C
V
IN
2.7V TO 16V
1
3
8
5
4
6, 7
*COILTRONICS CTX10-2 (407) 241-7876
GND
NFB
LT1372 • TA03
V
SW
S/S
D2
P6KE-15A
D3
1N4148
D1
MBRS130LT3
C1
22µF
C2
0.047µF
C3
0.0047µF
R1
2k
R3
2.49k
1%
R2
2.49k
1%
–V
OUT
–5V
C4
47µF
ON
OFF
V
IN
3V
5V
9V
I
OUT
0.3A
0.5A
0.75A
2
1
4
T1*
3
MAX I
OUT
+
+
D2
1N4148
Q2
1N5818
D1
1N4148
562*
20k
DIMMING
10k
330
10
12345
Q1
10µF
C1
0.1µF
V
IN
4.5V
TO 30V
V
IN
V
SW
V
FB
V
C
GND
S/S
5
84
2
16, 7
LT1372/LT1377
2µF
0.1µF
L1
33µH
T1
LT1372 • TA06
C1 = WIMA MKP-20
L1 = COILCRAFT DT3316-333
T1 = COILTRONICS CTX 110609
* = 1% FILM RESISTOR
DO NOT SUBSTITUTE COMPONENTS
Q1, Q2 = ZETEX ZTX849 OR ROHM 2SC5001
LAMP
C2
27pF
5mA MAX
2.2µF
2.7V TO
5.5V
22k
1N4148
OPTIONAL REMOTE
DIMMING
COILTRONICS (407) 241-7876
COILCRAFT (708) 639-6400
ON
OFF
CCFL BACKLIGHT APPLICATION CIRCUITS
CONTAINED IN THIS DATA SHEET ARE
COVERED BY U.S. PATENT NUMBER 5408162
AND OTHER PATENTS PENDING
+
+
+
90% Efficient CCFL Supply

LT1372CN8#PBF 数据手册

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LT1372CN8 数据手册

Linear Technology(凌力尔特)
ADI(亚德诺)
Linear Technology(凌力尔特)
Linear Technology 的各种高效直流 - 直流转换器可作为升压(增压)调节器、降压(减压)调节器或反相调节器。 这些高度集成设备只需极少的外部元件,即可提供全面的调节器功能和多种组合功能,如微功耗操作、低电量检测、可调电流限制以及关闭/启用输入。### 开关电压调节器,Linear Technology**Linear Technology** 的同步型和非同步型内部开关调节器 IC 产品系列效率高、输入电压范围广、且开关频率高达 4 MHz。 该系列控制器包括多种配置:从降压(下降),升压(上压)、降压-升压、正向、隔离、反相和反激控制器。 反激、正向和隔离控制器(一次侧和二次侧)提供解决方案,帮助更换背板型电源转换中使用的直流/直流砖型转换器。
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