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参数资料
| 型号： | LT1377IS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ 8SOIC |
| 标准包装： | 100 |
| 类型： | 降压（降压），升压（升压），反相，Cuk，回扫，正向转换器 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 35 V |
| 输入电压： | 2.7 V ~ 25 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1327 (CN2011-ZH PDF) |
LT1372/LT1377
TYPICAL APPLICATIO N S N
Positive-to-Negative Converter with Direct Feedback
Dual Output Flyback Converter with Overvoltage Protection
+
+
?
47 μ F
MBRS130LT3
MAX I OUT
ON 4 S/S
V SW
+
+
R4
OFF
C3
0.0047 μ F
V IN
2.7V TO 16V
C1
22 μ F
5
V IN
ON 4 S/S V SW
LT1372/LT1377
NFB
V C GND
1 6, 7
C2
0.047 μ F
R1
2k
8
3
T1*
2 4
D2
P6KE-15A C4
D3
1N4148 1 ? 3
D1 R2
2.49k
1%
R3
2.49k
1%
*COILTRONICS CTX10-2 (407) 241-7876
?
I OUT V IN
0.3A 3V
0.5A 5V
0.75A 9V
–V OUT?
–5V
LT1372 ? TA03
+
OFF
C3 R3
0.0047 μ F 2k
R2
1.21k
1%
C1
22 μ F
V IN
2.7V TO 13V
2 5
FB V IN
8
LT1372/LT1377
3
NFB
V C GND
1 6, 7
C2
0.047 μ F
R1
13k
1%
2, 3
P6KE-20A ?
1N4148
6, 7
MBRS140T3
T1*
5
? 4
8
?
1
MBRS140T3
V OUT
15V
C4
47 μ F
C5
47 μ F
–V OUT
–15V
12.1k
1%
R5
2.49k
1%
*DALE LPE-4841-100MB (605) 665-9301
LT1372 ? TA04
Low Ripple 5V to – 3V “Cuk” ? Converter
90% Efficient CCFL Supply
V IN
5V
2
L1*
3
V OUT
–3V
250mA
C2
27pF
10
5mA MAX
LAMP
D1
1N4148
C1
22 μ F
10V
+
5
4
7
LT1372/LT1377
V IN V SW
S/S
GND NFB
8
3
1 ? ? 4
C2
47 μ F
16V
+
R1
1k
1%
C6
0.1 μ F
V IN
4.5V
TO 30V
+
10 μ F
5
4
3
Q1
2
C1
0.1 μ F
1
Q2
T1
PATENTS MAY APPLY
6
GND S
C5
0.0047 μ F
* SUMIDA CLS62-100L
** MOTOROLA MBR0520LT3
?
V C
1
D1**
R4
2k
C4
0.047 μ F
+
R2
4.99k
1%
C3
47 μ F
16V
LT1372 ? TA05
2.7V TO
5.5V +
ON
OFF
4
330 ?
2.2 μ F 1N5818
5
V IN
S/S V SW
LT1372/LT1377
V FB
8
2
L1
33 μ H
562 ? *
20k
DIMMING
D2
1N4148
10k
GND
V C
22k
0.1 μ F
6, 7
+
1
2 μ F
1N4148
OPTIONAL REMOTE
DIMMING
LT1372 ? TA06
C1 = WIMA MKP-20
L1 = COILCRAFT DT3316-333
Q1, Q2 = ZETEX ZTX849 OR ROHM 2SC5001
T1 = COILTRONICS CTX 110609
* = 1% FILM RESISTOR
DO NOT SUBSTITUTE COMPONENTS
COILTRONICS (407) 241-7876
COILCRAFT (708) 639-6400
CCFL BACKLIGHT APPLICATION CIRCUITS
CONTAINED IN THIS DATA SHEET ARE
COVERED BY U.S. PATENT NUMBER 5408162
AND OTHER PATENTS PENDING
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.
11
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