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LT1737CS#TR PDF预览

LT1737CS#TR

更新时间： 2024-11-18 13:09:39
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
28页 321K
描述
LT1737 - High Power Isolated Flyback Controller; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C

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中文翻译

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LT1737CS#TR 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP16,.25
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
最大输入电压：20 V最小输入电压：4.5 V
标称输入电压：14 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：9.9 mm
湿度敏感等级：1功能数量：1
端子数量：16最大输出电流：0.001 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：SINGLE最大切换频率：250 kHz
技术：BIPOLAR端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：3.9 mmBase Number Matches：1

LT1737CS#TR 数据手册

 浏览型号LT1737CS#TR的Datasheet PDF文件第2页浏览型号LT1737CS#TR的Datasheet PDF文件第3页浏览型号LT1737CS#TR的Datasheet PDF文件第4页浏览型号LT1737CS#TR的Datasheet PDF文件第5页浏览型号LT1737CS#TR的Datasheet PDF文件第6页浏览型号LT1737CS#TR的Datasheet PDF文件第7页 
LT1737  
High Power  
Isolated Flyback Controller  
U
FEATURES  
DESCRIPTIO  
■
Drives External Power MOSFET  
The LT®1737 is a monolithic switching regulator control-  
ler specifically designed for the isolated flyback topology.  
It drives the gate of an external MOSFET and is generally  
powered from a DC supply voltage. Output voltage feed-  
back information may be supplied by a variety of methods  
including a third transformer winding, the primary wind-  
ing or even direct DC feedback (see Applications Informa-  
tion). Its gate drive capability, coupled with a suitable  
external MOSFET and other power path components, can  
deliver load power up to tens of Watts.  
■
Supply Voltage Range: 4.5V to 20V  
■
Flyback Voltage Limited Only by  
External Components  
■
Senses Output Voltage Directly from Primary Side  
Winding—No Optoisolator Required  
■
Switching Frequency from 50kHz to 250kHz  
with External Capacitor  
■
Moderate Accuracy Regulation Without User Trims  
■
Regulation Maintained Well into Discontinuous Mode  
■
External ISENSE Resistor  
The LT1737 has a number of features not found on other  
isolated flyback controller ICs. By utilizing current mode  
switchingtechniques, itprovidesexcellentACandDCline  
regulation. Its unique control circuitry can maintain regu-  
lation well into discontinuous mode in most applications.  
Optionalloadcompensationcircuitryallowsforimproved  
load regulation. An optional undervoltage lockout pin  
halts operation when the application input voltage is too  
low. An optional external capacitor implements a soft-  
start function.  
■
Optional Load Compensation  
■
Optional Undervoltage Lockout  
■
Shutdown Feature Reduces IQ to 50µA Typ  
■
Available in 16-Pin GN and SO Packages  
U
APPLICATIO S  
■
Isolated Flyback Switching Regulators  
Medical Instruments  
Instrumentation Power Supplies  
■
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
12V-18V to Isolated 15V Converter  
R2  
35.7k  
1%  
V
IN  
+
C1  
22µF  
T1  
D1  
COILTRONICS  
CTX150-4  
D2  
MBRS1100  
BAS16  
Q1  
2N3906  
V
= 15V  
= 300mA  
OUT  
OUT  
I
•
+
240k  
33k  
R4  
7.5k  
C2  
33µF  
150µH  
150µH  
•
C3  
0.1µF  
UVLO  
V
CC  
M1  
FB  
GATE  
IRFL014  
LT1737  
ENDLY MINENAB R  
V
C
I
SENSE  
R3  
3.01k  
1%  
OSCAP  
t
R
SGND  
PGND  
R1  
0.27Ω  
ON  
OCMP  
CMPC  
NOTE: SEE APPLICATIONS  
75k  
150k 100k  
4.7k  
0.1µF  
1nF  
47pF  
INFORMATION FOR ADDITIONAL  
COMPONENT SPECIFICATIONS  
1737 TA01  
1737f  
1
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中文翻译

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