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LT3748EMS#PBF

更新时间： 2024-11-06 19:58:31
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
34页 526K
描述
LT3748 - 100V Isolated Flyback Controller; Package: MSOP; Pins: 16; Temperature Range: -40°C to 85°C

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中文翻译

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LT3748EMS#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP, TSSOP12/16,.19,20
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：2.86模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE最大输入电压：100 V
最小输入电压：5 V标称输入电压：10 V
JESD-30 代码：R-PDSO-G12JESD-609代码：e3
长度：4.039 mm湿度敏感等级：1
功能数量：1端子数量：12
最高工作温度：125 °C最低工作温度：
标称输出电压：7 V封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP12/16,.19,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：225认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：SINGLE
技术：BIPOLAR温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LT3748EMS#PBF 数据手册

 浏览型号LT3748EMS#PBF的Datasheet PDF文件第2页浏览型号LT3748EMS#PBF的Datasheet PDF文件第3页浏览型号LT3748EMS#PBF的Datasheet PDF文件第4页浏览型号LT3748EMS#PBF的Datasheet PDF文件第5页浏览型号LT3748EMS#PBF的Datasheet PDF文件第6页浏览型号LT3748EMS#PBF的Datasheet PDF文件第7页 
LT3748  
100V Isolated  
Flyback Controller  
Features  
Description  
TheLT®3748isaswitchingregulatorcontrollerspecifically  
designed for the isolated flyback topology and capable of  
high power. It drives a low side external N-channel power  
MOSFET from an internally regulated 7V supply. No third  
winding or opto-isolator is required for regulation as the  
part senses the isolated output voltage directly from the  
primary-side flyback waveform.  
n
5V to 100V Input Voltage Range  
1.9A Average Gate Drive Source and Sink Current  
Boundary Mode Operation  
No Transformer Third Winding or Opto-Isolator  
n
n
n
Required for Regulation  
Primary-Side Winding Feedback Load Regulation  
n
n
V
Set with Two External Resistors  
CC  
OUT  
n
n
n
n
INTV Pin for Control of Gate Driver Voltage  
The LT3748 utilizes boundary mode to provide a small  
magnetic solution without compromising load regulation.  
Operatingfrequencyissetbyloadcurrentandtransformer  
magnetizing inductance. The gate drive of the LT3748  
combined with a suitable external MOSFET allow it to  
deliver load power up to several tens of watts from input  
voltages as high as 100V.  
Programmable Soft Start  
Programmable Undervoltage Lockout  
Available in MSOP Package  
applications  
n
Isolated Telecom Converters  
High Power Automotive Supplies  
Isolated Industrial Power Supplies  
Military and High Temperature Applications  
The LT3748 is available in a high voltage 16-lead MSOP  
package with four leads removed.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 5438499 and 7471522.  
n
n
n
typical application  
25W, 12V Output, Isolated Telecom Supply  
Output Load and Line Regulation  
+
V
12V  
2A  
OUT  
4:1  
12.6  
12.4  
V
IN  
36V TO 72V  
10µF  
412k  
100µF  
60.8µH  
243k  
3.8µH  
V
IN  
EN/UVLO  
–
V
R
15.4k  
OUT  
12.2  
12.0  
FB  
R
REF  
6.04k  
LT3748  
11.8  
11.6  
11.4  
TC  
SS  
GATE  
V
V
V
= 72V  
= 48V  
= 36V  
IN  
IN  
IN  
SENSE  
V
C
GND INTV  
CC  
0.033Ω  
0
0.5  
1.0  
1.5  
2.0  
56.2k  
10k  
2nF  
3748 TA01a  
LOAD CURRENT (A)  
4.7µF  
4700pF  
3748 TA01b  
3748fb  
1
For more information www.linear.com/LT3748  
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中文翻译

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LT3748EMS#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3748EMS#TRPBF Linear

完全替代

 LT3748 - 100V Isolated Flyback Controller; Package: MSOP; Pins: 16; Temperature Range: -40
LT3748IMS#TRPBF Linear

完全替代

 LT3748 - 100V Isolated Flyback Controller; Package: MSOP; Pins: 16; Temperature Range: -40
LT3748IMS#PBF Linear

类似代替

 LT3748 - 100V Isolated Flyback Controller; Package: MSOP; Pins: 16; Temperature Range: -40

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