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LT1424CN8-5#PBF PDF预览

LT1424CN8-5#PBF

更新时间： 2024-11-26 13:09:31
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
16页 145K
描述
LT1424-5 - Isolated Flyback Switching Regulator with 5V Output; Package: PDIP; Pins: 8; Temperature Range: 0°C to 70°C

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LT1424CN8-5#PBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.15Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：20 V
最小输入电压：3.1 V标称输入电压：5 V
JESD-30 代码：R-PDIP-T8JESD-609代码：e3
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：最大输出电流：1.9 A
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装等效代码：DIP8,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：3.937 mm
子类别：Switching Regulator or Controllers表面贴装：NO
切换器配置：BUCK最大切换频率：320 kHz
技术：BIPOLAR温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

LT1424CN8-5#PBF 数据手册

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LT1424-5  
Isolated Flyback  
Switching Regulator  
with 5V Output  
U
FEATURES  
DESCRIPTIO  
The LT®1424-5 is a monolithic high power switching  
regulator specifically designed for the isolated flyback  
topology. No “third winding” or optoisolator is required;  
the integrated circuit senses the isolated output voltage  
directly from the primary side flyback waveform. A high  
current, high efficiency switch is included on the die along  
with all oscillator, control and protection circuitry.  
■
No Transformer “Third Winding” or Optoisolator  
Required  
■
Designed for Use with 1:1 Ratio Transformers  
■
Fixed, Application Specific 5V Output Voltage  
■
Regulation Maintained Well into Discontinuous  
Mode (Light Load)  
■
Load Compensation Provides Excellent  
Load Regulation  
The LT1424-5 operates with input supply voltages from  
3V to 20V and draws only 7mA quiescent current. It can  
deliver up to 400mA at 5V with no external power devices.  
By utilizing current mode switching techniques, it pro-  
vides excellent AC and DC line regulation.  
■
Available in 8-Pin PDIP and SO Packages  
■
Operating Frequency: 285kHz  
U
APPLICATIO S  
TheLT1424-5hasanumberoffeaturesnotfoundonother  
switching regulator ICs. Its unique control circuitry can  
maintain regulation well into discontinuous mode. Load  
compensation circuitry allows for improved load regula-  
tion. An externally activated shutdown mode reduces total  
supply current to 20µA typical for standby operation.  
■
Isolated Communication Supplies  
■
Industrial Automation  
■
Instrumentation Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
5V Output Isolated Power Supply  
Load Regulation  
5.25  
330pF  
47Ω  
ISOLATION  
BARRIER  
MBRS130LT3  
5V  
T1  
5V  
400mA  
+
C1  
100µF  
10V  
0.1µF  
6
3
4
1N5248  
47Ω  
330pF  
•
5.00  
+
C2  
1
2
8
7
SHDN  
R
1.8k  
100µF  
CCOMP  
V
IN  
10V  
V
C
•
•
MBR0540T4  
7
LT1424-5  
1
2
3
4
6
5
OUT  
COM  
SYNC  
SGND  
V
SW  
PGND  
1000pF  
1424-5 TA01  
0.1µF  
C1, C2: AVX TPS D107M010R0080  
T1: DALE LPE-4841-A307  
INPUT  
COM  
4.75  
0
100  
200  
300  
400  
OUTPUT CURRENT (mA)  
1424-5 TA02  
1
1234567...16

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