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Datasheet > LTC3805EMSE#TRPBF
LTC3805EMSE#TRPBF PDF预览

LTC3805EMSE#TRPBF

更新时间： 2024-10-01 21:14:11
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
20页 256K
描述
LTC3805 - Adjustable Frequency Current Mode Flyback DC/DC Controller; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3805EMSE#TRPBF 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：HTSSOP, TSSOP10,.19,20
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.06其他特性：IT ALSO OPERATES WITH 36V TO 76V WITH AN EXTERNAL RESISTOR
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：9 V
最小输入电压：4.15 V标称输入电压：8 V
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP10,.19,20封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
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最大切换频率：700 kHz
技术：CMOS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：30宽度：3 mm
Base Number Matches：1

LTC3805EMSE#TRPBF 数据手册

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LTC3805  
Adjustable Frequency  
Current Mode Flyback  
DC/DC Controller  
Features  
Description  
n
V and V  
Limited Only by External Components  
The LTC®3805 is a current mode controller for flyback  
DC/DCconvertersdesignedtodriveanN-channelMOSFET  
in high input and output voltage converter applications.  
Operating frequency and slope compensation can be  
programmedbyexternalresistors.Programmableovercur-  
rent sensing protects the converter from short-circuits.  
Soft-start can be programmed using an external capacitor  
and the soft-start capacitor also programs an automatic  
restart feature.  
IN  
OUT  
n
n
Adjustable Slope Compensation  
Adjustable Overcurrent Protection with Automatic  
Restart  
Adjustable Operating Frequency (70kHz to 700kHz)  
with One External Resistor  
Synchronizable to an External Clock  
±±.5ꢀ Reference Accuracy  
Current Mode Operation for Excellent Line and Load  
Transient Response  
n
n
n
n
The LTC3805 provides ±±.5ꢀ output voltage accuracy  
and consumes only 360µA of quiescent current during  
normal operation and only 40µA during micropower start-  
up. Using a 9.5V internal shunt regulator, the LTC3805  
n
RUN Pin with Precision Threshold and Adjustable  
Hysteresis  
n
n
n
Programmable Soft-Start with One External Capacitor  
Low Quiescent Current: 360µA  
can be powered from a high V through a resistor or it  
IN  
Small ±0-Lead MSOP and 3mm × 3mm DFN  
can be powered directly from a low impedance DC voltage  
of 9V or less.  
applications  
The LTC3805 is available in the ±0-lead MSOP package  
and the 3mm × 3mm DFN package.  
n
Telecom Power Supplies  
n
42V and ±2V Automotive Power Supplies  
L,LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks,  
No R  
and ThinSOT are trademarks of Linear Technology Corporation.  
SENSE  
n
Isolated Electronic Equipment  
All other trademarks are the property of their respective owners.  
typical application  
36V – 72V to 5V/2A Nonisolated Flyback Converter  
Efficiency and Power Loss  
vs Load Current; VO = 5V  
V
OUT  
V
IN  
5V  
100  
90  
10  
36V TO  
72V  
V
= 48V  
AT 2A  
IN  
2.2µF  
×2  
221k  
100k  
100µF  
× 2  
80  
70  
60  
EFFICIENCY  
22µF  
RUN  
50  
40  
1
8.66k  
LOSS  
V
CC  
GATE  
OC  
30  
20  
10  
0
LTC3805  
1.33k  
3k  
I
TH  
71.5k  
I
SSFLT  
FS  
SENSE  
FB  
20k  
0.1µF  
0.1  
10  
0.01  
1
0.1  
SYNC GND  
470pF  
118k  
68mΩ  
13.7k  
LOAD CURRENT (A)  
3805 TA01b  
3805 TA01a  
3805fg  
1
1234567...20

中文翻译

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LTC3805EMSE#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3805EMSE#PBF Linear

类似代替

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