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LT3999EMSE#TRPBF PDF预览

LT3999EMSE#TRPBF

更新时间: 2024-10-01 19:12:23
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
16页 239K
描述
LT3999 - Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

LT3999EMSE#TRPBF 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:MSOP包装说明:LEAD FREE, PLASTIC, MSOP-10
针数:10Reach Compliance Code:compliant
风险等级:5.68Base Number Matches:1

LT3999EMSE#TRPBF 数据手册

 浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第2页浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第3页浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第4页浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第5页浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第6页浏览型号LT3999EMSE#TRPBF的Datasheet PDF文件第7页 
LT3999  
Low Noise, 1A, 1MHz  
Push-Pull DC/DC Driver  
with Duty Cycle Control  
FEATURES  
DESCRIPTION  
The LT®3999 is a monolithic, high voltage, high frequency  
DC/DC transformer driver providing isolated power in a  
n
Wide Input Operating Range: 2.7V to 36V  
n
Dual 1A Switches with Programmable Current Limit  
n
Programmable Switching Frequency: 50kHz to 1MHz small solution footprint.  
n
n
n
n
n
n
n
n
Frequency Synchronization Up to 1MHz  
The LT3999 has two 1A current limited power switches  
V Compensation Using Duty Cycle Control  
IN  
that switch out of phase. The duty cycle is programmable  
to adjust the output voltage. The switching frequency is  
programmed up to 1MHz and can be synchronized to an  
external clock for more accurate placement of switcher  
harmonics. The input operating range is programmed  
withtheprecisionundervoltageandovervoltagelockouts.  
The supply current is reduced to less than 1µA during  
shutdown. A user-defined RC time constant provides an  
adjustable soft-start capability by limiting the inrush cur-  
rent at start-up.  
Low Noise Topology  
Programmable Input Over and Undervoltage Lockout  
Cross Conduction Prevention Circuitry  
Programmable Soft-Start  
Low Shutdown Current: <1µA  
10-Lead MSOP and DFN Packages  
APPLICATIONS  
n
Low Noise Isolated Supplies  
n
Medical Instrument and Safety  
The LT3999 is available in a 10-lead MSOP and 3mm ×  
3mm DFN package with exposed pad.  
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.  
n
Distributed Power  
Multiple Output Supplies  
Positive-to-Negative Supplies  
Noise Immunity in Data Acquisition, RS232  
and RS485  
n
n
n
TYPICAL APPLICATION  
LT3999 Line Regulation with  
Duty Cycle Control  
12V to 12V, 10W Low Noise Isolated DC/DC Converter  
V
IN  
16  
15  
12V  
10µF  
16V  
V
IN  
15.3µH  
V
OUT  
12V  
SYNC  
SWA  
SWB  
14  
13  
12  
11  
10  
9
0.8A  
255k  
10k  
UVLO  
10µF  
16V  
I
= 400mA  
OUT  
OVLO/DC  
RDC  
I
= 200mA  
OUT  
LT3999  
15.8k  
I
= 800mA  
OUT  
3999 TA01a  
RT  
ILIM/SS  
RBIAS  
28k  
GND  
0.1µF 49.9k  
500kHz  
8
14 15  
10 11 12 13  
INPUT VOLTAGE (V)  
16 17 18  
3999 TA01b  
3999fa  
1
For more information www.linear.com/LT3999  

LT3999EMSE#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3999EMSE#PBF Linear

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LT3999 - Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control; Package: MSOP

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