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LT3782AIUFD PDF预览

LT3782AIUFD

更新时间： 2024-09-24 05:43:35
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
页数 文件大小 规格书
20页 232K
描述
2-Phase Step-Up DC/DC Controller

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中文翻译

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LT3782AIUFD 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC28,.16X.2,20
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.12Is Samacsys：N
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：40 V
最小输入电压：6 V标称输入电压：13 V
JESD-30 代码：R-PQCC-N28JESD-609代码：e0
长度：5 mm功能数量：1
端子数量：28最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.07 A
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC28,.16X.2,20封装形状：RECTANGULAR
封装形式：CHIP CARRIER认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：533 kHz技术：BIPOLAR
温度等级：AUTOMOTIVE端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD宽度：4 mm
Base Number Matches：1

LT3782AIUFD 数据手册

 浏览型号LT3782AIUFD的Datasheet PDF文件第2页浏览型号LT3782AIUFD的Datasheet PDF文件第3页浏览型号LT3782AIUFD的Datasheet PDF文件第4页浏览型号LT3782AIUFD的Datasheet PDF文件第5页浏览型号LT3782AIUFD的Datasheet PDF文件第6页浏览型号LT3782AIUFD的Datasheet PDF文件第7页 
LT3782A  
2-Phase Step-Up  
DC/DC Controller  
FEATURES  
DESCRIPTION  
The LT®3782A is a current mode 2-phase step-up DC/DC  
converter controller. Its high switching frequency (up to  
500kHz) and 2-phase operation reduce system filtering  
capacitance and inductance requirements.  
n
2-Phase Operation Reduces Required Input and  
Output Capacitance  
n
Programmable Switching Frequency:  
150kHz to 500kHz  
6V to 40V Input Range  
10V Gate Drive with V ≥13V  
High Current Gate Drive (4A)  
Programmable Soft-Start and Current Limit  
Programmable Slope Compensation for  
High Noise Immunity  
MOSFET Gate Signals with Programmable  
Falling Edge Delay for External Synchronous  
Drivers  
n
With 10V gate drive (V ≥13V) and 4A peak drive current,  
CC  
n
CC  
the LT3782A can drive most industrial grade high power  
MOSFETs with high efficiency. For synchronous applica-  
tions, the LT3782A provides synchronous gate signals  
with programmable falling edge delay to avoid cross  
conduction when using external MOSFET drivers. Other  
features include programmable undervoltage lockout,  
soft-start, current limit, duty cycle clamp (50% or higher)  
and slope compensation. The LT3782A is identical to the  
LT3782exceptthattheLT3782Ahasatightercurrentsense  
mismatch tolerance.  
n
n
n
n
n
n
n
Programmable Undervoltage Lockout  
Programmable Duty Cycle Clamp (50% or Higher)  
Thermally Enhanced 28-Lead TSSOP and 4mm × 5mm  
QFN Packages  
The LT3782A is available in thermally enhanced 28-lead  
TSSOP and 4mm × 5mm QFN packages.  
APPLICATIONS  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 6144194.  
n
Industrial Equipment  
n
n
Telecom Infrastructure  
Interleaved Isolated Power Supply  
TYPICAL APPLICATION  
50V 4A Boost Converter  
20μH  
V
OUT  
50V, 4A  
V
IN  
10V TO 36V  
10μF  
×2  
D1  
Efficiency and Power Loss  
vs Load Current  
V
GBIAS1  
20μH  
CC  
1μF  
GBIAS2  
GBIAS  
825k  
274k  
2μF  
D2  
+
97  
95  
93  
91  
89  
87  
85  
18  
15  
12  
9
10μF  
×2  
220μF  
RUN  
V
= 24V  
IN  
EFFICIENCY  
BGATE1  
V
= 12V  
IN  
LT3782A  
0.004Ω  
V
EE1  
BGATE2  
V
IN  
= 12V  
59k  
SLOPE  
DELAY  
DCL  
V
IN  
= 24V  
6
80k  
POWER LOSS  
0.004Ω  
3
R
SET  
V
EE2  
+
10Ω  
10nF  
10Ω  
10nF  
0
SS  
0
1
2
3
4
5
SENSE1  
SENSE1  
0.1μF  
I
(A)  
OUT  
–
3782A TA01b  
V
C
475k  
+
–
13k  
6.8nF  
SENSE2  
SENSE2  
100pF  
24.9k  
FB  
GND  
3782A TA01  
3782af  
1
1234567...20

中文翻译

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LT3782AIUFD#PBF Linear

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