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LTC3806EDE#TR PDF预览

LTC3806EDE#TR

更新时间: 2024-02-15 23:29:10
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 207K
描述
LTC3806 - Synchronous Flyback DC/DC Controller; Package: DFN; Pins: 12; Temperature Range: -40°C to 85°C

LTC3806EDE#TR 技术参数

是否Rohs认证: 不符合生命周期:Active
包装说明:4 X 3 MM, PLASTIC, MO-229WGED, DFN-12Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.18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:20 V最小输入电压:10 V
标称输入电压:10 VJESD-30 代码:R-PDSO-N12
JESD-609代码:e0长度:4 mm
湿度敏感等级:1功能数量:1
端子数量:12最高工作温度:70 °C
最低工作温度:最大输出电流:0.05 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:290 kHz
温度等级:COMMERCIAL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:DUAL处于峰值回流温度下的最长时间:20
宽度:3 mmBase Number Matches:1

LTC3806EDE#TR 数据手册

 浏览型号LTC3806EDE#TR的Datasheet PDF文件第2页浏览型号LTC3806EDE#TR的Datasheet PDF文件第3页浏览型号LTC3806EDE#TR的Datasheet PDF文件第4页浏览型号LTC3806EDE#TR的Datasheet PDF文件第5页浏览型号LTC3806EDE#TR的Datasheet PDF文件第6页浏览型号LTC3806EDE#TR的Datasheet PDF文件第7页 
LTC3806  
Synchronous  
Flyback DC/DC Controller  
U
FEATURES  
DESCRIPTIO  
The LTC®3806 is a current mode synchronous flyback  
controller that drives N-channel power MOSFETs and  
requires very few external components. It is intended for  
medium power applications where multiple outputs are  
required. Synchronous rectification provides higher effi-  
ciency and improved output cross regulation than  
nonsynchronous converters.  
High Efficiency at Full Load  
Better Cross Regulation Than Nonsynchronous  
Converters (Multiple Outputs)  
Soft-Start Minimizes Inrush Current  
Current Mode Control Provides Excellent  
Transient Response  
High Maximum Duty Cycle: 89% Typical  
±2% Programmable Undervoltage Lockout Threshold  
The IC contains all the necessary control circuitry includ-  
ing a 250kHz oscillator, precision undervoltage lockout  
circuit with hysteresis, gate drivers for primary and syn-  
chronous switches, current mode control circuitry and  
soft-start circuitry.  
±1% Internal Voltage Reference  
Micropower Start-Up  
Constant Frequency Operation (Never Audible)  
3mm × 4mm 12-Pin DFN Package  
U
Programmable soft-start reduces inrush currents. This  
makes it easier to design compliant Power Over Ethernet  
supplies.  
APPLICATIO S  
48V Telecom Supplies  
12V/42V Automotive  
Low start-up current reduces power dissipation in the  
start-up resistor and reduces the size of the external start-  
up capacitor.  
24V Industrial  
VoIP Phone  
Power Over Ethernet  
The LTC3806 is available in a 12-pin, exposed pad DFN  
package.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
V
3.3V  
3A  
OUT1  
V
IN  
36V TO 72V  
V
2.5V  
3A  
OUT2  
C7  
4.7μF  
D1  
T1  
R1  
51k  
R2  
604k  
LTC3806  
RUN SENSE  
I
SS  
G2  
R8  
100Ω  
TH  
FB  
M1  
R5  
M2  
M3  
V
G1  
IN  
C1  
100μF  
C2  
INTV  
GND  
CC  
1nF  
R3  
26.7k  
R4  
3.4k  
C3  
4.7μF  
C4  
0.47μF  
C5  
470μF  
C6  
470μF  
0.056Ω  
3806 F01  
R7  
12.4k  
R6  
21k  
Figure 1. Multiple Output Flyback Converter for Telecom  
3806fb  
1

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