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LTC3766EUFD#PBF

更新时间： 2024-09-24 19:38:43
品牌 Logo 应用领域
凌特 - Linear 开关输出元件
页数 文件大小 规格书
62页 1746K
描述
LTC3766 - High Efficiency, Secondary-Side Synchronous Forward Controller; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

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LTC3766EUFD#PBF 技术参数

是否Rohs认证： 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：8.46其他特性：8.5V OUTPUT VOLTAGE AVAILABLE, ALSO HAS CONTROL MODE OF IPK
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：32 V
最小输入电压：5 V标称输入电压：15 V
JESD-30 代码：R-PQCC-N28JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：
标称输出电压：7 V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, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED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：PUSH-PULL
最大切换频率：316 kHz技术：CMOS
温度等级：OTHER端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

LTC3766EUFD#PBF 数据手册

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LTC3766  
High Efficiency,  
Secondary-Side Synchronous  
Forward Controller  
FEATURES  
DESCRIPTION  
The LTC®3766 is a PolyPhase-capable secondary-side  
controllerforsynchronousforwardconverters.Whenused  
in conjunction with the LTC3765 active-clamp forward  
controller and gate driver, the part creates a complete  
isolated power supply that combines the power of multi-  
phaseoperationwiththespeedofsecondary-sidecontrol.  
n
Direct Flux Limit™ Guarantees No Saturation  
n
Fast and Accurate Average Current Limit  
n
Clean Start-Up Into Pre-Biased Output  
n
Secondary-Side Control for Fast Transient Response  
n
Simple, Self-Starting Architecture  
n
Synchronous MOSFET Reverse Current Limit  
PolyPhase® Operation Eases High-Power Design  
n
The LTC3766 has been designed to simplify the design of  
active clamp forward converters. Working in concert with  
the LTC3765, the LTC3766 forms a robust, self-starting  
converter that eliminates the need for the separate bias  
regulatorthatiscommonlyusedinsecondary-sidecontrol  
applications. A precision current-limit coupled with clean  
start-upintoapre-biasedloadmaketheLTC3766anexcel-  
lent choice for high-power battery charger applications.  
n
True Remote Sense Differential Amplifier  
n
Remote Sense Reverse Protection  
n
High Voltage Linear Regulator Controller  
n
Internal LDO Powers Gate Drive from V  
OUT  
n
n
Overtemperature/Overvoltage Protection  
Low Profile 4mm × 5mm QFN and Narrow 28-Lead  
SSOP Packages  
APPLICATIONS  
TheLTC3766providesextensiveremotesensingandoutput  
protection features, while Direct Flux Limit guarantees no  
transformer saturation without compromising transient  
response. Alinearregulatorcontrollerandinternalbypass  
LDO are also provided to simplify the generation of the  
secondary-side bias voltage.  
n
Isolated 48V Telecommunication Systems  
n
Isolated Battery Chargers  
n
Automotive and Military Systems  
Industrial, Avionics and Heavy Equipment  
n
L, LT, LTC, LTM, PolyPhase, Linear Technology and the Linear logo are registered and Direct  
Flux Limit is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents, including 7200014 and 6144194.  
Other patents pending.  
TYPICAL APPLICATION  
36V – 72V to 5V/15A Active Clamp Isolated Forward Converter  
1.4µH  
+V  
5V  
OUT  
+V  
6:2  
IN  
36V TO 72V  
•
•
15A  
EFFICIENCY: 94% AT 48V /15A  
IN  
OUT  
2.2µF  
100V  
×3  
220µF  
6.3V  
×2  
FDMS86201  
BSC0901NS  
SiR414DP  
100nF  
200V  
33nF  
200V  
15mΩ  
0.5W  
3mΩ  
2W  
168Ω  
–V  
IN  
–V  
OUT  
2.2nF  
250VAC  
Si3437DV  
(SOT23)  
200k  
Si3440DV  
+
–
1Ω  
FG SW SG RUN  
V
IN  
NDRV V  
FS/SYNC V  
V
CC  
S S  
4.42k  
–
I
I
S
S
+
–
365k  
+
0.1µF  
1.0µF  
NDRV PG  
RUN  
I
I
S
AG  
I
SMAG  
FB  
S
2:1  
LTC3766  
+
–
+
–
IN  
IN  
PT  
PT  
ITH  
604Ω  
470pF  
•
•
LTC3765  
V
CC  
SS  
SSFLT  
R
FS/UV  
SGND PGND  
4.7µF  
15.0k  
GND PGND  
I
SGD  
26.1k 15k  
FGD MODE  
22.1k  
PK  
DELAY  
14k  
CORE  
33nF  
17.8k  
47pF  
33nF  
10.5k  
18.2k  
3766 TA01  
3766fc  
1
For more information www.linear.com/LTC3766  
1234567...62

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