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| 型号： | LTC3766MPGN#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 316 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | 0.150 INCH, LEAD FREE, PLASTIC, SSOP-28 |
| 文件页数： | 1/60页 |
| 文件大小： | 607K |
| 代理商： | LTC3766MPGN#PBF |
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LTC3766
1
3766f
TYPICAL APPLICATION
FEATURES
DESCRIPTION
High Efficiency,
Secondary-Side Synchronous
Forward Controller
The LTC3766 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-
phase operation with the speed of secondary-side control.
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-up into a pre-biased load make the LTC3766 an excel-
lent choice for high-power battery charger applications.
TheLTC3766providesextensiveremotesensingandoutput
protection features, while Direct Flux Limit guarantees no
transformer saturation without compromising transient
response. A linear regulator controller and internal bypass
LDO are also provided to simplify the generation of the
secondary-side bias voltage.
36V-72V to 5V/15A Active Clamp Isolated Forward Converter
APPLICATIONS
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
n
PolyPhase Operation Eases High-Power Design
n
True Remote Sense Differential Amplifier
n
Remote Sense Reverse Protection
n
High Voltage Linear Regulator Controller
n
Internal LDO Powers Gate Drive from VOUT
n
Overtemperature/Overvoltage Protection
n
Low Profile 4mm
× 5mm QFN and Narrow 28-Lead
SSOP Packages
n
Isolated 48V Telecommunication Systems
n
Isolated Battery Chargers
n
Automotive and Military Systems
n
Industrial, Avionics and Heavy Equipment
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.
FG
IS–
IS+
PT+
FB
ITH
PT–
SS
SW SG
GND PGND
SGD
FGD MODE
RUN VIN NDRV
LTC3766
VCC
RUN
Si3437DV
(SOT23)
15m
0.5W
3m
2W
VCC
IN+
IN–
FS/UV
SSFLT
NDRV PG
RCORE
DELAY
SGND
14k
18.2k
EFFICIENCY: 94% AT 48VIN/15AOUT
15k
26.1k
33nF
22.1k
17.8k
3766 TA01
604
4.42k
0.1F
2:1
6:2
10.5k
15.0k
365k
IPK
200k
Si3440DV
–VIN
+VIN
36V TO 72V
FDMS86201
BSC0901NS
SiR414DP
33nF
4.7F
LTC3765
PGND
IS+ IS– AG
1
168
ISMAG
FS/SYNC VS+ VS–
1.0F
2.2nF
250VAC
33nF
200V
47pF
470pF
2.2F
100V
×3
220F
6.3V
×2
1.4H
+VOUT
5V
15A
–VOUT
100nF
200V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3766MPUFD#PBF | 功能描述:IC CONTROLLER SYNCH 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™, PolyPhase® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3766MPUFD#TRPBF | 功能描述:IC CONTROLLER SYNCH 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:Direct Flux Limit™, PolyPhase® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| LTC3770EG | 制造商:Linear Technology 功能描述:LDO Cntrlr SYNC BUCK REG 0.6V to 32V 28-Pin SSOP |
| LTC3770EG#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3770EG#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
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