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NCP4304: 辅助侧控制器,同步整流,用于高能效 SMPS 拓扑结构

Datasheet: Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies
Rev. 6 (478kB)
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NCP4304A/B 是一款全功能控制器和驱动器,专门为控制开关模式电源中的同步整流电路而设计。由于其多功能性,它可以用于反激、正向和半桥谐振 LLC 等多种拓扑结构中。外部可调最短开关时间的组合有助于抵御 PCB 布局和其他寄生元件产生的振铃。因此,可以保证 SR 系统可靠的无噪声运行。极短关断延迟时间、驱动器的高汲电流能力以及自动封装寄生电感补偿系统可最大程度延长同步整流 MOSFET 导通时间,实现 SMPS 能效的进一步提高。最后,较宽的运行 VCC 范围结合两个版本的驱动器电压箝位,简化了 SR 系统在 24 V 输出应用中的实施。
特性   优势
     
  • Precise True Secondary Zero Current Detection with Adjustable Threshold
 
  • Allows for proper timing of SR MOSFET turn on and turn off
  • Automatic Parasitic Inductance Compensation
 
  • Compensates for the parasitic inducatance effects of TO-220 MOSFETS to optimize conduction time
  • Typically 40 ns Turn off Delay from Current Sense Input to Driver
 
  • Maximizes conduction time of the MOSFET to increase efficiency
  • Zero Current Detection Pin Capability up to 200 V
 
  • Allows direct connection of CS input to MOSFET drain in flyback applications
  • Optional Ultrafast Trigger Input
 
  • Improves performance for applications working in deep CCM
  • Disable Input
 
  • Enters the IC into a low consumption standby mode
  • Adjustable Minimum ON Time and Minimum OFF Time
 
  • Prevents accidental MOSFET turn on or turn off due to ringing
  • 5 A/2.5 A Peak Current Sink/Source Drive Capability
 
  • Fast turn off of MOSFET for optimized conduction period
  • Operating Voltage Range up to 30V
 
  • Allows for direct supply from the power supply output voltage in a wide range of applications
应用   终端产品
  • High Power Density AC/DC Power Supplies
 
  • Notebook Adapters
  • Server Power Supplies
  • ATX Power Supplies
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NCP1397GANGEVB Consult Sales Office
Pb-free
High Performance Integrated High Voltage Driver Evaluation Board
NCP1937BADAPGEVB Active
Pb-free
90 W Adapter PFC+QR 10 MW Evaluation Board
Availability & Samples
Specifications
外形
应用框图
产品
状况
Compliance
具体说明
封装
MSL
容器
预算价格 (1千个数量的单价)
类型
外形
类型
Temperature
类型
数量
NCP4304ADR2G Active
Pb-free
Halide free
NCP4304 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.484
NCP4304AMNTWG Active
Pb-free
Halide free
NCP4304 DFN-8 488AF 1 260 Tape and Reel 4000 $0.741
NCP4304BDR2G Active
Pb-free
Halide free
NCP4304 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.484
NCP4304BMNTWG Active
Pb-free
Halide free
NCP4304 DFN-8 488AF 1 260 Tape and Reel 4000 $0.5683
市场订货至交货的时间(周) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : >1K
市场订货至交货的时间(周) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 20,000
市场订货至交货的时间(周) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 72,500
Avnet   (2020-08-19 00:00) : >1K
市场订货至交货的时间(周) : 4 to 8

Product
Description
Pricing ($/Unit)
Compliance
Status
VCC Max (V)
Vref Typ (V)
ICC Max (A)
TA Min (°C)
TA Max (°C)
Package Type
NCP4304ADR2G  
 $0.484 
Pb
H
 Active   
30
N/A
0.0066
-40
125
SOIC-8
NCP4304AMNTWG  
 $0.741 
Pb
H
 Active   
30
N/A
0.0066
-40
125
DFN-8
NCP4304BDR2G  
 $0.484 
Pb
H
 Active   
30
N/A
0.0062
-40
125
SOIC-8
NCP4304BMNTWG  
 $0.5683 
Pb
H
 Active   
30
N/A
0.0062
-40
125
DFN-8
外形
751-07    488AF   
封装
NCP4304: 辅助侧控制器,同步整流,用于高能效 SMPS 拓扑结构
NCP4304: 辅助侧控制器,同步整流,用于高能效 SMPS 拓扑结构
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