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NCP4304BMNTWG

更新时间： 2024-09-20 12:01:59
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器开关
页数 文件大小 规格书
32页 822K
描述
Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies

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NCP4304BMNTWG 数据手册

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NCP4304A, NCP4304B  
Secondary Side  
Synchronous Rectification  
Driver for High Efficiency  
SMPS Topologies  
http://onsemi.com  
MARKING  
The NCP4304A/B is a full featured controller and driver tailored to  
control synchronous rectification circuitry in switch mode power  
supplies. Due to its versatility, it can be used in various topologies such  
as flyback, forward and Half Bridge Resonant LLC.  
The combination of externally adjustable minimum on and off times  
helps to fight the ringing induced by the PCB layout and other  
parasitic elements. Therefore, a reliable and noise less operation of the  
SR system is insured.  
DIAGRAM  
8
SOIC−8  
D SUFFIX  
CASE 751  
4304x  
8
ALYW G  
1
G
1
The extremely low turn off delay time, high sink current capability  
of the driver and automatic package parasitic inductance  
compensation system allow to maximize synchronous rectification  
MOSFET conduction time that enables further increase of SMPS  
efficiency.  
NCP  
4304x  
ALYWG  
G
DFN8  
CASE 488AF  
1
Finally, a wide operating V range combined with two versions of  
CC  
driver voltage clamp eases implementation of the SR system in 24 V  
output applications.  
4304x = Specific Device Code  
x = A or B  
A
L
= Assembly Location  
= Wafer Lot  
Features  
Y
W
G
= Year  
= Work Week  
= Pb−Free Package  
• Self-Contained Control of Synchronous Rectifier in CCM, DCM, and  
QR Flyback Applications  
• Precise True Secondary Zero Current Detection with Adjustable  
Threshold  
(*Note: Microdot may be in either location)  
• Automatic Parasitic Inductance Compensation Input  
PINOUT INFORMATION  
• Typically 40 ns Turn off Delay from Current Sense Input to Driver  
• Zero Current Detection Pin Capability up to 200 V  
DRV  
GND  
COMP  
CS  
V
1
2
3
4
8
7
6
5
CC  
Min_Toff  
Min_Ton  
Trig/Disable  
• Optional Ultrafast Trigger Interface for Further Improved  
Performance in Applications that Work in Deep CCM  
• Disable Input to Enter Standby or Low Consumption Mode  
(NOTE: For DFN the exposed pad must be either  
unconnected or preferably connected to ground.  
The GND pin must be always connected to ground.)  
• Adjustable Minimum On Time Independent of V Level  
CC  
• Adjustable Minimum Off Time Independent of V Level  
CC  
ORDERING INFORMATION  
• 5 A/2.5 A Peak Current Sink/Source Drive Capability  
• Operating Voltage Range up to 30 V  
†
Device  
Package  
Shipping  
• Gate Drive Clamp of Either 12 V (NCP4304A) or 6 V (NCP4304B)  
• Low Startup and Standby Current Consumption  
• Maximum Frequency of Operation up to 500 kHz  
• SOIC−8 Package  
NCP4304ADR2G  
SOIC−8  
2500 /  
(Pb−Free)  
Tape & Reel  
NCP4304BDR2G  
SOIC−8  
2500 /  
(Pb−Free)  
Tape & Reel  
NCP4304AMNTWG  
DFN8  
4000 /  
• These are Pb-Free Devices  
(Pb−Free)  
Tape & Reel  
Typical Applications  
NCP4304BMNTWG  
DFN8  
4000 /  
(Pb−Free)  
Tape & Reel  
• Notebook Adapters  
• High Power Density AC/DC Power Supplies  
• Gaming Consoles  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specifications  
Brochure, BRD8011/D.  
• All SMPS with High Efficiency Requirements  
© Semiconductor Components Industries, LLC, 2013  
1
Publication Order Number:  
March, 2013 − Rev. 1  
NCP4304/D  
1234567...32

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NCP4304BMNTWG 替代型号

型号 品牌 替代类型 描述 数据表
NCP4303BMNTWG ONSEMI

完全替代

 辅助侧控制器，同步整流，用于高能效 SMPS

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