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NCP4302ADR2G

更新时间： 2024-11-08 05:52:03
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
16页 145K
描述
Secondary Side Synchronous Flyback Controller

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NCP4302ADR2G 数据手册

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NCP4302  
Secondary Side  
Synchronous Flyback  
Controller  
The NCP4302 is a full featured controller and driver that provide all  
the control and protection functions necessary for implementing a  
synchronous rectifier operation in a flyback converter. With the use of  
the NCP4302, the space conscious flyback applications such as  
Adaptors, chargers, set top boxes can achieve significant efficiency  
improvements at minimal extra cost. In addition to the synchronous  
rectifier control, the IC incorporates an accurate TL431 type shunt  
regulator, current monitoring circuit and optocoupler driver to provide  
a single IC secondary solution. The NCP4302 works with any type of  
flyback topology (continuous mode, Quasi-resonant mode or  
discontinuous mode) – providing a high level of versatility.  
http://onsemi.com  
MARKING  
DIAGRAM  
8
4302x  
ALYW  
G
SO-8  
D SUFFIX  
CASE 751  
8
1
1
Features  
x
= Reference Voltage (A or B)  
= Assembly Location  
= Wafer Lot  
A
L
•ꢀSelf-contained Control of Synchronous Rectifier in CCM, DCM, and  
QR Flyback Applications  
Y
W
G
= Year  
= Work Week  
= Pb-Free Package  
•ꢀInterface to External Signal for CCM Mode  
•ꢀTrue Secondary Zero Current Detection  
•ꢀHigh Gate Drive Currents (2.5 A Source/Sink)  
•ꢀHigh Voltage Operation  
•ꢀCurrent Sense Flexibility (MOSFET R  
OR CS Resistor)  
PIN CONFIGURATION  
DS(on)  
•ꢀAccurate Low Voltage Reference  
SYNC/CS  
V
CC  
1
2
3
4
8
7
6
5
- NCP4302A 2.55 V, 1%  
- NCP4302B 1.275 V, 1%  
TRIG  
DRV  
GND  
•ꢀProgrammable Independent Secondary Side t and t Delays  
on  
off  
CATH  
•ꢀMaximum Frequency of Operation up to 250 kHz  
V
REF  
D
LYADJ  
•ꢀThese are Pb-Free Devices  
(Top View)  
Typical Applications  
•ꢀNotebook Adapters  
ORDERING INFORMATION  
•ꢀLCD TV Adapters  
†
•ꢀConsumer Appliances such as DVD, VCR  
Device  
Package  
Shipping  
•ꢀPower Over Ethernet Applications (IP phones, Wireless Access  
NCP4302ADR2G  
SO-8  
(Pb-Free)  
2500/Tape & Reel  
Points)  
•ꢀBattery Chargers  
NCP4302BDR2G  
SO-8  
(Pb-Free)  
2500/Tape & Reel  
†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.  
©ꢀ Semiconductor Components Industries, LLC, 2008  
February, 2008 - Rev. 2  
1
Publication Order Number:  
NCP4302/D  
1234567...16

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NCP4302ADR2G 替代型号

型号 品牌 替代类型 描述 数据表
NCP4303ADR2G ONSEMI

类似代替

 Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies

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