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NCP1351ADR2G PDF预览

NCP1351ADR2G

更新时间： 2024-09-19 04:37:59
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管PC
页数 文件大小 规格书
19页 215K
描述
Variable Off Time PWM Controller

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中文翻译

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NCP1351ADR2G 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：LEAD FREE, SOIC-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.66Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：226108
Samacsys Pin Count：8Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline PackagesSamacsys Footprint Name：SOIC-8
Samacsys Released Date：2015-08-17 08:48:49Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：28 V
最小输入电压：9.5 V标称输入电压：12 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最大输出电流：0.4 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：SINGLE
最大切换频率：65 kHz端子面层：Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：3.9 mmBase Number Matches：1

NCP1351ADR2G 数据手册

 浏览型号NCP1351ADR2G的Datasheet PDF文件第2页浏览型号NCP1351ADR2G的Datasheet PDF文件第3页浏览型号NCP1351ADR2G的Datasheet PDF文件第4页浏览型号NCP1351ADR2G的Datasheet PDF文件第5页浏览型号NCP1351ADR2G的Datasheet PDF文件第6页浏览型号NCP1351ADR2G的Datasheet PDF文件第7页 
NCP1351  
Product Preview  
Variable Off Time PWM  
Controller  
The NCP1351 is a current−mode controller targeting low power  
off−line flyback Switched Mode Power Supplies (SMPS) where cost  
is of utmost importance. Based on a fixed peak current technique  
http://onsemi.com  
MARKING DIAGRAM  
(quasi−fixed T ), the controller decreases its switching frequency as  
ON  
8
the load becomes lighter. As a result, a power supply using the  
NCP1351 naturally offers excellent no−load power consumption,  
while optimizing the efficiency in other loading conditions. When the  
frequency decreases, the peak current is gradually reduced down to  
approximately 30% of the maximum peak current to prevent  
transformer mechanical resonance. The risk of acoustic noise is thus  
greatly diminished while keeping good standby power performance.  
An externally adjustable timer permanently monitors the feedback  
activity and protects the supply in presence of a short−circuit or an  
overload. Once the timer elapses, NCP1351 stops switching and stays  
latched for version A, and tries to restart for Version B.  
The internal structure features an optimized arrangement which  
allows one of the lowest available startup current, a fundamental  
parameter when designing low standby power supplies.  
The negative current sensing technique minimizes the impact of the  
switching noise on the controller operation and offers the user to select  
the maximum peak voltage across his current sense resistor. Its power  
dissipation can thus be application optimized.  
SOIC−8  
D SUFFIX  
CASE 751  
1351x  
AYWW  
G
8
1
1
x
A
Y
WW  
G
= A, B, C, or D Options  
= Assembly Location  
= Year  
= Work Week  
= Pb−Free Device  
PIN CONNECTIONS  
FB  
TIMER  
LATCH  
1
2
3
4
8
7
6
5
Ct  
CS  
V
CC  
GND  
DRV  
Finally, the bulk input ripple ensures a natural frequency smearing  
which smooths the EMI signature.  
(Top View)  
ORDERING INFORMATION  
Features  
†
• Quasi−fixed T , Variable T  
Current Mode Control  
Device  
Package  
Shipping  
ON  
OFF  
• Extremely Low Current Consumption at Startup  
• Peak Current Compression Reduces Transformer Noise  
• Primary or Secondary Side Regulation  
• Dedicated Latch Input for OTP, OVP  
• Programmable Current Sense Resistor Peak Voltage  
• Natural Frequency Dithering for Improved EMI Signature  
• Easy External Over Power Protection (OPP)  
• Undervoltage Lockout  
NCP1351ADR2G  
SOIC−8 2500 / Tape & Reel  
(Pb−Free)  
NCP1351BDR2G  
SOIC−8 2500 / Tape & Reel  
(Pb−Free)  
†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.  
• Very Low Standby Power via Off−time Expansion  
• Internal Temperature Shutdown  
• SOIC−8 Package  
Typical Applications  
• Auxiliary Power Supply  
• Printer, Game Stations, Low−Cost Adapters  
• Off−line Battery Charger  
This document contains information on a product under development. ON Semiconductor  
reserves the right to change or discontinue this product without notice.  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
November, 2006 − Rev. P2  
NCP1351/D  
1234567...19

中文翻译

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NCP1351ADR2G 替代型号

型号 品牌 替代类型 描述 数据表
NCP1351BDR2G ONSEMI

完全替代

 Variable Off Time PWM Controller
NCP1380ADR2G ONSEMI

类似代替

 Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1380DDR2G ONSEMI

类似代替

 Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies

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 		Controller, Variable Off-Time Current Mode, with Short Circuit Protection, 8 LEAD PDIP, 50
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 		0.4A SWITCHING CONTROLLER, PDIP8, LEAD FREE, PLASTIC, DIP-8
NCP1351DDR2G ONSEMI

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 		Variable Off Time PWM Controller

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