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NCP1239B100 PDF预览

NCP1239B100

更新时间： 2024-11-30 20:06:35
品牌 Logo 应用领域
安森美 - ONSEMI 开关光电二极管
页数 文件大小 规格书
25页 234K
描述
SWITCHING CONTROLLER

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中文翻译

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NCP1239B100 技术参数

生命周期：Active包装说明：SOP,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.66
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：35 V
最小输入电压：9.4 V标称输入电压：11 V
JESD-30 代码：R-PDSO-G7长度：4.9 mm
功能数量：1端子数量：7
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
座面最大高度：1.75 mm表面贴装：YES
最大切换频率：100 kHz温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

NCP1239B100 数据手册

 浏览型号NCP1239B100的Datasheet PDF文件第2页浏览型号NCP1239B100的Datasheet PDF文件第3页浏览型号NCP1239B100的Datasheet PDF文件第4页浏览型号NCP1239B100的Datasheet PDF文件第5页浏览型号NCP1239B100的Datasheet PDF文件第6页浏览型号NCP1239B100的Datasheet PDF文件第7页 
NCP1239  
Fixed Frequency  
Current‐Mode Controller for  
Flyback Converter  
The NCP1239 is a fixed-frequency current-mode controller  
featuring a high-voltage start-up current source to provide a quick and  
lossless power-on sequence. This function greatly simplifies the  
www.onsemi.com  
design of the auxiliary supply and the V capacitor by activating the  
CC  
internal start-up current source to supply the controller during start-up,  
transients, latch, stand-by etc.  
SOIC−7  
CASE 751U  
With a supply range up to 35 V, the controller hosts a jittered 65 or  
100-kHz switching circuitry operated in peak current mode control.  
When the power on the secondary side starts to decrease, the controller  
automatically folds back its switching frequency down to minimum  
level of 26 kHz. As the power further goes down, the part enters skip  
cycle while limiting the peak current that insures excellent efficiency  
in light load condition.  
NCP1239 features a timer-based fault detection circuitry that  
ensures a quasi-flat overload detection, independent of the input  
voltage.  
PIN CONNECTIONS  
1
2
3
4
8
HV  
Fault  
FB  
6
5
VCC  
DRV  
CS  
GND  
Features  
• Fixed-Frequency 65-kHz or 100-kHz Current-Mode Control  
Operation  
• Frequency Foldback Down to 26 kHz and Skip Mode to  
Maximize Performance in Light Load Conditions  
• Adjustable Over Power Protection (OPP) Circuit  
MARKING DIAGRAM  
8
1239xfff  
ALYWX  
• High-Voltage Current Source with Brown-Out (BO) Detection  
• Internal Slope Compensation  
G
• Internal Fixed 8-ms Soft-Start  
1
• Frequency Jittering in Normal and Frequency Foldback Modes  
• 64-ms Timer-Based Short-Circuit Protection with Auto-Recovery  
1239xfff = Specific Device Code  
x = A, B, C or D  
or Latched Operation  
• Pre-Short Ready for Latched OCP Versions  
fff = 065 or 100  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
• Latched OVP on V (NCP1239 A & B Versions)  
A
L
Y
W
G
CC  
• Latched OVP/OTP Input for Improved Robustness  
• 35-V V Operation  
CC  
•
500 mA Peak Source/Sink Drive Capability  
• Internal Thermal Shutdown  
ORDERING INFORMATION  
• Extremely Low No-Load Standby Power  
See detailed ordering and shipping information on page 24 of  
this data sheet.  
• Pin-to-Pin Compatible with the Existing NCP1236/1247 Series  
• These Devices are Pb-Free and are RoHS Compliant  
Typical Applications  
• AC-DC Converters for TVs, Set-Top Boxes and Printers  
• Offline Adapters for Notebooks and Netbooks  
© Semiconductor Components Industries, LLC, 2015  
1
Publication Order Number  
September, 2015 − Rev. 7  
NCP1239/D  
1234567...25

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