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NCP1234BD65R2G PDF预览

NCP1234BD65R2G

更新时间： 2024-11-30 01:04:43
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
33页 231K
描述
Fixed Frequency Current Mode Controller for Flyback Converters

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中文翻译

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NCP1234BD65R2G 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOIC-8/7针数：7
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：12 weeks
风险等级：1.69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：10.5 V
标称输入电压：11 VJESD-30 代码：R-PDSO-G7
JESD-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：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封装等效代码：SOP7/8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED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：70 kHz温度等级：AUTOMOTIVE
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：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

NCP1234BD65R2G 数据手册

 浏览型号NCP1234BD65R2G的Datasheet PDF文件第2页浏览型号NCP1234BD65R2G的Datasheet PDF文件第3页浏览型号NCP1234BD65R2G的Datasheet PDF文件第4页浏览型号NCP1234BD65R2G的Datasheet PDF文件第5页浏览型号NCP1234BD65R2G的Datasheet PDF文件第6页浏览型号NCP1234BD65R2G的Datasheet PDF文件第7页 
NCP1234  
Fixed Frequency Current  
Mode Controller for Flyback  
Converters  
The NCP1234 is a new fixed−frequency current−mode controller  
featuring Dynamic Self−Supply (DSS). This device is pin−to−pin  
compatible with the previous NCP12xx families.  
www.onsemi.com  
The DSS function greatly simplifies the design of the auxiliary  
supply and the V capacitor by activating the internal startup current  
CC  
source to supply the controller during transients.  
SOIC−7  
CASE 751U  
Due to frequency foldback, the controller exhibits excellent  
efficiency in light load condition while still achieving very low  
standby power consumption. Internal frequency jittering, ramp  
compensation, and a versatile latch input make this controller an  
excellent candidate for converters where components cost is the key  
constraints.  
It features a timer−based fault detection that ensures the detection of  
overload independently of an auxiliary winding, and an adjustable  
compensation to help keep the maximum power independent of the  
input voltage.  
MARKING DIAGRAM  
8
34Xff  
ALYWX  
G
1
34Xff = Specific Device Code  
X = A or B  
Finally, due to a careful design, the precision of critical parameters  
is well controlled over the entire temperature range (−40°C to  
+125°C).  
ff = 65 or 100  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
A
L
Y
W
G
Features  
• Fixed−Frequency Current−Mode Operation with Built−In Ramp  
Compensation  
PIN CONNECTIONS  
• 65 kHz or 100 kHz Oscillator Frequency version  
• Frequency Foldback then Skip Mode for Maximized Performance in  
Light Load and Standby Conditions  
Latch  
FB  
1
2
3
4
8
HV  
• Timer−Based Overload Protection with Latched (option A) or  
Auto−Recovery (option B) Operation  
V
CC  
CS  
6
5
GND  
DRV  
• High−voltage Current Source with Dynamic Self−Supply,  
(Top View)  
Simplifying the Design of the V Capacitor  
CC  
• Frequency Modulation for Softened EMI Signature, including during  
Frequency Foldback mode  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 32 of this data sheet.  
• Adjustable Overpower Compensation  
• Latch−off Input for Severe Fault Conditions, Allowing Direct  
Connection of an NTC for Overtemperature Protection (OTP)  
• V Operation up to 28 V, with Overvoltage Detection  
CC  
•
500 mA Peak Source/Sink Current Drive Capability  
• 4.0 ms Soft−Start  
Typical Applications  
• Internal Thermal Shutdown  
• Pin−to−Pin Compatible with the Existing NCP12xx  
• AC−DC Adapters for Notebooks, LCD, and Printers  
• Offline Battery Chargers  
• Consumer Electronic Power Supplies  
• Auxiliary/Housekeeping Power Supplies  
Series  
• These Devices are Pb−Free, Halogen Free/BFR Free  
and are RoHS Compliant  
© Semiconductor Components Industries, LLC, 2016  
1
Publication Order Number:  
January, 2016 − Rev. 2  
NCP1234/D  
1234567...33

中文翻译

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NCP1234BD65R2G 替代型号

型号 品牌 替代类型 描述 数据表
NCP1234BD100R2G ONSEMI

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