参数资料
| 型号： | NCP1280DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM PROG OVP HV 16SOIC |
| 产品变化通告： | Product Obsolescence 01/Jul/2009 |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 140kHz ~ 320kHz |
| 输入电压： | 7 V ~ 25 V |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC N |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1280DR2GOSCT |
NCP1280
Active Clamp Voltage Mode
PWM Controller for Off-Line
Applications
The NCP1280 provides a highly integrated solution for off ? line
power supplies requiring high ? efficiency and low parts count. This
voltage mode controller provides control outputs for driving a forward
converter primary MOSFET and an auxiliary MOSFET for active
clamp circuit. The second output with its programmable delay can also
be used for driving a synchronous rectifier on the secondary or for
http://onsemi.com
16
MARKING
DIAGRAM
NCP1280G
AWLYWW
asymmetric half bridge circuits. Incorporation of high voltage startup
circuitry (with 700 V capability) reduces parts count and system
power dissipation. Additional features such as line UV/OV protection,
soft ? start, single resistor programmable (high) frequency oscillator,
line voltage feedforward, dual mode overcurrent protection and
maximum duty cycle control, allow converter optimization at minimal
cost. Compared to a traditional forward converter, an NCP1280 based
converter can offer significant efficiency improvements and system
cost savings.
Features
16
1
SO ? 16
D SUFFIX
CASE 751B
1
NCP1280 = Device Code
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb ? Free Package
? Internal High Voltage Startup Regulator (25 V to 700 V)
? Dual Control Outputs with Adjustable Overlap Delay
? Programmable Maximum Duty Cycle Control
? Single Resistor Oscillator Frequency Setting
? Fast Line Feedforward
? Line Under/Overvoltage Lockout
? Dual Mode Overcurrent Protection
? Programmable Soft ? Start
? Precision 5.0 V Reference
? This is a Pb ? Free Device*
Typical Applications
PIN CONNECTIONS
1 16
V in V AUX
NC OUT1
UV/OV GND
FF OUT2
CS t D
C SKIP V REF
R T V EA
DC MAX SS
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
?
?
?
?
Off ? Line Power Converters in 100 ? 500 W Range
Desktop Power Supplies (High ? End)
Industrial Power Supplies
Plasma/LCD TV Front ? End
TX1
*For additional information on our Pb ? Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
L out
V in
+
?
Startup
C clamp
Feedforward
M clamp
SR Drive
M3
C out
+
V out
?
V in
FF
UV/OV
Overlap
Delay
NCP1280
OUT2
OUT1
t D
Driver
M1
Opto
M2
Error
Amplifier
Figure 1. Forward Converter for Off ? line Applications Using PFC Inputs
? Semiconductor Components Industries, LLC, 2009
July, 2009 ? Rev. 5
1
Publication Order Number
NCP1280/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1282 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Power Factor Controllers |
| NCP1282BDR2G | 功能描述:电压模式 PWM 控制器 HI PRF RSET PWM CNTR RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| NCP1288 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1288_11 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1288BD65R2G | 功能描述:功率因数校正 IC NODSS AUTOR SOCP 65KHZ RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
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