- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363217 > NCP1280DR2G (ON SEMICONDUCTOR) Active Clamp Voltage Mode PWM Controller for Off-Line Applications PDF資料下載
參數(shù)資料
| 型號： | NCP1280DR2G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Active Clamp Voltage Mode PWM Controller for Off-Line Applications |
| 中文描述： | 0.01 A SWITCHING CONTROLLER, 320 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | LEAD FREE, SO-16 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 143K |
| 代理商： | NCP1280DR2G |
Semiconductor Components Industries, LLC, 2005
February, 2005 Rev. 3
1
Publication Order Number
NCP1280/D
NCP1280
Active Clamp Voltage Mode
PWM Controller for OffLine
Applications
The NCP1280 provides a highly integrated solution for offline
power supplies requiring highefficiency 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
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,
softstart, 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
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 SoftStart
Precision 5.0 V Reference
PbFree Package is Available*
Typical Applications
OffLine Power Converters in 100500 W Range
Desktop Power Supplies (HighEnd)
Industrial Power Supplies
Plasma/LCD TV FrontEnd
C
clamp
Figure 1. Forward Converter for Offline Applications Using PFC Inputs
TX1
NCP1280
+
Driver
Opto
Error
Amplifier
Startup
Feedforward
UV/OV
Overlap
Delay
+
FF
OUT1
OUT2
M1
M2
M3
SR Drive
V
in
V
out
C
out
M
clamp
V
in
t
D
L
out
NCP1280= Device Code
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
MARKING
DIAGRAM
16
SO16
D SUFFIX
CASE 751B
NCP1280
AWLYWW
1
1
16
PIN CONNECTIONS
1
V
in
SS
DC
MAX
16
V
EA
R
T
V
REF
C
SKIP
t
D
CS
OUT2
FF
GND
UV/OV
OUT1
NC
V
AUX
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
*For additional information on our PbFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1280 | Active Clamp Voltage Mode PWM Controller for Off-Line Applications |
| NCP1280DR2 | Precision Analog-to-Digital Converter (ADC) with 8051 Microcontroller and 32k Flash Memory 64-TQFP |
| NCP1282 | High Performance Active Clamp/Reset PWM Controller Featuring 500 V Startup |
| NCP1282BDR2G | High Performance Active Clamp/Reset PWM Controller Featuring 500 V Startup |
| NCP1308DR2G | PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1282 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Power Factor Controllers |
| NCP1282BDR2G | 功能描述:電壓模式 PWM 控制器 HI PRF RSET PWM CNTR RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| NCP1288 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1288_11 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1288BD65R2G | 功能描述:功率因數(shù)校正 IC NODSS AUTOR SOCP 65KHZ RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。