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參數(shù)資料
| 型號(hào)： | NCP1205DR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
| 中文描述： | SWITCHING CONTROLLER, 125 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 277K |
| 代理商： | NCP1205DR2 |
Semiconductor Components Industries, LLC, 2006
October, 2006
Rev. 7
1
Publication Order Number:
NCP1205/D
NCP1205
Single Ended PWM
Controller Featuring QR
Operation and Soft
Frequency Foldback
The NCP1205 combines a true Current Mode Control modulator
and a demagnetization detector to ensure full Discontinuous
Conduction Mode in any load/line conditions and minimum drain
voltage switching (Quasi
Resonant operation, also called critical
conduction operation). With its inherent Variable Frequency Mode
(VFM), the controller decreases its operating frequency at constant
peak current whenever the output power demand diminishes.
Associated with automatic multiple valley switching, this unique
architecture guarantees minimum switching losses and the lowest
power drawn from the mains when operating at no
load conditions.
Thus, the NCP1205 is optimal for applications targeting the newest
International Energy Agency (IEA) recommendations for standby
power.
The internal High
Voltage current source provides a reliable
charging path for the V
CC
capacitor and ensures a clean and short
startup sequence without deteriorating the efficiency once off.
The continuous feedback signal monitoring implemented with an
Overcurrent fault Protection circuitry (OCP) makes the final design
rugged and reliable. The PDIP
14 offers an adjustable version of the
OVP threshold via an external resistive network.
Features
Natural Drain Valley Switching for Lower EMI and Quasi
Resonant
Operation (QR)
Smooth Frequency Foldback for Low Standby and Minimum Ripple
at Light
Load
Adjustable Maximum Switching Frequency
Internal 200 ns Leading Edge Blanking on Current Sense
250 mA Sink and Source Driver
Wide Operating Voltages: 8.0 to 30 V
Wide UVLO Levels: 7.2 to 15 V Typical
Auto
Recovery Internal Short
Circuit Protection (OCP)
Integrated 3.0 mA Typ Startup Source
Current Mode Control
Adjustable Overvoltage Level
Pb
Free Packages are Available*
Applications
High Power AC/DC Adapters for Notebooks, etc.
Offline Battery Chargers
Power Supplies for DVD, CD Players, TVs, Set
Top Boxes, etc.
Auxiliary Power Supplies (USB, Appliances, etc.)
*For additional information on our Pb
Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAM
http://onsemi.com
1
8
1205P
AWL
YYWWG
1
8
A
WL
YY, Y
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb
Free Package
PDIP
8
N SUFFIX
CASE 626
PDIP
14
P SUFFIX
CASE 646
14
1
1
14
NCP1205P2
AWLYYWWG
SOIC
16
D SUFFIX
CASE 751B
16
1
NCP1205DG
AWLYWW
16
1
Device
Package
Shipping
ORDERING INFORMATION
NCP1205P
PDIP
8
50 Units/Rail
NCP1205P2
PDIP
14
25 Units/Rail
NCP1205DR2
SOIC
16
2500/Tape & Reel
NCP1205PG
PDIP
8
(Pb
Free)
50 Units/Rail
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.
NCP1205P2G
PDIP
14
(Pb
Free)
25 Units/Rail
NCP1205DR2G
SOIC
16
(Pb
Free)
2500/Tape & Reel
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1205DR2G | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
| NCP1205P2G | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
| NCP1205PG | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
| NCP1205P | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
| NCP1205P2 | Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1205DR2G | 功能描述:電流型 PWM 控制器 Single Ended Quasi Resonant PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1205P | 功能描述:電流型 PWM 控制器 Single Ended Quasi RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1205P2 | 功能描述:電流型 PWM 控制器 Single Ended Quasi RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1205P2G | 功能描述:電流型 PWM 控制器 Single Ended Quasi Resonant PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1205PG | 功能描述:電流型 PWM 控制器 Single Ended Quasi Resonant PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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