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參數資料
| 型號： | NCP1381 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Low−Standby High Performance PWM Controller |
| 文件頁數： | 1/26頁 |
| 文件大小： | 559K |
| 代理商： | NCP1381 |
Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 3
1
Publication Order Number:
N
CP1381/D
NCP1381
LowStandby High
Performance PWM
Controller
Housed in a SO14 package, the NCP1381 includes everything
needed to build rugged and efficient QuasiResonant (QR) Switching
Power Supplies. When powered by a frontend Power Factor
Correction circuitry, the NCP1381 automatically disconnects the PFC
controller in low output loading conditions (with an adjustable level),
thus improving the standby power. This is particularly well suited for
medium to high power offline applications, e.g. notebook adapters.
When the current setpoint falls below a given value, e.g. the output
power demand diminishes, the IC automatically enters the socalled
skip cycle mode and provides excellent efficiency at light loads.
Because this occurs at an adjustable low peak current together with a
proprietary SoftSkip technique, no acoustic noise takes place. Skip
cycle also offers the ability to easily select the maximum switching
frequency at which foldback and standby take place.
The NCP1381 also features several efficient protection options like
a) a shortcircuit / overload detection independent of the auxiliary
voltage b) an autorecovery brownout detection and c) an input to
externally latch the circuit in case of Overvoltage Protection or Over
Temperature Protection.
Features
CurrentMode QuasiResonant Operation
Adjustable Line Over Power Protection
Extremely Low Startup Current of 15 A Maximum
SoftSkip Cycle Capability at Adjustable Peak Currents
Plateau Sensing Overvoltage
BrownOut Protection
Maximum t
ON
Limitation
Overpower Protection by current Sense Offset
Internal 5 ms SoftStart Management
ShortCircuit Protection Independent from Auxiliary Level
External Latch Input Pin for an OTP Signal
GoToStandby Signal for the PFC Front Stage
True Frequency (t
ON
+ t
OFF
) Clamp Circuit
Low and Noiseless, NoLoad Standby Power
Internal Leading Edge Blanking
+500 mA / 800 mA Peak Current Drive Capability
5 V / 10 mA Reference Voltage
This is a PbFree Device
Typical Applications
High Power AC/DC Adapters for Notebooks, etc
Offline Battery Chargers
SetTop Boxes Power Supplies, TV, Monitors, etc
1
14
NCP1381G
AWLYWW
1
14
NCP1381G = Specific Device Code
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
G = PbFree Package
MARKING
DIAGRAM
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
ORDERING INFORMATION
1
2
3
4
5
6
7
14
13
12
11
10
9
8
nc
nc
Ref
GND
V
CC
DRV
GTS
Skip/OVP
Timer
ADJ_GTS
BO
DMG
FB
CS
HIGH PERFORMANCE QR
CONTROLLER FEATURING PFC
SHUTDOWN
http://onsemi.com
SOIC14
D SUFFIX
CASE 751A
相關PDF資料 |
PDF描述 |
|---|---|
| NCP1381DR2G | Low−Standby High Performance PWM Controller |
| NCP1395APG | High Performance Resonant Mode Controller |
| NCP1395ADR2G | High Performance Resonant Mode Controller |
| NCP1395BDR2G | High Performance Resonant Mode Controller |
| NCP1395BPG | High Performance Resonant Mode Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| NCP1381 AM90 WAF | 制造商:ON Semiconductor 功能描述: |
| NCP1381ADAPEVB | 功能描述:BOARD EVAL NCP1381 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:* 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| NCP1381DR2G | 功能描述:電流型 PWM 控制器 ANA PWM CONTROLLER RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1382DR2G | 功能描述:電流型 PWM 控制器 L-STNDBY PWM CNTRLR RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1392B | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High-Voltage Half-Bridge Driver with Inbuilt Oscillator |
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