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參數資料
| 型號： | NCP1337 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | PWM Current−Mode Controller for Free Running Quasi−Resonant Operation |
| 文件頁數： | 1/14頁 |
| 文件大小： | 148K |
| 代理商： | NCP1337 |
Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 2
1
Publication Order Number:
NCP1337/D
NCP1337
PWM CurrentMode
Controller for Free Running
QuasiResonant Operation
The NCP1337 combines a true current mode modulator and a
demagnetization detector which ensures full Borderline/Critical
Conduction Mode in any load/line conditions together with
minimum drain voltage switching (QuasiResonant operation). The
transformer core reset detection is done internally, without using any
external signal, due to the Soxyless concept. The frequency is
internally limited to 130 kHz, preventing the controller to operate
above the 150 kHz CISPR22 EMI starting limit.
By monitoring the feedback pin activity, the controller enters
ripple mode as soon as the power demand falls below a
predetermined level. As each restart is softened by an internal
softstart, and as the frequency cannot go below 25 kHz, no audible
noise can be heard.
The NCP1337 also features an efficient protective circuitry which,
in presence of an overcurrent condition, disables the output pulses
and enters a safe burst mode, trying to restart. Once the default has
gone, the device autorecovers. Also included is a bulk voltage
monitoring function (known as brownout protection), an adjustable
overpower compensation, and a V
CC
OVP. Finally, an internal 4.0 ms
softstart eliminates the traditional startup stress.
Features
FreeRunning Borderline/Critical Mode QuasiResonant Operation
CurrentMode
Soft Ripple Mode with Minimum Switching Frequency for Standby
AutoRecovery ShortCircuit Protection Independent of Auxiliary
Voltage
Overvoltage Protection
BrownOut Protection
Two Externally Triggerable Fault Comparators (one for a disable
function, and the other for a permanent latch)
Internal 4.0 ms SoftStart
500 mA Peak Current Drive Sink Capability
130 kHz Max Frequency
Internal Leading Edge Blanking
Internal Temperature Shutdown
Direct Optocoupler Connection
Dynamic SelfSupply with Levels of 12 V (On) and 10 V (Off)
SPICE Models Available for TRANsient and AC Analysis
These are PbFree Devices*
Typical Applications
ACDC Adapters for Notebooks, etc.
Offline Battery Chargers
Consumer Electronics (DVD Players, SetTop Boxes, TVs, etc.)
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
PDIP7
P SUFFIX
CASE 626B
PIN CONNECTIONS
1
Device
Package
Shipping
ORDERING INFORMATION
NCP1337PG
PDIP7
(PbFree)
50 Units/Tube
http://onsemi.com
MARKING
DIAGRAM
A
WL
Y, YY
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
= PbFree Package
(Top View)
FB
BO
CS
GND
DRV
HV
VCC
NCP1337P
AWL
YYWWG
1
SOIC7
D SUFFIX
CASE 751U
NCP1337DR2G
SOIC7
(PbFree)
2500 Tape & Reel
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
*For additional information on our PbFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
2
3
4
8
6
5
P1337
AYWW
1
8
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相關代理商/技術參數 |
參數描述 |
|---|---|
| NCP1337_11 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:PWM Current-Mode Controller for Free Running Quasi-Resonant Operation |
| NCP1337ADAPEVB | 功能描述:插座和適配器 NCP1337 60W ADAPTER EVB RoHS:否 制造商:Silicon Labs 產品:Adapter 用于:EM35x |
| NCP1337ADAPGEVB | 功能描述:電源管理IC開發工具 NCP1337 60W ADAPTER EVB RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP1337DR2G | 功能描述:電流型 PWM 控制器 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 |
| NCP1337PG | 功能描述:電流型 PWM 控制器 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 |
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