- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363216 > NCP1207APG (ON SEMICONDUCTOR) PWM Current−Mode Controller for Free Running Quasi−Resonant Operation PDF資料下載
參數(shù)資料
| 型號： | NCP1207APG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PWM Current−Mode Controller for Free Running Quasi−Resonant Operation |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 334K |
| 代理商： | NCP1207APG |
Semiconductor Components Industries, LLC, 2006
October, 2006
Rev. 3
1
Publication Order Number:
NCP1207A/D
NCP1207A
PWM CurrentMode
Controller for Free Running
QuasiResonant Operation
The NCP1207A combines a true current mode modulator and a
demagnetization detector to ensure full borderline/critical Conduction
Mode in any load/line conditions and minimum drain voltage switching
(Quasi
Resonant operation). Due to its inherent skip cycle capability,
the controller enters burst mode as soon as the power demand falls
below a predetermined level. As this happens at low peak current, no
audible noise can be heard. An internal 8.0 s timer prevents the
free
run frequency to exceed 100 kHz (therefore below the 150 kHz
CISPR
22 EMI starting limit), while the skip adjustment capability lets
the user select the frequency at which the burst foldback takes place.
The Dynamic Self
Supply (DSS) drastically simplifies the
transformer design in avoiding the use of an auxiliary winding to
supply the NCP1207A. This feature is particularly useful in
applications where the output voltage varies during operation (e.g.
battery chargers). Due to its high
voltage technology, the IC is
directly connected to the high
voltage DC rail. As a result, the
short
circuit trip point is not dependent upon any V
CC
auxiliary level.
The transformer core reset detection is done through an auxiliary
winding which, brought via a dedicated pin, also enables fast
Overvoltage Protection (OVP). Once an OVP has been detected, the
IC permanently latches off.
Finally, the continuous feedback signal monitoring implemented
with an overcurrent fault protection circuitry (OCP) makes the final
design rugged and reliable.
Features
Free
Running Borderline/Critical Mode Quasi
Resonant Operation
Current
Mode with Adjustable Skip
Cycle Capability
No Auxiliary Winding V
CC
Operation
Auto
Recovery Overcurrent Protection
Latching Overvoltage Protection
External Latch Triggering, e.g. Via Overtemperature Signal
500 mA Peak Current Source/Sink Capability
Undervoltage Lockout for VCC Below 10 V
Internal 1.0 ms Soft
Start
Internal 8.0 s Minimum T
OFF
Adjustable Skip Level
Internal Temperature Shutdown
Direct Optocoupler Connection
SPICE Models Available for TRANsient Analysis
Pb
Free Packages are Available
Typical Applications
AC/DC Adapters for Notebooks, etc.
Offline Battery Chargers
Consumer Electronics (DVD Players, Set
Top Boxes, TVs, etc.)
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
MARKING
DIAGRAM
1207A/P = Device Code
A
= Assembly Location
L, WL
= Wafer Lot
Y, YY
= Year
W, WW
= Work Week
= Pb
Free Package
G
= Pb
Free Package
http://onsemi.com
PDIP
8
N SUFFIX
CASE 626
1
8
SOIC
8
D1, D2 SUFFIX
CASE 751
1
8
5
3
4
Dmg
CS
HV
PIN CONNECTIONS
7
6
2
NC
FB
GND
Drv
V
CC
1207AP
AWL
YYWWG
1
8
Device
Package
Shipping
ORDERING INFORMATION
NCP1207ADR2
SOIC
8
2500/Tape & Reel
NCP1207AP
PDIP
8
50 Units / Rail
NCP1207ADR2G
SOIC
8
(Pb
Free)
2500/Tape & Reel
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.
NCP1207APG
PDIP
8
(Pb
Free)
50 Units / Rail
1
8
1207A
AYWW
1
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1207AP | PWM Current-Mode Controller for Free Running Quasi-Resonant Operation |
| NCP1207ADR2 | PWM Current-Mode Controller for Free Running Quasi-Resonant Operation |
| NCP1207ADR2G | PWM Current-Mode Controller for Free Running Quasi-Resonant Operation |
| NCP1207A | PWM Current Mode Controller for Free Running Quasi Resonant Operation(電流模式控制的PWM控制器，用于自由振蕩的“準諧振”操作) |
| NCP1207B | 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 |
|---|---|
| NCP1207B | 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 |
| NCP1207BDR2G | 功能描述:電流型 PWM 控制器 ANA QUASI RESNT SMPS RoHS:否 制造商:Texas Instruments 開關(guān)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(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| NCP1207-D | 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 |
| NCP1207DR2 | 功能描述:IC CTRLR PWM CM OVP OCP HV 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:- 標準包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
| NCP1207DR2G | 功能描述:IC CTRLR PWM CM OVP OCP HV 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:- 標準包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
發(fā)布緊急采購，3分鐘左右您將得到回復。