 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
NCP1611 Datasheet(PDF) 1 Page - ON Semiconductor |
|
||||||||||||||||||||||||||||||
NCP1611 Datasheet(HTML) 1 Page - ON Semiconductor |
|
|
1 / 29 page  © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev. 4 1 Publication Order Number: NCP1611/D NCP1611 Enhanced, High-Efficiency Power Factor Controller The NCP1611 is designed to drive PFC boost stages based on an innovative Current Controlled Frequency Fold−back (CCFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1611 linearly decays the frequency down to about 20 kHz when the current is null. CCFF maximizes the efficiency at both nominal and light load. In particular, the stand−by losses are reduced to a minimum. Like in FCCrM controllers, internal circuitry allows near−unity power factor even when the switching frequency is reduced. Housed in a SO−8 package, the circuit also incorporates the features necessary for robust and compact PFC stages, with few external components. Features • Near−Unity Power Factor • Critical Conduction Mode (CrM) • Current Controlled Frequency Fold−back (CCFF): Low Frequency Operation is Forced at Low Current Levels • On−time Modulation to Maintain a Proper Current Shaping in CCFF Mode • Skip Mode Near the Line Zero Crossing • Fast Line / Load Transient Compensation (Dynamic Response Enhancer) • Valley Turn on • High Drive Capability: −500 mA / +800 mA • VCC Range: from 9.5 V to 35 V • Low Start−up Consumption • A Version: Low VCC Start−up Level (10.5 V), B Version: High VCC Start−up level (17.0 V) • Line Range Detection • Configurable for Low Harmonic Content across Wide Line/Load Range • EN61000−3−2 Class C Compliant across Wide Load Range for Dimmable Light Ballasts • This is a Pb−Free Device Safety Features • Non−latching, Over−Voltage Protection • Brown−Out Detection • Soft−Start for Smooth Start−up Operation (A version) • Over Current Limitation • Disable Protection if the Feedback Pin is Not Connected • Thermal Shutdown • Low Duty−Cycle Operation if the Bypass Diode is Shorted • Open Ground Pin Fault Monitoring • Saturated Inductor Protection • Detailed Safety Testing Analysis (Refer to Application Note AND9064/D) Typical Applications • PC, TV, Adapters Power Supplies • LED Drivers and Light Ballasts (including dimmable versions) • All Off−Line Applications Requiring Power Factor Correction SOIC−8 CASE 751 SUFFIX D PIN CONNECTIONS MARKING DIAGRAM (Top View) www.onsemi.com 1 8 NCP1611x = Specific Device Code x = A or B A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package NCP1611x ALYW G 1 8 See detailed ordering and shipping information in the package dimensions section on page 28 of this data sheet. ORDERING INFORMATION Feedback VCC DRV GND Vcontrol Vsense FFcontrol CS/ZCD 1 |
Similar Part No. - NCP1611_15 |
|
Similar Description - NCP1611_15 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
