onsemi NCL2801
NCL2801 is designed to drive PFC boost stages. It is based on an innovative Valley Count Frequency Fold−back (VCFF) method. The circuit classically operates in Critical conduction Mode (CrM) for high load values.- Min Voltage : 10.5V
- Max Voltage : 27V
- Max Operating Temp : 125°C
- Min Operating Temp : -40°C
Source:
Octopart
| Part No. | NCL2801 |
|---|---|
| Datasheet | NCL2801 Download |
| Manufacturer |  onsemi |
| Description | High-Efficiency Power Factor Controller |
| Buy | Stock & Price |
GENERAL FEATURES
● Near−Unity Power Factor● Critical Conduction Mode (CrM)
● Valley Count Frequency Fold−Back (VCFF)
● Peak Current Control Mode to Maintain a Proper Current Shaping in VCFF Mode
● Fast Line / Load Transient Compensation (Dynamic Response Enhancer) Option
● Brown−out Detection
● Two−level Line Feed−Forward (HL&LL)
● Valley Turn−on (No Valley Hoping by Construction)
● High Drive Capability: −500 mA / +800 mA
● VCC Range: from 10.5 V to 27 V
● Low Start−up Consumption for:
● [*C*]& [*D*] Option: Low VCC Start−up Level (12.5 V) [*A*]& [*B*] Option: High VCC Start−up Level (17.0 V) [*E*]& [*F*] Option: High VCC Start−up Level (10.5 V)
● This is a Pb−Free Device MARKING DIAGRAMS 8 L2801abc ALYW G 1 L2801abc = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package PIN CONNECTIONS FB 1 VCTRL VCC DRV MULT GND CS ZCD (Top Views) ORDERING INFORMATION See detailed ordering and shipping information on page 25 of this data sheet. © Semiconductor Components Industries, LLC, 2018 1 March, 2025 − Rev.
