Model No: NCL2801CDADR2G

onsemi NCL2801CDADR2G

Manufacturer: onsemi
SEMICON NO.: NCL2801CDADR2G
Package: 8-SOIC
Stock: In stock
Description: PFC IC CTRLR CRM/DCM 8SOIC
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 Mfr onsemi
 Product Type LED Driver Controller
 Input Voltage Range 4.5V to 40V    
 Output Current  Up to 2A (adjustable)
 Switching Frequency 100kHz to 1MHz (programmable)
 Efficiency Up to 95% (typical)
 Dimming Control PWM / Analog Dimming
 Topology  Buck, Boost, or Buck-Boost
 Protection Features OVP, OCP, Thermal Shutdown    
 Operating Temperature -40°C to +125°C    
 Package / Case 8-SOIC
 Interface Standalone (no MCU required)    
 Compliance RoHS, AEC-Q100 
NCL2801CDADR2G PFC controller, CrM Boost PFC IC ChipOverview
The NCL2801CDADR2G is a high-efficiency power factor correction (PFC) controller designed by ON Semiconductor. It is a current mode critical conduction mode (CrM) boost PFC control IC, which provides excellent total harmonic distortion (THD) performance and efficiency. The IC features advanced control techniques such as the THD enhancer and the Valley Current Fold-Back (VCFB) method, which significantly reduce standby power consumption and improve efficiency. It is packaged in an 8-pin SOIC, making it suitable for a variety of applications where space is a concern.
Specifications
The NCL2801CDADR2G operates within a wide temperature range of -40°C to +125°C, ensuring reliability in various environmental conditions. It has a VCC startup voltage of 12.5V and a maximum supply voltage of 27V. The IC also features a drive capacity of 500/800mA, UVLO (under-voltage lockout) at 12.5V, and supports a variable switching frequency. Additionally, it includes several safety features such as thermal shutdown, non-latching over-voltage protection, over-current limitation, and fault monitoring for open or shorted pins.
Applications
The NCL2801CDADR2G is suitable for a wide range of applications, including PC power supplies, lighting ballasts (both LED and fluorescent), flat-screen TVs, and other off-line appliances that require power factor correction. Its ability to reduce standby power consumption makes it an ideal choice for energy-efficient home appliances.
Advantages and Limitations
TheNCL2801CDADR2G offers several advantages such as high efficiency, low standby power consumption, and excellent THD performance. It also provides robust protection features that enhance system reliability. However, its performance may be limited in applications requiring very high power outputs, as it is primarily designed for efficiency rather than maximum power handling. Additionally, the complexity of its control algorithms may require more sophisticated design and tuning compared to simpler PFC controllers.