NCP1612A2DR2G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Mode:	Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM)
Frequency - Switching:	--
Current - Startup:	20µA
Voltage - Supply:	9.5 V ~ 35 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	10-SOP (0.154", 3.90mm Width)
Supplier Device Package:	10-SOIC

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Power Factor Correction (PFC) is a form of electronic power conditioning that helps regulate the voltage load distribution among different energy sources of a system. The prime objective of power factor correction is to reduce the current ripple in AC power systems and also to improve the quality of power which results in greater efficiency of the system.The NCP1612A2DR2G is a common integrated circuit device used in power factor correction applications. It is a full bridge pre-biased synchronous rectifier controller with low power standby mode. This advanced controller with PFC features constant-frequency current-modulated operation which provides great performance and flexibility.The NCP1612A2DR2G controller has several important features. Firstly, it includes a full bridge rectifier with two paralleled outputs for additional current conduction for high efficiency. Secondly, the device provides fault protection and auto-restart function for short-circuit protection. Thirdly, the device also features a low standby power mode with a maximum typical drain of 1 mA. This reduces the overall solution power losses.The device also features an adjustable peak current limit and a programmable switching frequency. The peak current limit can be set up with an external resistor, while the switching frequency range is adjustable from 100 kHz to 350 kHz.The NCP1612A2DR2G can be used in a vast number of applications that require power factor correction. These applications range from AC/DC power supplies to motor drives, air conditioners and other appliances. The device can be used for single-stage PFC and two-stage PFC applications.The working principle of the NCP1612A2DR2G device is quite straightforward. When power is applied, the PFC controller calculates the average current of the load and adjusts the switching frequency accordingly. If the load power increases, the switching frequency is increased. This results in improved power factor, increased efficiency and maximum power output.Moreover, the device also includes multiple protection features to safeguard the system from various conditions. These include over-load protection, over-voltage protection, under-voltage protection, over-heating protection and short circuit protection.Overall, the NCP1612A2DR2G is an efficient, reliable and cost-effective device for controlling and regulating power supply in a range of applications. With its advanced features and protection mechanisms, it can improve efficiency of the system, simplify design and offer effective power factor correction.

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