
UCC28070PWR Integrated Circuits (ICs) |
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Allicdata Part #: | 296-23630-2-ND |
Manufacturer Part#: |
UCC28070PWR |
Price: | $ 2.56 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC PFC CONTROLLER CCM 20TSSOP |
More Detail: | PFC IC Continuous Conduction (CCM) Adjustable 20-T... |
DataSheet: | ![]() |
Quantity: | 2018 |
1 +: | $ 2.56000 |
10 +: | $ 2.48320 |
100 +: | $ 2.43200 |
1000 +: | $ 2.38080 |
10000 +: | $ 2.30400 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Mode: | Continuous Conduction (CCM) |
Frequency - Switching: | Adjustable |
Current - Startup: | 20mA |
Voltage - Supply: | 11.2 V ~ 21 V |
Operating Temperature: | -40°C ~ 125°C |
Mounting Type: | Surface Mount |
Package / Case: | 20-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 20-TSSOP |
Base Part Number: | UCC28070 |
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Power Factor Correction (PFC) is an essential and integral part of today’s power supply systems, which help a system engineer to avoid unwanted over-heating and power handling issues. The Unisonic Technologies UCC28070PWR application field of PFC is quite diverse and includes applications such as servers, computers, home automation, industrial control and instrumentation, and various other digital devices. This application field and the working principle of the PFC are explained below.
Application Field of UCC28070PWR
The Unisonic Technologies UCC28070PWR PFC is a highly integrated power supply IC with a wide range of application fields. Moreover, it features active power factor compensation and is perfectly suited for power supply solutions with power ratings above 150W and DC input operating voltages up to 420V. This integrated IC is quite versatile in its application field and can be used for applications such as PCs and workstations, domestic appliances, white goods, medical, industrial and instrumentation applications, as well as modern power supplies.
In addition, the UCC28070PWR is ideal for servers, computers, home automation, industrial control, and instrumentation applications as it provides a high power factor, high efficiency, and low harmonic distortion. Moreover, it is backward compatible with its predecessor UCC28069PFC and fully compliant with the IEC 61000-3-2 and IEC 60950-1 standards.
Working Principle of PFC
The working principle of Power Factor Correction (PFC) is quite simple, yet highly effective. All PFC systems are based on a “front end” power factor correction technique. This technique works by using an input bridge rectifier in the power supply circuit, which in turn rectifies the input voltage and allows it to pass through a current limiter. This current limiter then helps to reduce the current available in the circuit to a predetermined level.
The current limiter is then connected to a charge-pump type PFC controller, which allows the controller to sense the system current and adjust it accordingly. In addition, it also helps to control the system operating parameters such as the input voltage and load currents. Once the system detects an increased voltage drop, the charge-pump type PFC controller will raise the input current, which in turn increases the power factor of the system, consequently leading to an improvement in power efficiency.
The UCC28070PWR PFC IC is the ideal choice for any application that requires high power efficiency, accurate power factor correction, and low harmonic distortion. This advanced IC provides high power factor, high efficiency, and a low harmonic distortion in one highly integrated package, thereby enabling the device to be used in various applications.
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