Allicdata Part #: | UC2853NG4-ND |
Manufacturer Part#: |
UC2853NG4 |
Price: | $ 2.22 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC PFC CTRLR AVERAGE CURR 8DIP |
More Detail: | PFC IC Average Current 56kHz ~ 94kHz 8-PDIP |
DataSheet: | UC2853NG4 Datasheet/PDF |
Quantity: | 1000 |
200 +: | $ 2.01597 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Mode: | Average Current |
Frequency - Switching: | 56kHz ~ 94kHz |
Current - Startup: | 250µA |
Voltage - Supply: | 12 V ~ 40 V |
Operating Temperature: | -25°C ~ 85°C |
Mounting Type: | Through Hole |
Package / Case: | 8-DIP (0.300", 7.62mm) |
Supplier Device Package: | 8-PDIP |
Base Part Number: | UC2853 |
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Power Factor Correction (PFC) is used to improve the power factor of electrical systems. It helps to reduce the amount of current and voltage fluctuations to improve power system efficiency and reliability. The UC2853NG4 is a universal integrated power factor controller (IPFC) designed to reduce the power factor and harmonics in AC/DC applications. This device works by correcting the current waveform with voltage feedback and adjustable soft-overshoot and fast slew-rate control.
The UC2853NG4 device is a 5-Amp IGBT-based, secondary side, sinusoidal and input power factor current-mode controller. This device features a fast turn-on feature which turns on faster when there is a voltage input. It also features a current sense circuit for monitoring and controlling the power factor and harmonic distortion levels in the output current. Furthermore, the device has a comprehensive set of fault protection features, including over-current protection, over-voltage protection, under-voltage protection, and thermal protection.
The UC2853NG4’s working principle is based on a feedback loop. The device monitors the output current of the system and adjusts the input current to maintain the desired power factor and harmonic levels. The device uses a voltage-controlled oscillator (VCO) to generate the triangular waveform necessary to control the switching frequency and duty cycle of the gate driver in order to improve the power factor and harmonic levels of the system. The VCO also allows the UC2853NG4 to respond quickly to input voltage transients.
The UC2853NG4 is suitable for AC/DC applications such as PFC stages for SMPS systems, plasma TVs, LCD monitors, and motor drive systems. It is also suitable for complete AC/DC offline solutions. The device is also suitable for bridge-mode and half-bridge-mode drivers for IGBTs, SCRs, and Diodes. Additionally, the UC2853NG4 enables power saving designs with low operating current, low standby power, and pulse skipping features.
In conclusion, the UC2853NG4 is a power factor controller designed to reduce the power factor and harmonics in AC/DC applications. It works by monitoring and controlling the power factor and harmonic distortion levels in the output current. This device is suitable for AC/DC applications such as PFC stages for SMPS systems, and it enables power saving designs with low operating current, low standby power, and pulse skipping features.
The specific data is subject to PDF, and the above content is for reference
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