Allicdata Part #: | PFS7539H-ND |
Manufacturer Part#: |
PFS7539H |
Price: | $ 2.62 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Power Integrations |
Short Description: | IC PFC CTLR 1000W 180VAC 16ESIP |
More Detail: | PFC IC Continuous Conduction (CCM) 22kHz ~ 123kHz ... |
DataSheet: | PFS7539H Datasheet/PDF |
Quantity: | 1000 |
150 +: | $ 2.37405 |
Series: | HiperPFS™ |
Packaging: | Tube |
Part Status: | Active |
Mode: | Continuous Conduction (CCM) |
Frequency - Switching: | 22kHz ~ 123kHz |
Voltage - Supply: | 10.2 V ~ 15 V |
Operating Temperature: | -40°C ~ 150°C |
Mounting Type: | Through Hole |
Package / Case: | 16-SSIP, 13 Leads, Exposed Pad, Formed Leads |
Supplier Device Package: | eSIP-16D |
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Power factor correction (PFC) is an important concept in the power industry as it helps ensure that the device’s current phase and voltage phase remain in-sync with each other. As a result, the system power efficiency is improved, which is important to save energy and reduce greenhouse gas emissions. The PFS7539H is a typical example of a PFC power supply system. This device is a high-integrated application specific IC (ASIC) that integrates several components necessary to realize a power factor correction stage and to improve system power efficiency.
The PFS7539H is designed to operate from a wide input voltage range (85-265VAC). It has an advanced current-mode PFC control and employs a single-stage valley-fill topology for PFC stages. This design can achieve an excellent soft-switching performance, resulting in improved EMI and higher system efficiency. The built-in MOSFET driver circuitry is suitable for various types of power supplies, and provides the flexibility to configure the output power. In addition, the device also comes with a embedded error amplifier, a current sense circuitry, and a programming interface.
The working principle of PFS7539H is based on the current mode control algorithm. This control method allows tighter control of the current waveform and provides a better response to load variations. The integrated feedback control loop measures the output voltage of the PFC stage and modifies the current control loop to prevent overvoltage or undervoltage at the output. The error amplifier is used to regulate the output current, and the external sense resistor detects the output current of the PFC stage. The integrated MOSFET driver provides high voltage current drive signals to the connected MOSFETs.
To ensure highest efficiency, the PFS7539H is designed with an adaptive SoftSwitchingTM (ASS) technology. This technique adds an additional small voltage across the MOSFETs to reduce the switching loss. During the operation mode, the device automatically adjusts the small voltage to ensure the lowest switching loss and highest efficiency. The ASS technology can also reduce the total heat dissipation, as it helps to reduce switching losses and lower the operating temperature.
The PFS7539H is ideal for a wide range of power supply applications such as industrial, medical, office and home applications that require high efficiency performance. It can also be used in and accompany high power PFC applications such as motor drive applications. The device provides a robust and flexible solution to maximize system performance and minimize system cost in various types of power supplies.
The specific data is subject to PDF, and the above content is for reference
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