IR1155SPBF

Series:	--
Packaging:	Tube
Part Status:	Discontinued at Digi-Key
Mode:	Continuous Conduction (CCM)
Frequency - Switching:	Adjustable
Current - Startup:	175µA
Voltage - Supply:	12 V ~ 19 V
Operating Temperature:	-25°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	IR1155SPBF

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Power Factor Correction (PFC) is an important power management technology that is used to improve the efficiency of power systems and reduce harmonic distortion of the electrical signals. The IR1155SPBF is a high power density and high performance integrated PFC controller designed to implement Power Factor Correction (PFC) in switching power supplies.

The IR1155SPBF is a possible solution to simplify and optimize the design of systems requiring high power density and cost sensitive applications. It is a single-chip solution that integrates MOSFET driver and shutdown control for Active PFC (Power Factor Correction). With its high speed and high performance capabilities, the IR1155SPBF is well suited for a wide variety of applications, including computers, communications equipment, LCD monitors, digital TVs, set-top boxes, and industrial control systems.

The IR1155SPBF is designed to provide efficient active PFC control and to reduce system power consumption. The device is based on a proprietary Analog Phase Shift technology that actively synchronizes the power converter’s switching frequency to the line frequency to develop a composite sine wave output. This controller utilizes an advanced voltage-mode control for improved accuracy and dynamic response.

The IR1155SPBF includes several protection functions such as undervoltage lockout, overvoltage and overtemperature protections, input power limit, and current sense peak current limit. The device also provides a variety of functions for system monitoring, including output voltage sensing, current sensing, and power factor correction.

The IR1155SPBF provides superior performance and high power density for high-efficiency power factor correction designs. The device is capable of generating a composite sinusoidal waveform that can be safely operated in the presence of high line harmonics. It is ideal for high speed, high efficiency applications that require accurate, fast and reliable active power factor correction.

The IR1155SPBF is also designed to save on PCB area by integrating a MOSFET driver, current sensing resistor, undervoltage lockout, power factor correction circuitry, and protection features into a single component. The device also provides system monitoring to ensure proper operation and prevent damage to the system.

In summary, the IR1155SPBF is a high speed, high efficiency, PFC controller that integrates MOSFET driver, shutdown control, and protection into a single component. It is ideal for high power density and cost sensitive applications that require accurate and reliable power factor correction with low harmonic distortion.

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