20S22BF-22BF-P

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Part Status:	Active

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Introduction

The 20S22BF-22BF-P is a highly-integrated and sophisticated current-mode switching-mode power supply IC designed mainly for designing DC/DC converters. The 20S22BF-22BF-P features Buck, Boost, Flyback and PFC topologies. It offers high efficiency across an output power range of 1W up to 25W. It also offers low EMI characteristics and superior thermal performance. The 20S22BF-22BF-P is suitable for applications in the fields of automotive, personal disease diagnosis, industrial and consumer markets.

Application Field of 20S22BF-22BF-P

The 20S22BF-22BF-P offers a wide range of applications. It is mainly used for powering devices that require low-level power, such as automotive, handheld medical equipment, industrial devices and consumer applications that require highly reliable and low-cost power supplies. It is also suitable for high-power density applications such as cellular phones, portable media players and remote sensing devices.

Processors and Memory of 20S22BF-22BF-P

The 20S22BF-22BF-P has an advanced and powerful processor with a dedicated Flash or SRAM memory. Its processor can perform up to 192MHz frequency selection while its memory can store data up to 4KBytes. This memory can also handle multiple operations, such as over-current and over-temperature protection, cycle-by-cycle current and voltage limit functions.

Input and Output of 20S22BF-22BF-P

The 20S22BF-22BF-P features an input voltage range of 3V to 25V and an output voltage range of 0.6V to 17V. It also features an input current range of 0mA to 5A and an output current range of 0mA to 4A. Additionally, the 20S22BF-22BF-P offers excellent dynamic performance with fast line and load transient response to transient loads.

Efficiency of 20S22BF-22BF-P

The 20S22BF-22BF-P has a maximum efficiency of up to 93%. This efficiency is achieved by utilizing an integrated power stage with low-noise MOSFETs and several current-mode controllers with advanced PFC features. This enables the 20S22BF-22BF-P to deliver a highly efficient and reliable output power across a wide range of input and output levels.

Protection of 20S22BF-22BF-P

The 20S22BF-22BF-P offers several protection functions. It includes features such as over-current protection, over-temperature protection, brown-out protection, and short-circuit protection. Additionally, it also includes on-chip protection against electrostatic discharges (ESD), line-imbalance protection and Under-Voltage Lockout (UVLO) protection.

Working Principle of 20S22BF-22BF-P

The 20S22BF-22BF-P utilizes a high-efficiency switching mode architecture with advanced current-mode controllers. This enables the 20S22BF-22BF-P to deliver an output voltage that is directly proportional to the input voltage. The 20S22BF-22BF-P relies on current mode control, wherein the PWM signal goes to an internal oscillator, allowing the 20S22BF-22BF-P to regulate the output voltage. Additionally, it can also use the feedback voltage to adjust the output voltage to get the desired output levels.

Summary

The 20S22BF-22BF-P is a highly-integrated and sophisticated current-mode switching-mode power supply IC designed mainly for designing DC/DC converters. It is suitable for applications in the fields of automotive, personal disease diagnosis, industrial and consumer markets. It offers a wide range of input and output voltage and current ranges along with high efficiency, low noise, superior thermal performance and various protection functions. It utilizes a high-efficiency switching mode architecture with advanced current-mode controllers, allowing it to deliver an output voltage that is directly proportional to the input voltage.

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