KA5H02659RN

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The KA5H02659RN is a kind of PMIC (Power Management IC) that specializes in AC DC Converters and Offline Switchers. It combines power sensing, regulating, and protective functions in one component, providing robust, reliable, and versatile solutions for a variety of applications. The detailed working principle, application fields, and features of KA5H02659RN will be introduced and discussed in this article.

Working Principle

The working principle of KA5H02659RN mainly relies on the “synchronous rectification control” scheme for basic voltage regulation and protection. Inside the device, a power controller with the Maximum Duty Cycle (MDC) properties and one Pulse Width Modulation (PWM) modulator, as well as temperature and fault sense signal conditioning, latch, and voltage reference control, are all integrated together. These integrated components act as the core unit, which controls the output current and voltage as soon as the input AC power reaches the input electrode.

Firstly, the primary switching converter works in a regular Boost or Buck mode like traditional converter, to get the voltage level needed for the power supply. After that, the synchronous rectification control will monitor the primary switching converter’s output voltage and current. When the voltage or current levels are over the preset maximum value, the synchronous rectification control will start to take action, reducing the output of the converter and bringing it back to the intended state.]

Application Fields

The KA5H02659RN is suitable for applications such as LED drive, solar power generation, industrial control, and communication equipment. Due to their accurate monitoring and control capabilities, these products can extend the life expectancy of the equipment, protect various electronic devices against over frequency, over voltage, and overcurrent conditions, and provide stable output power.

The KA5H02659RN family is also designed to be compatible with ultra-low-power applications, while maintaining a high level of energy efficiency. The device’s low power profile and minimized heat dissipation makes it ideal for use in portable or restricted space, energy harvesting, and battery-powered applications. With a nominal operating temperature range of -40℃~85℃, the device is suitable for operating in all types of environment.

Features

The key features of KA5H02659RN include:

• Flexible output voltage and current selection.
• Integrated autonomous synchronous rectification control system.
• Ultra-low operating current drain.
• Autonomous keep-alive feature.
• Automatic input detection.
• Accurate voltage and current monitoring.
• High level of energy efficiency.
• Low input to output voltage ripple.
• High frequency operations.
• Wide operating temperature range.
• Small package size.

In summary, the KA5H02659RN family provides an integrated solution for AC DC Converters, Offline Switchers, LED drive, solar power applications, and other industrial and communication equipment. With its accuracy and protection features, this device ensures long lasting and reliable performance in any environment.

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