LNK626PG

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LNK626PG is a primary switched-mode power supply (SMPS) controller used in applications such as off-line and DC/DC converters. It is designed to be user friendly, reduce inserted external components and its current waveform distortion. This article will explain the application field of the LNK626PG and its working principle.

Applications of LNK626PG

The LNK626PG is suitable for a variety of primary switched mode power supply (SMPS) applications. It is typically used in low voltage, low power offline and DC/DC converters. These converters can be used for applications such as mobile phone chargers, digital photo frames, pocket video players, modem adapters, and many other consumer electronics applications.

In addition, this SMPS controller is suitable for applications with any type of power input and output, including AC/DC and DC/DC. It is also suitable for various types of transformer and flyback topologies, making it a highly configurable and versatile power supply solution.

Features of LNK626PG

The LNK626PG is designed to be user friendly and reduce inserted external components. It has an internal oscillator, which allows it to program a frequency up to 250kHz. The output voltage is set by an externally adjustable reference voltage and an external resistor, thereby eliminating the need for additional voltage setting components. The controller integrates a low drop-out voltage regulation loop that maintains the programmed output voltage even with varying input conditions.

The controller also provides protections against overload and over-current conditions. It monitors the output voltage and detects when it is higher or lower than the programmed set point. The controller then limits the maximum output current and shuts down the output when the current is too high.

The LNK626PG also features an auto-restart circuit, which allows the device to re-start operation automatically when the fault condition is removed. The controller also features built-in temperature protection, which protects it from extreme operating conditions and thermal damage.

Working Principle of LNK626PG

The LNK626PG is a primary SMPS controller that uses a pulse width modulation (PWM) technique to control output voltage and power. The output voltage is programmed by an adjustable external reference voltage and an external resistor. The controller monitors the input voltage and adjusts the duty cycle of the PWM signal accordingly to maintain a constant output voltage.

The controller also monitors the output current and activates the over-current protection circuit when the current is too high. The protection circuit limits the output current and shuts down the output when the current is too high.

The LNK626PG is also equipped with an auto-restart circuit, which restarts the device when the fault condition is removed. The temperature protection circuit monitors the device\'s internal temperature and shuts down the device if the temperature gets too high to protect it from thermal damage.

Conclusion

The LNK626PG is an ideal primary SMPS controller for a variety of applications. It is designed to be user friendly and reduce inserted external components. It also provides protection against overload and over-current conditions and an auto-restart circuit. The LNK626PG uses a PWM technique to control output voltage and power, and can be used for applications such as mobile phone chargers, digital photo frames, pocket video players, and modem adapters.

The specific data is subject to PDF, and the above content is for reference