LNK586GG

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PMIC (Power Management Integrated Circuits) are critical components used extensively in commercial electronics and consumer electronic products. AC DC Converters, Offline Switchers, and LNK586GG are common examples of PMICs. This article will provide an overview of the application field and working principle of theLNK586GG type of PMIC.

The LNK586GG is a kind of adaptive off-line switcher IC specially designed for AC-DC adapter, battery charger and other industrial power supply applications. It includes a reset DRAIN threshold voltage detector, pulse width modulated (PWM) oscillator, improved under-voltage lockout (UVLO), frequency jittering, over-current protection, thermal shut-down, and auto-restart mode. This IC is specially designed for energy efficient and low standby power supply, ensuring that the applications it is used in meet current energy regulations requirements.

The LNK586GG integrates a supervisory reset circuit with adjustable threshold voltage and active low, active high control switching logic. The reset circuit works by regulating the charger\'s power available to the output. It automatically disconnects the power when the output voltage drops below a programmed threshold voltage, preventing the system from consuming too much power. The reset circuit also protects the active switch and prevents overloads. In addition, the LNK586GG has an integrated PWM oscillator and UVLO allowing the controller to automatically detect the power input and adjust the charging pulse width and voltage to optimize the charging cycle.

The LNK586GG also features an adjustable frequency jittering control that helps to reduce the EMI generated by the external series inductor. In addition, the IC includes an integrated over-current protection circuit to protect against possible over-current and over-temperature conditions. Finally, the LNK586GG includes a thermal shutdown circuit which will turn off the controller if the internal temperature exceeds the threshold.

The LNK586GG can be used in various application fields. It is especially suitable for AC/DC adapters, battery chargers, stand-by power supplies, and other industrial switching power supplies that require high efficiency and protection against over-current and over-temperature conditions. Moreover, the integrated frequency jittering circuits provide an extra layer of protection. Because of its excellent power management characteristics, the LNK586GG is ideal for a variety of consumer electronics and portable device applications.

In summary, the LNK586GG is a PMIC designed for AC/DC adapters, battery chargers, stand-by power supplies and industrial switching power supplies. It integrates a reset circuit to protect against over-current and over-temperature conditions, a PWM oscillator, UVLO, and frequency jittering circuits for EMI reduction. Additionally, the thermal circuit provides an extra layer of protection against possible system failure. The LNK586GG is well-suited for a variety of consumer electronics and portable device applications.

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