LNK585GG-TL

Series:	LinkZero™-AX
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Isolation:	Either
Internal Switch(s):	Yes
Voltage - Breakdown:	700V
Topology:	Flyback
Voltage - Supply (Vcc/Vdd):	--
Duty Cycle:	63%
Frequency - Switching:	100kHz
Power (Watts):	5W
Fault Protection:	Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit
Control Features:	--
Operating Temperature:	-40°C ~ 150°C (TJ)
Package / Case:	8-SMD (7 Leads), Gull Wing
Supplier Device Package:	SMD-8C
Mounting Type:	Surface Mount

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LNK585GG-TL Application Field and Working Principle

PMIC - AC DC Converters, Offline Switchers Power management integrated circuit (PMIC) is an electronic integrated circuit (IC) that is used to manage power supplied to other electronic components inside a system, such as motors, sensors, and computing operations. AC-DC converters, also known as AC adapters, are devices that convert alternating current (AC) to direct current (DC). Offline switchers, also known as linear offline switchers, are power supplies that use a switch mode topology to convert one voltage or input to another voltage or output. The LNK585GG-TL is a hybrid-mode controller from Power Integrations. It is designed to be used in an AC/DC converter or an offline switcher. The LNK585GG-TL is a multi-function IC that combines several features including power supply control, line voltage regulation, and EMI filtering. The LNK585GG-TL is a highly integrated controller that provides a complete additional function controller solution for AC/DC converters and linear offline switchers. The IC includes two pulse-width modulation (PWM) controllers, a MOSFET driver, and a negative temperature coefficient (NTC) spike filter. The LNK585GG-TL also contains several protection features such as current limit and open-circuit protection. The PWM controllers generate the control signals of the primary and secondary control loops, while the MOSFET driver drives the high-side and low-side MOSFETs when a high-level PWM input is received. The IC also features current mode control, voltage mode control, and cycle-by-cycle current limit. The LNK585GG-TL provides linear regulation of input and output voltages for precise regulation of output voltage. This is done by using an adjustable error amplifier and an external resistive divider network. The IC also features a voltage source output for low inrush current protection. The EMIFIL NTC spike filter improves power supply efficiency and system performance. It uses an NTC device to absorb fast, large input current spikes and reduce their contribution to total harmonic distortion (THD). The LNK585GG-TL offers several protection features, such as overvoltage, undervoltage, open-circuit, and overcurrent protection. The IC also includes a circuit breaker and an adjustable over-temperature shutdown feature, which helps to protect the outputs from dangerous power surges. In summary, the Power Integrations LNK585GG-TL is an all-in-one controller designed for AC/DC converters and linear offline switchers. It combines a high performance microcontroller with several features, such as PWM controllers, a MOSFET driver, a NTC spike filter, error amplifier, resistive divider, low inrush current protection, current limit, and open-circuit protection. All these features make the LNK585GG-TL a perfect fit for applications that require accurate and reliable control.

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