ICE5GR4780AGXUMA1 Integrated Circuits (ICs)

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active
Package / Case:	14-SOIC (0.154", 3.90mm Width), 12 Leads
Supplier Device Package:	PG-DSO-12-21
Mounting Type:	Surface Mount

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ICE5GR4780AGXUMA1 Application Field and Working Principle

ICE5GR4780AGXUMA1 is a device that belongs to the PMIC - AC/DC Converters, Offline Switchers category. This device is an extremely flexible integrated offline flyback switcher optimized for smooth conduction mode operation. The ICE5GR4780AGXUMA1 integrates most of the control and power functions required for the implementation of an AC/DC offline power conversion application.

Application Field

The ICE5GR4780AGXUMA1 is designed for applications such as flat panel display, DVD recorder, an analog box, LCD monitor, LED driver, LED streetlight, LED strip, LED lamp, LED TV, Power adaptor, Set-Top box, and Battery charger. Specifically, it is ideal for any application that requires ultra-low cost, power-efficient and highly integrated AC/DC conversion.

Working Principle

The ICE5GR4780AGXUMA1 is based on a flyback converter topology and uses an efficient peak current control system. It is capable of diode emulation, power good, and crowbar overvoltage protection, as well as other features. The IC is connected to the primary side of an offline flyback transformer with a set of turn ratios.The switching frequency is controlled by an internal fixed frequency oscillator or an external synchronization signal. A detect pin performs the current mode control loop, allowing the IC to follow the load variation in the primary side, achieving optimized transient response and minimal steady state output voltage ripples.The ICE5GR4780AGXUMA1 is capable of controlling a wide range of power levels from several watts up to hundred of watts in a single power stage. The output voltage can also be configured and allows for multiple outputs or multiple supplies in a single system.The IC has several protection features such as Protection against Overvoltage, Short Circuit and Overcurrent. The IC operates over a wide input voltage range, allowing a single solution to cover a broad range of input sources and voltages. The ICE5GR4780AGXUMA1 is highly efficient, with typical efficiency of up to 95%.The ICE5GR4780AGXUMA1 includes several features that ensure a reliable and robust operation of the AC/DC conversion it enables. It includes active curve compensation, line under/over voltage, load/line regulation, soft start, and output current limiting, among others.Overall, the ICE5GR4780AGXUMA1 is an extremely versatile and efficient device, designed to provide a highly reliable AC/DC conversion for a variety of offline applications. Its space-saving integrated design and efficient power conversion processes make it ideal for applications requiring ultra-low cost, low power, and high reliability. As such, this device is an excellent choice for designing highly efficient, ultra-low cost,and highly-reliable AC/DC conversion solutions.

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