LNK418EG Allicdata Electronics
Allicdata Part #:

596-1401-ND

Manufacturer Part#:

LNK418EG

Price: $ 1.71
Product Category:

Integrated Circuits (ICs)

Manufacturer: Power Integrations
Short Description: IC LED DRIVER OFFL DIM ESIP-7C
More Detail: LED Driver IC 1 Output AC DC Offline Switcher Flyb...
DataSheet: LNK418EG datasheetLNK418EG Datasheet/PDF
Quantity: 1000
240 +: $ 1.55224
Stock 1000Can Ship Immediately
$ 1.71
Specifications
Series: LinkSwitch®-PH
Packaging: Tube 
Part Status: Active
Type: AC DC Offline Switcher
Topology: Flyback
Internal Switch(s): Yes
Number of Outputs: 1
Voltage - Supply (Min): 36V
Voltage - Supply (Max): 725V
Voltage - Output: --
Current - Output / Channel: 2.39A
Frequency: 66kHz
Dimming: PWM
Applications: Lighting
Operating Temperature: -40°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package: eSIP-7C
Description

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LNK418EG is an integrated power management integrated circuit for controlling white LED backlight. It is classified under PMIC – LED Drivers, taking advantage of the latest in power management technology to deliver high performance and power savings in a single package.

It is designed to reduce power consumption of white LED backlight in LCD displays. It consists of two separate white LED channels, each with its own 32-bit PWM controller and 6-bit digital amplitude control, which allows the dimmest level to be set accurately. It also features multiple modes of operation including a dimming-only mode and a PWM controlled mode.

The LNK418EG features a four stage switched capacitor regulator, dubbed Koov, which reduces power conversion losses in the backlight circuit, further improving efficiency and reducing power consumption. The voltage controlled oscillator provides an adjustable base frequency for the output PWM, allowing the user to optimize frequency for desired brightness levels.

The LNK418EG also provides several system level protection circuits that provide a safe user experience. This includes an over-temperature, an over-voltage, and an over-current protection circuit that protects the device from damage from external events. There is also a power down timer to ensure the LED backlight is automatically shut off when inactive.

The LNK418EG can be used in a variety of lighting applications. It is usually found in LED backlighting modules, LED billboards, LED signs, LED displays, LED tubes, LED strips and LED atmospheric lighting. It can also be used in automotive applications such as backlighting in instrument panels and lighting in rearview mirrors.

In terms of working principle, the LNK418EG uses a pulse-width modulation (PWM) controller and a 6-bit digital amplitude control circuit to regulate the amount of power applied to the LED backlight. This allows for dynamic control of brightness and power. The base frequency of the PWM output is adjustable and can be configured to deliver the desired brightness while maintaining efficiency.

The voltage controlled oscillator (VCO) also plays an important role in the working of the LNK418EG. The VCO provides the base frequency of the PWM, allowing the user to adjust the frequency to tune the desired brightness level. In addition, the VCO provides a system-level synchronization, which eliminates interference between multiple backlight channels.

The power management features of the LNK418EG also help to maximize efficiency. The Koov four-stage switched capacitor regulator and the power down timer work in conjunction to reduce power consumption and ensure a safe user experience. This makes the LNK418EG an ideal solution for applications that require efficient power management for LED backlights.

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

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