VK05CFLTR-E Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	CCFL Driver
Frequency:	--
Voltage - Supply:	--
Current - Supply:	1.5A
Current - Output Source/Sink:	1.5A
Dimming:	No
Operating Temperature:	-40°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	VK05

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Introduction
The VK05CFLTR-E is part of the PMIC (Power Management IC) – Lighting, Ballast Controllers series of products by Vishay Semiconductor. It is a low power, high voltage Integrated Circuit (IC) designed for ballast application mainly used for compact fluorescent lamp (CFL). It is designed to fulfill the small-size, high efficiency, high reliability and low cost requirements of the market by producing an electromagnetic field for the fluorescent lamps.

Features
The VK05CFLTR-E offers some highlights of features that are designed for ballast applications such as low power consumption, high power factor, high efficiency, enhanced EMI control, and low operating temperature. This IC also provides support for two-stage operations, consisting of arcing and striking operations. Additionally, the features of this IC includes an integrated over-temperature protection, an active clamp circuit, wide dimming range, low standby power, and flexibility of operation. These features make the VK05CFLTR-E the ideal choice for ballast applications in compact fluorescent lamps.

Application Field
The VK05CFLTR-E is mainly used in ballast applications in compact fluorescent lamps in both one and two-stage operations, depending on the specific condition. The ballast IC is triggered through a control pin and then it initiates the processes of striking, sustaining, or controlling the light output level of the fluorescent lamp. More specifically, the two-stage operations of this IC include the process of arcing and striking, which identifies the level of light output in the fluorescent lamp and at the same time boosts the power efficiency of the IC. Additionally, the VK05CFLTR-E is designed for high-voltage ballast applications, providing superior protection from power supply drops or spikes. Finally, it is also designed for moisture resistance, ensuring its high reliability and long lifespan in applications such as outdoor lighting.

Working Principle
The VK05CFLTR-E has two main stages of operation – arcing and striking. During the arcing process, the IC takes voltage input and converts it into high voltage pulses to initiate the fluorescent lamp and after the lamp is ignited, the IC goes into the second stage of operation, striking. This is where the chip is regulated to optimize the ballast performance in order to maintain the light intensity of the fluorescent lamp, while managing the energy consumption and heat dissipation. In order to achieve this, the IC is equipped with multiple protection features, such as an over-temperature protection circuit and an advanced active clamp circuit. This circuit monitors the magnetic field generated by the fluorescent lamp and ensures the maintenance of a constant light output even when the voltage fluctuates. Additionally, in order to ensure that the IC maintains the efficiency at all times, the VK05CFLTR-E also supports a wide dimming range.

Overall, the VK05CFLTR-E offers a wide variety of features for ballast applications, including low power consumption, high reliability, improved EMI control, high efficiency and wide dimming range. Designed to incur low operating temperature and resist heat, along with superior protection from voltage drops or spikes, this IC is the ideal choice for applications in compact fluorescent lamps. It is capable of performing both arcing and striking operations, allowing the fluorescent lamp to produce a constant and stable light output, without compromising on its energy efficiency.

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