HV857LK7-G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	EL Lamp Driver
Frequency:	1kHz
Voltage - Supply:	1.8 V ~ 5 V
Current - Supply:	20mA
Current - Output Source/Sink:	--
Dimming:	No
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-WDFN Exposed Pad
Supplier Device Package:	8-DFN (3x3)
Base Part Number:	HV857

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HV857LK7-G Application Field and Working Principle

PMIC - Lighting, Ballast Controllers is a category of power management integrated circuits (PMICs) used to control energy sources. These energy sources can range from alternating current to fluorescent lighting. As the demand for energy efficient and cost effective solutions grows, so does the necessity for PMIC solutions that allow simple deployment and a wide range of operational capabilities. One such PMIC solution is the HV857LK7-G, a High Voltage Low Distortion and Low EMI controllers specifically designed for the purpose of functioning as a gate driver for ballast circuits. This LSI provides the features necessary to drive the start-up, operating, and switch-off of low temperature plasma, metal halide, and fluorescent lighting ballasts. Its features include an integrated boost start circuit and a self-managing init engine.In addition to its ability to control and regulate both current and voltage to an electrical coil or lamp, the HV857LK7-G also allows for dimming and customization based on user requirements, making it ideal for any number of applications in the commercial, industrial, and residential lighting sectors.The HV857LK7-G was designed with a wide range of operating parameters, specifically to ensure the smooth and efficient management of power in a variety of different applications. The HV857LK7-G can be powered from 5-36V, offers current drain of up to 25mA and feed-forward voltage of up to 19V, and maintains a 10KHz switching frequency when operating within its rated range. In addition, it can even be operated as a low-cost solution without the need for extra components, such as boost components or extra programming devices. The HV857LK7-G also features a die-on-board (DOB) construction that substantially reduces the unnecessary pinouts, allowing for a more compact design and cost effective installation. As a result, it can be used in a wide range of applications, such as LED and LED/TFT-LCD lighting, as well as lighting control systems. The strength of the HV857LK7-G lies in its ability to accurately and reliably drive, control, and regulate varying levels of current and voltage to an electrical source. Specifically, it is capable of precisely regulating the electric current in a treated area to compensate for the status of the light source, clocking in a minimum time of 7µs per cycle between light source on and off, and additionally controlling and measuring the current drawn from the light source.In conclusion, the HV857LK7-G is a PMIC-Lighting, Ballast Controllers solution that offers unique and powerful features for energy efficient and cost effective lighting applications. It has the capability to precisely regulate current and voltage to an electrical source and clocking in a minimum time of 7µs per cycle, while also allowing for the dimming and customization of light settings. Its die-on-board construction allows for a more compact and cost effective design, making it an optimal choice for any number of applications in the commercial, industrial, and residential lighting sectors.

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