NEWS

What is an LED Driver ic that is a necessarity in a LED light

29-05-2015

 

An LED driver ic is an electrical device which regulates the power to an LED or a string (or strings) of LEDs. An LED driver ic responds to the changing needs of the LED, or PCBA circuit, by providing a constant quantity of power to the LED as its electrical properties change with temperature. A LED driver ic is a self-contained power supply which has outputs that are matched to the electrical characteristics of the LED or LEDs. LED driver ics may offer dimming by means of pulse width modulation circuits and may have more than one channel for separate control of different LEDs or LED arrays. The power level of the LED is maintained constant by the LED driver ic as the electrical properties change throughout the temperature increases and decreases seen by the LED or LEDs. Without the proper LED driver ic, the LED may become too hot and unstable, therefore causing poor performance or failure.

 

Types of LED Driver ics

There are several kinds of LED driver ics. At Future Electronics we stock many of the most common types categorized by output current per channel, supply voltage, output voltage, maximum switching frequency and packaging type.

 

The most common sizes for supply voltage are 2.3 to 5.5 V, 2.7 to 5.5 V and 3 to 5.5 V. We also carry LED driver ics with supply voltage up to 630V. The output current per channel can be between 250 μA and 50 A, with the most common chips having an output current per channel of 20 mA, 25 mA and 100 mA. 

 

Applications for LED Drivers:

Some applications for LED driver ics are:

Industrial / outdoor lighting

Commercial lighting

Residential lighting

Cell phone camera flash

Automotive interior or tail lights/ off-road led light/LED headlight/LED driving light

Garden lighting

Portable flashlight / torch

Signage

Elevator lighting

LCD backlighting

 

Choosing the Right LED Driver ic:

When you are looking for the right LED drivers, you can filter the results by various attributes by search: by Supply Voltage (-0.3 to +20 V, 2.7 to 5.5 V, 3 to 5.5 V,… ), Output Voltage (up to 198 V) and Maximum Switching Frequency (from 200 Hz to 200 GHz) to name a few. You will be able to find the right LED driver ic that can be used as a constant current LED driver ic, high power LED driver ic, RGB LED driver ic, 24v LED driver ic, dimmable LED driver ic, in a LED driver board or LED driver IC (integrated circuit) and for any circuits that may require LED driver ic chips.

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