IS31LT3350-V1SDLS2-TR Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The IS31LT3350-V1SDLS2-TR is an LED driver integrated circuit (IC) that belongs to the family of power management ICs (PMICs), specifically the LED drivers. It is capable of controlling multiple white LEDs that can be used to replace a fluorescent backlight. It is available in different pin counts and in common packages, such as the SOT23-6L variant.

Functionality

The IS31LT3350-V1SDLS2-TR IC provides a low voltage power supply for multiple LED strings that can reach up to 20V. It also offers LED channels with a small current range of up to 30mA. It is built with a step sequencer for LED control, which allows for a range of dimming effects and illumination levels. The step sequencer works by sequentially activating each LED channel, which provides a ripple-free sequence at a very low frequency.

Features

The IS31LT3350-V1SDLS2-TR IC offers several features that make it an attractive choice for applications requiring multiple LED channels. These features include:

• High efficiency
• Low stand by current
• Adaptive current control with programmable upper and lower limits
• Programmable power-on delay
• Programmable slew rate limiting
• High integration level
• Wide operating voltage range

Applications

The IS31LT3350-V1SDLS2-TR IC is designed to be used in LCD backlight applications, such as those in notebook PCs, TVs, and the like. It can be used in many different applications, including LCD and LED backlighting, decorative lighting, automotive lighting, digital camera flash, and other consumer devices in which multiple LEDs are required.

Working Principle

The IS31LT3350-V1SDLS2-TR IC is built with a digital current source, which converts a digital signal into a dc voltage for LED driving purposes. The current source includes programmable maximum and minimum LED currents, an adjustable LED level, and an adjustable LED turn-on delay. It also has a built-in R-C oscillator, which is used to drive the LED strings in a ripple-free step sequence. The R-C oscillator is adjustable and can be programmed to achieve different dimming levels. Additionally, it has a programmable power-on reset circuit, which ensures that the LED channels are reset upon power-on.

Conclusion

The IS31LT3350-V1SDLS2-TR IC is a versatile LED driver that is well suited for many applications. Its high integration level and low stand-by current makes it a great choice for applications requiring multiple LED channels. Its wide operating voltage range, adaptive current control, and programmable power-on delay make it a great choice for applications that require precise control of multiple LEDs.

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