LTM3205SRDL

Series:	LTM
Part Status:	Active
Lead Free Status / RoHS Status:	--
Color:	Red
Moisture Sensitivity Level (MSL):	--
Wavelength - Peak:	645nm
Configuration:	Single
Current:	2mA
Millicandela Rating:	6mcd
Viewing Angle:	40°
Lens Type:	Diffused
Lens Style/Size:	Round with Domed Top, 5mm, T-1 3/4
Voltage Rating:	1.7V

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

Introduction

LEDs are an important component in many electronics systems. Although they provide a wide range of advantages, they come with a price in terms of cost and power consumption, as well as other considerations. To reduce the impact of cost, power consumption and other factors, many manufacturers have designed specific LED-based products that are optimized for specific application fields and requirements. One such product is the LTM3205SRDL from Linear Technology, which is a compact single-conversion 6x6x1 Wide Input Temperature Sensing LED driver that is specifically designed for LCD backlighting applications.

LTM3205SRDL for LCD Backlighting

The LTM3205SRDL is an easy-to-use, cost-effective and power-efficient Compact Single-Conversion LED Driver for LCD backlighting. It delivers 6x6x1 white LED backlighting with a wide dimming range for different LCD applications. Its principal benefit is its 8-bit PWM dimming resolution, allowing it to provide adjustable brightness over a wide range. Additionally, the LTM3205SRDL supports the linearfade Dimming feature, which reduces stroboscopic effects by gradually changing the brightness of the LEDs, providing a more even and natural transition.

Features

The LTM3205SRDL is designed to meet the space and power constraints of LCD backlighting applications. Some of its key features include:

• Wide Input Voltage Range: 3.5V – 28V
• Wide Dimming Range: 1V – 15V
• 8-Bit PWM Dimming
• High Peak LED Currents: 200mA
• Low quiescent current: 45mA
• Linear-Fade Dimming for Stroboscopic Effects Reduction
• Synchronous Shutdown for noise reduction

The LTM3205SRDL also features a thermal sensor that helps ensure the maximum current is limited to a safe level when the ambient temperature rises above pre-set threshold levels. The device also has a set of diagnostic features, including overtemperature and overload flags, that indicate when a fault condition has occurred.

Applications

The LTM3205SRDL is a great solution for one-time applications such as mobile handsets, consumer displays, gaming monitors and LCD TVs. Its 6x6x1 Wide Input Temperature Sensing LED driver feature makes it suitable for demanding applications including industrial, medical and aviation displays. Additionally, its wide dimming range and 8-bit PWM dimming makes it an ideal choice for video projectors and large outdoor displays.

Working Principle

The LTM3205SRDL is a single channel LED driver that uses Pulse Width Modulation (PWM) to provide adjustable brightness over a wide range. It is a linear low-dropout (LDO) regulator that operates from either an input voltage or current source. When the voltage or current source is connected, the device first detects the input voltage or current and then adjusts its output voltage accordingly. The device employs a PWM-controlled MOSFET switch to generate a regulated output voltage. The user sets the LED current via a single resistor connected between the IC and the LED to be driven. The LED current is proportional to the resistor value, and the PWM dimming is dependent on the applied voltage or current. The LTM3205SRDL also features a linear-fade dimming feature, which allows a smooth and even transition in brightness when the backlighting is adjusted.

Conclusion

The LTM3205SRDL from Linear Technology is a compact single-conversion 6x6x1 Wide Input Temperature Sensing LED driver for LCD backlighting. It is an efficient, cost-effective and easy-to-use solution for applications such as mobile handsets, consumer displays, gaming monitors, LCD TVs, industrial, medical and aviation displays, video projectors and large outdoor displays. The device features an 8-bit PWM dimming resolution, linear-fade dimming, synchronous shutdown and diagnostic features, making it a great choice for demanding applications.

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

Part Number	Manufacturer	Price	Quantity	Description