An introduction of new micro DC/DC mode LED driver series device LTM8040

2009 years February 17th, (Linear Technology technology company Corporation) launched DC/DC new micro module (uModule) LED drive series first LTM8040 device, the device contains all the paste circuit is arranged in a compact package 9mm x 15mm x 4.32mm surface, including inductors. The LTM8040 to drive a LED series like increased input capacitor and connected LED as simple strings. LTM8040 to + 2% accuracy and full load current drive current from 0A to 1A by a on LED. The device uses the output voltage clamp circuit to protect itself from accidental LED on open, as well as a frequency foldback circuit protection from short circuit accident influence. LTM8040 available in two lithium ion batteries, rectifier 12VAC 24V and industrial application LCD backlight lighting, portable lighting and lighting range.

LTM8040 can input voltage range of 4V to 36V into lower 2.5V to 13V voltage, which is suitable for the pressure drop different (VD) driving a variety of color and white LED. The device also has simulated and real color PWM (True Color PWM?) dimming, constant color dimming range allows the 400:1. LED can current amplitude with a single linear resistance control in 0A to 1A. The switching frequency of the default is 500kHz, the available a resistance adjustment to achieve until 2MHz operation.

The 9mm x LTM8040 15mm x 4.32mm LGA (LGA) package, there are 0? C to 125? C and -40? C to 125? C two temperature level (internal package temperature). In the 1000 piece as the unit price for each batch purchase, $7.45.

Performance summary: LTM8040 complete 1A step-down switching LED driver and current source circuit integrated in a single package, 4V to 36V work input range from LED 0A precise current to 1A control LED open and shutdown current and small footprint 9mm x, flat 15mm x 4.32mm LGA short circuit protection, 2uA the below

An introduction

Linear Technology Corporation (Linear Technology Corporation) was founded in 1981 years, is a high performance linear integrated circuit manufacturers. Lindley Pieter became a listed company in 1986 years, and became a member of the listed company mainly consists of S&P 500 index in 2000 years. Linear technology products include high performance amplifier, comparator, voltage reference, monolithic filter, linear regulator, DC/DC converter, battery charger, data converter, communication interface circuit, RF circuit, signal conditioning uModuleTM products and many other analog functions. High performance circuits can be used for telecommunications, technology companies such as cellular phones, network equipment, optical switches of the laptop and desktop computer, computer peripherals, video / multimedia equipment, industrial instrumentation, safety monitoring equipment, including digital cameras, MP3 player, high-end consumer products, medical equipment, automotive complex the field of electronic equipment, factory automation, process control, military and aerospace systems.