Power module regulator suited for driving LEDs

16th July 2018
Posted By : Alex Lynn
Power module regulator suited for driving LEDs

A new product has been announced by Analog Devices, with the Power by Linear LTM8005 boost DC/DC µModule (power module) regulator designed for driving LEDs. The LTM8005 includes a DC/DC controller, power switch, Schottky diode and current sense resistor in a 9.0x11.25x2.22mm BGA package. 

The LTM8005 operates from a five to 38V input voltage range and can deliver up to 1.6A of regulated current at an output voltage of up to 38V.

An Inductor is external, enabling the LTM8005 to configure in different operation modes including boost, buck-boost, buck and SEPIC topologies with a coupled inductor. The high reliability H-grade version claimed to guarantee operation from –40 to +150°C. The wide input voltage range and 150°C operation make this µModule LED driver ideal for automotive and industrial lighting applications.

The operating frequency is adjustable from 100kHz to 1MHz, and built-in spread spectrum frequency modulation improves electromagnetic compatibility performance. Brightness of the LEDs can be controlled by the analog CTRL pin and by PWM dimming with a range up to 3,000:1. 

The LTM8005 provides safety features such as output disconnect short-circuit protection, open LED protection, programmable input current limit, as well as, input and output current reporting.

The E and I grades of the LTM8005 operate from –40 to +125°C, and up to 150°C for the H grade.

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