Demonstration circuits 1511A-A and 1511A-B feature the LTM®8042 and the LTM8042-1, which are respectively complete 1A and 350mA µModule LED drivers. The demonstration circuits are assembled as boost topologies, accepting an input voltage from 3V to 30V and supporting an output up to 32V (see Table 1).

The solar-LED streetlight controller consists of one 80 W battery charger and one 25 W LED driver. During the daytime, when there is sufficient sunlight, the charger converts the electricity from the solar panel and charges the battery. At nighttime, the battery powers on the LED lamp as streetlight.

The LM3401 is a switching buck regulator derived current source designed to drive a series string of high power, high brightness LEDs. The LM3401 controls an external P-FET, allowing the user to select a power device for the desired level of forward LED current. The LM3401 demo board can supply continuous current as high as 1.0A from an input voltage range of 4.5V to 35V. It is designed to operat…

This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 4 to 10 series connected LEDs from an 180 VRMS to 265 VRMS, 50 Hz input power supply. The key performance characteristics under typical operating conditions are summarized in this application note.

The LM3492 integrates a boost converter and a two-channel current regulator to implement a highly efficient and cost effective LED driver for driving two individually dimmable LED strings with a maximum power of 15 W and an output voltage of up to 65 V. The boost converter employs a proprietary projected-on-time control method to give a fast transient response with no compensation required, and a…

The LED7707 consists of a high efficiency monolithic boost converter and six controlled current generators (rows) specifically designed to supply LEDs arrays used in the backlighting of LCD panels. The device can manage an output voltage up to 36 V (i.e. 10 white LEDs per row).

This application note describes the functioning of the STEVAL-ILL026V1 non-isolated 3 W offline LED driver power supply designed using the VIPER22A-E low power offline SMPS primary switcher from STMicroelectronics. The circuit regulates the load current to 350 mA and generates about 10 V. The load is composed of three high-brightness (HB) LEDs, connected in series.

Demonstration circuit DC2342A is a 60V synchronous boost LED controller featuring the LT3762. It drives a single string of LEDs at 2A up to 32V when VIN is between 7V and 28V. It runs down to 4VIN with reduced ILED and can withstand VIN transients as high as 30V.

The MCP1643 Synchronous Boost LED Constant Current Regulator Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP1643 device. This board demonstrates the MCP1643 in a boost converter application supplied by one AA battery, or from an external voltage source, which drives an LED with four selectable currents. The MCP1643 Synchronous Boost LED Constant Current Regulator E…

This document describes a cost effective power supply utilizing the LYTSwitch-0 family (LYT0006P) in a highly compact buck topology.