This wide range evaluation board showcases the LM3429 NFET controller used with a buck-boost current regulator. It is designed to drive 4 to 8 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 70V. The evaluation board showcases most features of the LM3429 including PWM dimming, overvoltage protection and input under-voltage lockout.

This evaluation board showcases the LM3429 NFET controller used with a boost current regulator. It is designed to drive 9 to 12 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 26V. The evaluation board showcases most features of the LM3429 including PWM dimming, overvoltage protection and input under-voltage lockout.

The VIPer12A is low cost monolithic smart power devices with integrated PWM controller designed to operate in the wide range input voltage, from 90 to 264Vac.

This circuit is designed to drive a single InGaN UV LED (Vf = 3.8V) at a forward current of 420 mA with a peak-to-peak ripple current of 80 mA or less. The input is 6V to 42V, with LED current and switching frequency (400 kHz) optimized at Vin = 13.8V.

The VIPer22A is low cost monolithic smart power devices with integrated PWM controller designed to operate in the wide range input voltage, from 90 to 264Vac.

* For Constant Current, the board must be modified as described on page 6 of the user guide. * This application note describes the characteristics and features of a 130 W demonstration board (EVL130W-SL-EU), tailored on an LED power supply specification for street lighting.

The LM3501 is a synchronous step-up DC/DC converter designed for white LED applications. The evaluation board is set up to drive 3 standard VF white LEDs from a single Li-Ion battery. A fourth LED pad (D4) is included for testing of up to 4 low VF white LEDs.

The ZXLD1360EV2, Figure 1, is an evaluation board for evaluating the ZXLD1360 1000mA LED driver with internal switch. The evaluation board can be used to drive a 1 amp LED, or an external choice of LEDs. The number of external connected LEDs depends on the forward voltage of the LEDs connected. A 6 way connector is provided, to allow an external 0.1 inch connecter to be inserted. The LED fitted o…

The STEVAL-ILL019V1 demonstration board was developed to drive high brightness and power RGGB LEDs used in many different lighting applications. Thanks to RGGB LEDs, it is possible to easily modify the color of the light, change the brightness level, implement additional lighting features such as automatic color changes or a blinking mode, improve lighting efficiency compared to standard lighting…

Figure 1 shows a typical simple low cost solution with a ZXSC310 driving a 1W LED with a typical forward voltage of 3.4V at 300mA from a dual cell battery. A dual cell supply will have a voltage range of 1.8V to 3V for alkaline type batteries.