Constant Current Buck Led Driver

The ncl30160 operates with an input voltage range from 6 3 v to 40 v.

Constant current buck led driver.

By default the femtobuck is driven at 330ma. These led drivers offer the highest efficiency lowest noise and the smallest footprints. With a 0 205 v reference voltage feedback control to minimize power dissipation an external resistor sets the current as needed for driving various types. Other features include integrated schottky diodes accurate led current matching and multiple output capability.

Led flashlights led lightbulbs 3 description the lm3405a is a 1 a constant current buck led driver designed to provide a simple high efficiency solution for driving high power leds. Ideal for industrial and general lighting applications utilizing the minimal external components. They accept input voltages from 4 5 vdc to 65 vdc and deliver up to 1 a average led current with 3 accuracy. The hysteretic control gives good power supply rejection and fast response during load transients and pwm dimming to led arrays of varying number and type.

Our synchronous 4 switch buck boost led driver architecture transitions between buck pass through and boost operating modes seamlessly offering a well regulated output despite the wide variations of the input voltage. The chart below shows the number of serial connected leds and the required power supply voltage. Analog devices step down buck led drivers are ideal for applications where the input voltage is above the led voltage as in many automotive or industrial applications. That current can be reduced by either presenting an analog voltage or a pwm signal to the board.

0a011 d v xxx 19 79 sale price. They are suitable for driving single string of 3 w hbled with up to 96 efficiency. The ncl30160 is an nfet hysteretic step down constant current driver for high power leds. The femtobuck is a small size single output constant current led driver.

Other differentiating features include integrated schottky diodes accurate led current matching and multiple output capability. You can series parallel connect leds to drive more leds as needed. With constant current led driver it s best to connect leds in series so that all leds get the same exact current. The lm3414 and lm3414hv are 1 a 60 w 1 common anode capable constant current buck led drivers.

The a011 series luxdrive flexblock led buck boost constant current driver is a low voltage dc input module for powering high brightness leds.