MIC2287 PWM White LED Drivers

Microchip Technology MIC2287 PWM White LED Drivers are a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constant-current, white LED driver applications. With a maximum output voltage of 34V and a switch current of over 500mA, the MIC2287 easily drives a string of up to eight white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The MIC2287 implements a constant frequency, 1.2MHz PWM control scheme. The high-frequency PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM scheme, as opposed to variable frequency topologies, is much lower noise and input ripple injected back to the battery source. To optimize efficiency, the feedback voltage is set to only 95mV. This reduces the power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery.

Resultat: 3
Välj Bild Artikelnummer Tillverk: Beskrivning Datablad Tillgänglighet Prissättning: (SEK) Filtrera resultaten i tabellen efter enhetspris baserat på din kvantitet. Antal RoHS ECAD-modell Antal utgångar Topologi Utgångsström Paket/låda Maximal matningsspänning Minimal matningsspänning Manövreringsfrekvens Utgångsspänning Minsta drifttemperatur Maximal drifttemperatur Egenskaper Förpackning
Microchip Technology LED-belysningsdrivkretsar White LED Driver w/ 34V OVP 6 462På lager
Min.: 1
Multipla: 1
Papprulle: 5 000

1 Output Boost 750 mA MLF-8 10 V 2.5 V 1.2 MHz Adjustable - 40 C + 125 C PWM Dimming, Open LED Protection Reel, Cut Tape, MouseReel
Microchip Technology LED-belysningsdrivkretsar White LED Driver 5 409På lager
Min.: 1
Multipla: 1
Papprulle: 3 000

1 Output Boost 750 mA SOT-23-5 10 V 2.5 V 1.2 MHz Adjustable - 40 C + 125 C PWM Dimming, Open LED Protection Reel, Cut Tape, MouseReel
Microchip Technology LED-belysningsdrivkretsar White LED Driver w/ 24V OVP 1 377På lager
Min.: 1
Multipla: 1
Papprulle: 5 000

1 Output MLF-8 10 V 2.5 V 1.2 MHz - 40 C + 125 C Reel, Cut Tape, MouseReel