LED control IC offers increased efficiency, simplified design and cost savings
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By
eeNews Europe
The IRS2548D, which combines Power Factor Correction (PFC) and half-bridge driver in a single IC, offers greater than 88 percent efficiency for a 40-V/1.3-A HBLED load to deliver a higher efficiency solution compared to alternative Flyback converter solutions at power levels above 60 W.
The new device achieves PWM dimming down to less than two percent light output and offers protection features that include programmable PFC and half-bridge over-current protection, latch immunity, and ESD protection. The IRS2548D also includes variable frequency oscillator, fixed internal 1.6 us deadtime, internal bootstrap MOSFET, internal 15.6 V zener clamp diode on Vcc, and micropower startup (250 µA).
Visit International Rectifier at www.irf.com.
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