IC packs PFC, ballast control
Keywords:control ic ballast control power
The IRS2580DS includes a boost converter control circuit operating in critical-conduction free-running frequency mode to provide power factor correction with ultra-low THD. It also includes a 600V half-bridge control circuit working at 50 per cent duty-cycle and variable frequency for driving the resonant mode lamp output circuit.
Complete fault protection circuitry is also included for protection against such conditions as mains interrupt or brown-out, lamp non-strike, lamp filament failure and end-of-life. The IRS2580DS requires only two primary control pins to perform all of the necessary ballast functions. These functions include an analogue voltage-to-frequency input pin for programming the different operating frequencies for preheating, igniting and running the lamp, and a PWM output pin for controlling the on and off times during each switching cycle of the PFC boost converter.
Pricing for the IRS2580DS begins at Rs.46.88 ($1.05) each in quantities of 10,000-units. Production quantities are available immediately. The devices are lead free and RoHS compliant. Prices are subject to change.
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