LinkSwitch-II Series AC / DC LED Driver ICs:

The LinkSwitch-II dramatically simplifies low power CV/CC charger designs by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage and current regulation, compensating for transformer and internal parameter tolerances along with input voltage variations.

• Eliminates optocoupler and all secondary CV/CC control circuitry
• Eliminates all control loop compensation circuitry
• Compensates for transformer inductance tolerances
• Compensates for input line voltage variations
• Compensates for external component temperature variations
• Frequency jittering greatly reduces EMI filter cost
• Programmable switching frequency up to 85 kHz to reduce transformer size
• Auto-restart protection reduces power delivered by>95% for o/p short-circuit & control loop faults
• Easily meets all global energy efficiency regulations
• Applications: Chargers for cell/cordless phones, PDAs, MP3/portable audio devices, LED drivers