Description
The LinkSwitch-II dramatically simplifies the design of low power CV/CC chargers by eliminating the need for an optocoupler and secondary control circuit. The device introduces a revolutionary control technique that allows very tight output voltage and current control, compensating for transformer and internal parameter tolerances along with input voltage fluctuations. The device includes a 700 V power MOSFET, a novel on/off control state machine, a switched high voltage power source for self-biasing, frequency jittering, cycle-by-cycle current limiting, and a hysteretic thermal shutdown on a monolithic IC.