Power Integrations expands its Linkswitch IC range

Power Integrations has added constant voltage (CV) capability to the Linkswitch range of AC/DC switched-mode power conversion ICs.

The Linkswitch-CV series of devices includes the LNK626PG, a high-power and accurate constant-voltage integrated switcher IC with primary-side control.

The new devices target applications requiring +/- five per cent voltage accuracy, such as AC/DC adapters up to 10W, auxiliary power supplies for appliances up to 17W and multiple-output supplies for consumer products.

Linkswitch-CV integrated circuits simplify the design of CV converters by eliminating all secondary-side CV and control-loop compensation circuitry, reducing the system cost.

Eliminating the optocoupler increases system reliability.

The new devices are energy efficient, consuming less than 70 mW in no-load mode.

The devices combine a 700V power Mosfet, on/off control state machine, self-biasing circuit, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry.

All Linkswitch-CV products are produced in halogen-free and RoHS-compliant packaging.

Linkswitch-CV IC packages feature a high creepage distance to the high-voltage drain pin, which improves reliability in white goods and industrial applications.

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