Power Integrations introduced the highly integrated InnoSwitch 3-TN off-line, CV/CC flyback switcher IC. Offered in a safety-qualified, compact MinSOP-16A package and incorporating a 725 V primary MOSFET, isolated feedback, synchronous rectification and secondary-side control, InnoSwitch3-TN ICs enable power supplies that are simple to design and ideal for appliance and industrial auxiliary applications up to 21 W.
The advanced InnoSwitch3-TN flyback controller delivers constant efficiency across the load range and less than 5 mW no-load consumption. The flexibility afforded by FluxLink communication technology means that positive and negative outputs are easily achieved. InnoSwitch3-TN ICs can be used in a 5 V single-output power supply, with two positive output rails, or with both positive and negative rails, without any external feedback components. Safety-rated FluxLink technology also ensures reliable synchronous rectification and accurate constant voltage and constant current on the output. The low forward drop of the SR MOSFET also ensures excellent cross-regulation performance. Comprehensive safety features include output over-current and over-temperature protection. The small MinSOP package and low number of external components required for a full PSU design make the InnoSwitch3-TN ideal for compact implementations.
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