LNK3202G-TL

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The LNK3202G-TL is a two-channel current mode power IC for offline AC-DC converters. It offers a variety of features, including a wide input voltage range of 85 VAC to 264 VAC, a quasiresonant Zero-Current Switching (ZCS) flyback operation to reduce EMI, and an internal 150 mA current limit. The IC also has a Digital Pulse Width Modulation (PWM) frequency of 110 kHz and a 10 V startup voltage.

The LNK3202G-TL has a variety of applications and can be used in off-line converters, such as AC-DC adapters, electric power supplies, switch mode power supplies (SMPS), lighting solutions, DC/DC converters, and UPS systems. It is well suited to a wide range of power topologies, including flyback, quasi-resonant, and forward converter topologies. It is also optimally suited for step-down converters. It is small, with a package size of 4.0 mm x 4.0 mm.

The general working principle for the LNK3202G-TL is simple. The circuit exists of two channels: a primary side, consisting of an input supply, a main switch, a snubber capacitor, and a transformer, and a secondary side, consisting of a rectifier, output filter, and a load. The two channels interact with each other through the flux generated in the transformer, due to the input supply. This flux is then processed on the secondary side in the rectifier, and the secondary current is converted back to the primary side through the transformer. This current is then used to activate the main switch, which triggers the switching of power. As a result, the current through the transformer is alternately increased and decreased, thus creating the AC-DC conversion.

The LNK3202G-TL is well suited for a variety of different applications, including a very wide input voltage range, low standby power consumption, a maximum power rating of 500W, and an average efficiency of nearly 96%. The integrated features also make it very cost-efficient and easy to use, and it is capable of working in a variety of topologies, including flyback, forward and quasi-resonant. This makes it a very good choice for both industrial and consumer applications.

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