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MAX258 - Push-Pull Transformer Driver

General Description

The MAX258 is a 500mA, push-pull transformer driver designed to provide a simple solution for isolated power supplies.

The IC has an internal oscillator and operates from a single +3.0V to +5.5V supply.

Key Features

  • an integrated oscillator driving a pair of n-channel power switches. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer. The IC operates with up to 500mA of continuous current and features undervoltage lockout and thermal shutdown. The IC includes a low-current shutdown mode to reduce the overall supply current to less than 5µA (max) when the driver is disabled. The MAX258 is available in a small 8-pin (2mm x 3mm) TDFN package and is.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX258 EVALUATION KIT AVAILABLE 500mA, Push-Pull Transformer Driver for Isolated Power Supplies General Description The MAX258 is a 500mA, push-pull transformer driver designed to provide a simple solution for isolated power supplies. The IC has an internal oscillator and operates from a single +3.0V to +5.5V supply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing selection of virtually any isolated output voltage with galvanic isolation. The device features an integrated oscillator driving a pair of n-channel power switches. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer. The IC operates with up to 500mA of continuous current and features undervoltage lockout and thermal shutdown.