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MAX258 Datasheet Push-Pull Transformer Driver

Manufacturer: Maxim Integrated (now Analog Devices)

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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.

Overview

MAX258 EVALUATION KIT AVAILABLE 500mA, Push-Pull Transformer Driver for Isolated Power Supplies.

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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