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MAX17498A Datasheet AC-DC and DC-DC Peak-Current-Mode Converters

Manufacturer: Maxim Integrated (now Analog Devices)

General Description

The MAX17498A/MAX17498B/MAX17498C devices are current-mode fixed-frequency flyback/boost converters with a minimum number of external components.

They contain all the control circuitry required to design wide input voltage isolated and nonisolated power supplies.

The MAX17498A has its rising/falling undervoltage lockout (UVLO) thresholds optimized for universal offline (85V AC to 265V AC) applications, while the MAX17498B/ MAX17498C support UVLO thresholds suitable to lowvoltage DC-DC applications.

Overview

EVALUATION KIT AVAILABLE MAX17498A/MAX17498B/MAX17498C AC-DC and DC-DC Peak Current-Mode Converters for Flyback/Boost Applications.

Key Features

  • S Peak Current-Mode Converter S Current-Mode Control Provides Excellent Transient Response S Fixed Switching Frequency.
  • 250kHz: MAX17498A/MAX17498C.
  • 500kHz: MAX17498B S Flexible Error Amplifier to Regulate Both Positive and Negative Outputs S Programmable Soft-Start to Reduce Input Inrush Current S Programmable Voltage or Current Soft-Start S Power-Good Signal (PGOOD) S Reduced Power Dissipation Under Fault.
  • Overcurrent Protection.
  • Thermal Shutdown with Hysteresis S.