Datasheet ON Semiconductor MC34023PG

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Detailed Description

The MC34023 series are high speed, fixed frequency, single-ended pulse width modulator controllers optimized for high frequency operation.

They are specifically designed for Off-Line and DC-to-DC converter applications offering the designer a cost-effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.

Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, and a latch for single pulse metering.

The flexibility of this series allows it to be easily configured for either current mode or voltage mode control.

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Manufacturer's Classification

• Power Management > AC-DC Power Conversion > Offline Controllers