LM5033SDX

• Internal high voltage (100V) start-up regulator
• Single resistance oscillator setting
• Synchronizable
• Precision reference output
• Adjustable soft-start
• Overcurrent protection
• Direct photocoupler interface
• 1.5A peak gate driver
• Thermal shutdown

illustrate

The LM5033 high voltage PWM controller contains all the functions needed to implement push-pull, half-bridge, and full-bridge topologies. Applications range from closed-loop voltage-mode converters with highly regulated output voltages, or open-loop "DC transformers" such as intermediate bus converters (IBCs) with efficiencies > 95%. Two alternating gate driver outputs guarantee dead time. The LM5033 includes a start-up regulator that operates over a wide input voltage range of 15V to 100V. Other features include: precision reference output, current limit detection, remote shutdown, soft-start, synchronization capability, and thermal shutdown. The total propagation delay of this high-speed IC is less than 100 ns and a 1MHz capable oscillator.

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• Intermediate DC/DC bus converters
• Communication power converters
• Industrial power converters
• +42 V automotive system