The NCP1398 is a high performance controller for half bridge LLC resonant converters. The integrated high voltage gate driver simplifies layout and reduces external component count. A unique architecture, which includes a 750 kHz Voltage Controlled Oscillator whose control mode permits flexibility when an ORing function is required allows the NCP1398 to deliver everything needed to build a reliable and rugged resonant mode power supply. The NCP1398 provides a suite of protection features with configurable settings to allow optimization in any application. This includes: auto-recovery and latch-off over-current protection, brown-out detection, open optocoupler detection, adjustable soft-start and dead-time.
●Features | | Benefits
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● Adjustable minimum switching frequency with 3% accuracy (improved Fmax of 6%)
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● Keeps the converter operation in the right region & simplifies design
● Brown-out input
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● Simple PFC association
● 1 A / 0.5 A Peak Current Sink / Source Drive
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● High gate drive capability
● Timer-based OCP input with auto-recovery
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● Allows transient overload, protects against overpower
● Second latched OCP level
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● Protects application in case of short circuit
● Adjustable deadtime from 100 ns to 2 us
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● Prevents shoot-through currents and allows for optimization based on MOSFET characteristics
● Adjustable soft-start
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● Reduces startup currents
● Designed with Pin-to-Adjacent-Pin Short Testing Safety Considerations
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● Enhanced reliability and safety
● Designed with Open Pin Testing Safety Considerations
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● Enhanced reliability and safety
