Resonant Mode Controller 15-Pin SOIC N T/R

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.

• High-Frequency Operation from 50 kHz up to 750 kHz
• Adjustable Minimum Switching Frequency with ± 3% Accuracy
• Adjustable Dead-Time
• Startup Sequence Via an Externally Adjustable Soft-Start
• Precise and High Impedance Brown-Out Protection
• Latched Input for Severe Fault Conditions, e.g. Over Temperature or OVP
• Timer-Based Auto-Recovery Overcurrent Protection
• Latched Output Short-Circuit Protection
• Open Feedback Loop Protection for NCP1398B Version
• Disable Input for ON/OFF Control
• Skip Mode with Adjustable Hysteresis
• VCC Operation up to 20 V
• 1 A / 0.5 A Peak Current Sink / Source Drive Capability
• Common Collector Optocoupler Connection for Easier ORing
• Internal Temperature Shutdown
• Designed with Pin-to-Adjacent-Pin Short Testing Safety Considerations
• Designed with Open Pin Testing Safety Considerations
• These Devices are Pb-Free and Halogen Free/BFR Free