The NCP13992 is a high performance current mode controller for
half bridge resonant converters. This controller implements 600 V
gate drivers, simplifying layout and reducing external component
count. The builtïin BrownïOut input function eases implementation
of the controller in all applications. In applications where a PFC front
stage is needed, the NCP13992 features a dedicated output to drive the
PFC controller. This feature together with quiet skip mode technique
further improves light load efficiency of the whole application. The
NCP13992 provides a suite of protection features allowing safe
operation in any application. This includes: overload protection,
overïcurrent protection to prevent hard switching cycles, brownïout
detection, open optocoupler detection, automatic deadïtime adjust,
overïvoltage (OVP) and overïtemperature (OTP) protections.

Features
• HighïFrequency Operation from 20 kHz up to 750 kHz
• Current Mode Control Scheme
• Automatic Deadïtime with Maximum Deadïtime Clamp
• Dedicated Startup Sequence for Fast Resonant Tank Stabilization
• Light Load Operation Mode for Improved Efficiency
• Quiet Skip Operation Mode for Minimize Transformer Acoustic Noise
• Latched or AutoïRecovery Overload Protection
• Latched or AutoïRecovery Output Short Circuit Protection
• Latched Input for Severe Fault Conditions, e.g. OVP or OTP
• Out of Resonance Switching Protection
• Open Feedback Loop Protection
• Precise Brownïout Protection
• PFC Stage Operation Control According to Load Conditions
• Startup Current Source with Extremely Low Leakage Current
• Dynamic SelfïSupply (DSS) Operation in Offïmode or Fault Modes
• Pin to Adjacent Pin / Open Pin Fail Safe
• These are PbïFree Devices

Typical Applications
• Adapters and Offline Battery Chargers
• Flat Panel Display Power Converters
• Computing Power Supplies
• Industrial and Medical Power Sources