Description

The L6599DTR is a power supply controller and monitor electronic component designed for the resonant half-bridge topology with 50% complementary duty cycle. It offers efficient output voltage regulation by modulating the operating frequency. This device guarantees soft-switching and enables high-frequency operation. It is ideal for applications such as LCD & PDP TV, desktop PC, entry-level servers, telecom SMPS, AC-DC adapter, and open-frame SMPS.

Specifications and features

• 50% duty cycle, variable frequency control of the resonant half-bridge
• High-accuracy oscillator
• Up to 500kHz operating frequency
• Two-level OCP: frequency-shift and latched shutdown
• Interface with PFC controller
• Latched disable input
• Burst-mode operation at light load
• Input for power-ON/OFF sequencing or brownout protection
• Non-linear soft-start for monotonic output voltage rise
• 600V-rail compatible high-side gate driver with integrated bootstrap diode and high dV/dt immunity
• -300/800mA high-side and low-side gate drivers with UVLO pull-down
• DIP-16, SO-16N packages

Application Scenarios

The L6599DTR is ideal for power supply controllers and monitors for various applications including resonant half-bridge, LCD & PDP TV, desktop PC, entry-level servers, telecom SMPS, AC-DC adapter, and open-frame SMPS.

Comparison

• Variable frequency control of the resonant half-bridge for efficient output voltage regulation
• Latched disable input and input for power-ON/OFF sequencing or brownout protection
• High-accuracy oscillator and high dV/dt immunity for better performance

• This model has a limited package option and is not suitable for all applications.