Innovative power-efficient solutions for a green future
High performance resonant controller for advanced power supply designs
As power requirements continue to rise and form factors become ever thinner, modern power supplies are expected to deliver higher power in increasingly compact designs while meeting strict global energy‑efficiency standards and minimizing standby consumption.
Offering a balanced solution that combines high efficiency, high power density, and ultralow standby consumption, the STNRG599 high‑voltage resonant controller addresses these challenges in series resonant topologies, supporting both LLC and LCC configurations. Leveraging an innovative phase‑shift control method, the device delivers high efficiency over the full load range and robust, stable performance at light load. This enables designs to meet even the most demanding energy‑efficiency and standby‑power regulations.
STNRG599 high-voltage resonant controller
STNRG599 high-voltage resonant controller
Advanced double-ended controller designed specifically for resonant half-bridge topologies, with two variants available to provide flexible X-capacitor discharge implementation.
Designed for applications from 90W to 1kW
Key features
- High-voltage resonant controller with gate drivers embedded
- 800V HV and X-cap discharge embedded
- Phase-shift control method
- Up to 750 kHz switching frequency with adaptive dead time
- Advanced burst mode with very accurate entry/exit thresholds
- Wide input voltage/output power range
- Very low no-load consumption < 75 mW
- Compact SO-16 package
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EVLG599-250WLLC evaluation board
EVLG599-250WLLC evaluation board
400 V to 24 V / 10.5 A DC-DC resonant LLC converter for industrial applications, combining very high efficiency with a minimized footprint. It can operate as a standalone DC‑DC converter or be integrated into a more complex architecture featuring a front‑end preconditioner, such as a PFC stage.