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STMICROELECTRONICS L6566B Power Switch Controller
The L6566B is a high-performance primary switch controller IC designed for offline flyback converters, supporting fixed-frequency and quasi-resonant modes. It features adaptive UVLO, burst mode, a programmable oscillator for EMI mitigation, burst operation at light loads, and multiple protection functions including overvoltage, overcurrent, brownout, thermal shutdown, and latch modes. Suitable for high-end AC-DC adapters, LCD monitors, and digital equipment, it offers low quiescent current, high efficiency, and robust load regulation, ensuring reliable operation across varied load and line conditions for energy-efficient applications.
STMICROELECTRONICS L6566B Power Switch Controller Specifications:
- Operating voltage: up to 700 V (HVS), 8 V to 23 V (VCC)
- Maximum junction temperature: 150°C
- Thermal resistance junction to ambient: 120°C/W
- Oscillation frequency: 95–105 kHz, with frequency modulation capability
- Peak gate driver current: ±800 mA
- Gate driver voltage: 9.8–15 V (high), 0.75 V (low)
- Overvoltage protection threshold: 5.3–5.7 V
- Zero current detection: negative-going edge triggered, clamp at 50 mV
- Current sense comparator delay: 150–300 ns blanking time
- Line feedforward: Voltage feedforward range 0–3 V, adjustable via external divider
- Overcurrent trip level: set via sense resistor, Vcsx typically 0.45–0.55 V
- Line voltage feedforward: adjustable ratio, related to N_secondary / N_auxiliary
- Protection functions: latch and auto-restart options for OVP, UVLO, overload, short-circuit, overtemperature
- Package: SO16N, lead-free, ECOPACK® compliant
Buy the STMicroelectronics L6566B – Reliable Power Controller for Industrial Applications
Secure your supply chain with the L6566B power controller IC. Designed for high-performance flyback converters, it offers adaptive UVLO, multiple protection modes, and flexible operation modes. Its programmable oscillator ensures EMI compliance, while burst mode minimizes no-load losses. Ideal for high-end AC-DC adapters, LCDs, and digital equipment—order online today and unlock reliable, efficient power management with engineering-grade robustness.
Order your STMicroelectronics L6566B control IC today and empower your flyback converters with advanced protection, multi-mode operation, and high efficiency for industrial power supplies.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS L6566B?
You can click on the BUY or RFQ button to purchase L6566B from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part L6566B?
You can download the L6566B datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of L6566B?
STMICROELECTRONICS