STMicroelectronics EVL6563H-100W

Overview

EVL6563H-100W from STMicroelectronics is a 100 W transition-mode (TM) power factor correction (PFC) demonstration board built around the L6563H PFC controller IC, implementing a wide-input (90–265 V_AC) boost pre-regulator with regulated 400 V output, THD < 3%, PF > 0.98, and 93% peak efficiency - designed for compliance with EN61000-3-2 Class D and JEITA-MITI Class D standards in flat-panel displays, LED ballasts, and AC/DC adapters.

For engineers reviewing the EVL6563H-100W datasheet, EVL6563H-100W pinout, EVL6563H-100W application, or EVL6563H-100W equivalent, this page delivers verified board-level specifications, functional architecture, EMI pre-compliance results, startup/brownout behavior, and interoperability with cascaded DC-DC controllers via PFC_OK and RUN pins.

Technical Context

The EVL6563H-100W implements a current-mode TM PFC stage using a conventional boost topology with STF7NM50N MOSFET (TO-220FP), SRW2620PQ-X22V102 inductor (0.52 mH), and STTH2L06 ultrafast diode. It leverages the L6563H's internal high-voltage startup (700 V tolerant HVS pin), ZCD-based demagnetization sensing, voltage feed-forward (VFF), and dynamic OVP via PFC_OK pin to achieve stable 400 V regulation across 90–265 V_AC input and 0–100 W load.

Key control features include non-latched brownout protection (0.8 V threshold on RUN pin), THD optimization via MULT pin scaling, tracking boost option (TBO), and open-loop fault latching triggered by simultaneous PFC_OK > 2.5 V and INV < 1.66 V - enabling robust operation in mains-dip/surge conditions and seamless handoff to downstream PWM controllers.

Key Specifications

Availability

EVL6563H-100W is available at Aetrix Electronics and suitable for flat-panel display power supplies, LED lighting ballasts, and universal-input AC/DC adapters requiring stable component supply, regulatory pre-compliance validation, and reference-grade PFC implementation.

Supply support for EVL6563H-100W includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer applications.

The EVL6563H-100W belongs to ST's evaluation board portfolio for PFC controllers, developed specifically to accelerate design-in of transition-mode PFC stages meeting stringent harmonic and efficiency requirements in compact, cost-sensitive power supplies.

FAQ

What is the primary function of the EVL6563H-100W demonstration board?

The EVL6563H-100W is a fully assembled, tested reference design that demonstrates the L6563H transition-mode PFC controller in a 100 W boost pre-regulator. Its core function is to correct input current waveform distortion, achieving >0.98 power factor and <3% THD while delivering a tightly regulated 400 V DC output from 90–265 V_AC input - enabling compliance with EN61000-3-2 and JEITA-MITI standards.

How does the board interface with a downstream DC-DC converter?

The board interfaces via the PFC_OK pin (J3 pin #5), which signals valid output voltage (2.4–2.5 V threshold) to enable the downstream PWM controller, and the RUN pin, which supports brownout shutdown and restart. Optional latched or non-latched control is implemented using J3 pins PWM_LATCH and PWM_STOP, allowing coordinated start-up, fault shutdown, and light-load management between PFC and secondary-stage controllers.

What are the key protection features implemented on this board?

Key protections include non-latched brownout (RUN pin < 0.8 V disables operation), dynamic overvoltage protection (PFC_OK > 2.5 V halts switching; resumes at < 2.4 V), feedback failure latching (simultaneous PFC_OK > 2.5 V and INV < 1.66 V forces Vcc cycle reset), and open-loop fault detection. Startup is validated down to 80 V_AC, and hold-up time is confirmed at 10 ms to 300 V.

Can the EVL6563H-100W be used for EMI pre-compliance testing?

Yes - the board includes a complete input EMI filter (20 mH common-mode choke + two 470 nF X2 capacitors) and has undergone conducted emissions (CE) measurements per CISPR 22/EN55022. Peak CE data is documented at both 100 V_AC and 230 V_AC full-load conditions, making it suitable for pre-compliance validation prior to formal EMC lab testing.