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L6563H and L6599A based 19V-90W adapter with PFC for portable computer applications

STEVAL-ISA148V1

Overview

The STEVAL-ISA148V1 is a 90 W, wide range mains, power factor corrected, AC-DC adapter system evaluation board. Its electrical specification is tailored on a typical Hi-end portable computer power adapter.

The architecture is based on a two-stage approach, a front-end PFC pre-regulator based on L6563H TM PFC controller and a downstream LLC resonant half-bridge converter using new L6599A resonant controller. Thanks to the chipset used, the main characteristics of this design are very high efficiency compliance with ENERGY STAR® Eligibility Criteria (EPA rev. 2.0 EPS) and very low input consumption at no-load (< 0.3 W).

Main features

Universal input mains range: 90 - 264 VAC - frequency 45 - 65 Hz
Output voltage: 19 V at 4.75 A continuous operation
Mains harmonics: ACC. to EN61000-3-2 Class-D or JEITA-MITI Class-D
Standby mains consumption:
Efficiency at nominal load: Better than 90% at full load
EMI: In accordance with EN55022-Class-B
Safety: In accordance with EN60950
Dimensions: 65 x 151 mm, 25 mm component maximum height
PCB: double side, 70 µm, FR-4, mixed PTH/SMT
RoHS compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-08-08 01:16:40

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