19 V - 90 W adapter with PFC for laptop computers based on
L6563H and L6599A
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: < 0.3 W at 230
VAC
• 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
Description
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).
December 2013 DocID025564 Rev 1 1/4
For further information contact your local STMicroelectronics sales
office
www.st.com
