May 2015

DocID026808 Rev 2

1/4

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-ISA132V1

300 W peak power (170 W continuous power) LLC resonant

converter based on L6699, STB13N60M2 and STPS20H100CG

Data brief

Features



Input mains range: 190 to 264 VAC -

frequency 50 Hz



Output voltage: 24 V 5%



No-load consumption: < 0.6 W



Efficiency @ 230 VAC > 92%



EMI: within EN55022 Class-B limits

conducted pre-compliance



Safety: meets EN60950-1



Dimensions: 90 x 90 mm, 50 mm component

maximum height



Safe startup procedure to avoid hard

switching



Hard switching prevention in overload

condition and low load condition



Burst mode in low load condition with

smooth restart to prevent audible noise



Evaluation board can deliver more than 300

W peak power for a limited time by a thermal

protection NTC positioned near output

diodes



Continuous power at 30 °C ambient

temperature:170 W



The power MOSFETs and diodes are both in

D²PAK packages



RoHS compliant

Description

The STEVAL-ISA132V1 evaluation board

implements a converter capable of delivering 170

power for a limited time. The architecture of the

board is based on a single-stage LLC resonant

converter without PFC using the new L6699

resonant controller. The L6699 integrates some

very innovative functions such as self-adjusting

adaptive dead-time, anti-capacitive mode

protection and proprietary “safe-start” procedure

preventing hard switching at startup. High

efficiency at full load (> 92%) and no load (< 0.6

W) is obtained thanks to the STB13N60M2 (600

V, 0.35 W typ., 11 A) MDmesh M2 power

MOSFET in the half-bridge, and the

A) Schottky diode for secondary rectification.