Features
■ Input voltage range:
– 185 to 265 Vac
– 85 to 185 Vac (with voltage double)
■ Input frequency range 50/60 Hz
■ Output voltage 24 V ± 2%
■ Output power 150 W (240 W peak)
■ Compliant with standards:
– EN60950 for safety
– EN55014 for EMI
■ RoHS compliant
Description
STEVAL-ISA018V1
150 W (240 W peak) resonant SMPS
demonstration board based on the L6599
Data brief
STEVAL-ISA018V1
The STEVAL-ISA018V1 demonstration board
presents a high efficiency solution for industrial
switched-mode pow er su pplies (SMPS) up to 1 50
W continuous output power, with peak power of
240 W . The design tak es adv antage of a resonan t
approach to minimize switching losses, resulting
in efficiency higher than 90%.
The design is based on a half-bridge topolog y
operated in a resonant manner by means of a
resonant LC tank, driven by a dedicated L6599
high-voltage resonant controller.
The board provides one regulated output,
V
= 24 V with IO = 6 A and overload capability up
O
to I
= 10 A.
O
Output voltage and current are controlled by a
secondary-side IC (TSM1011), which provides
square output regulation, while the overload is
managed by thermal protection (PTC) on the
output rectifiers.
April 2010 Doc ID 17434 Rev 1 1/4
For further information contact your local STMicroelectronics sales office .
www.st.com
4
Schematic diagram STEVAL-ISA018V1
1 Schematic diagram
Figure 1. Circuit schematic
4(%2-!,02/4%#4)/.
2/4 Doc ID 17434 Rev 1
STEVAL-ISA018V1 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
27-Apr-2010 1 Initial release.
Doc ID 17434 Rev 1 3/4
STEVAL-ISA018V1
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