Data Brief
For further information contact your local STMicroelectronics sales office.
December 2007 Rev 1 1/4
4
STEVAL-ISA030V1
6 W 3-phase SMPS for metering evaluation board
based on ESBT®
Features
■Input voltage: 150 VDC - 850 VDC
■Output power: 6 W
■Output voltage: CH1: 14 V / 430 mA
■Switching frequency: >30 kHz
■Efficiency: >80%
■Feedback: primary regulation
Description
The STEVAL-ISA030V1 evaluation board is a
complete solution for a 5 W single output SMPS,
the type widely used as a power supply in
metering applications. The design is based
primarily on ST’s L6565 PWM driver and the
STC04IE170HP as the main switch. The design
method can also be applied to an SMPS designed
for other applications which work on a three-
phase mains, and can easily be upgraded for
higher output power.
STEVAL-ISA030V1
www.st.com
Board schematic STEVAL-ISA030V1
2/4
1 Board schematic
Figure 1. Schematic
U1
L6565
Vff
3
Vcc 8
COMP
2
CS
4ZCD 5
GND 6
GD 7
INV
1
R24
2.2K/ 1206
R2
100K/ 1206
F1
TR5FUSE
1 2
M600X
L1
R1
100K /1206
R18
22K
R13
22/ 1206
R6
1/ 1/8W
R8
47k/ 1/8W
R11
1.5K/ 1/8W
R15
1. 2K / 1/8W
R17
4. 7K / 1/8W
R14
11K/ 1/8W
R21
2.4K/ 1/8W
C8
3.3nF
C710nF
D3
STPS3L60U
A C
+
C1
330uF/25V
D6
LL4148AC
D7
LL4148
AC
CSM 2010-104
T1
77
2
2
1
1
3
3
4
4
66
R23
4. 7/ 1/4W
ISO1
H11A817
12
43
Q1
STC04IE170HP
4
13
2
14V @ 0.43A
D1 STTH112U
A C
D2 STTH112U
AC
U2
TL431_ARC
A C
R
D4 STTH112U
A C
D5
STTH112U
AC
J1
Phoenix 3 pin
1
2
3J2
Phoenix 2 pin
1
2
27T 9T
35T
48T
R12
10/ 1206
+
C2
33uF/450V
+
C3
33uF/450V
+
C4
33uF/450V
C6
10nF
C5
.0022uF
Y1 cap
R9
100K/ 1206
R10
100K/1206
C9
4.7nF
R22 330
R3
100K/ 1206
R7
100K/ 1206
+
C10
47uF/25V
+
C11
22uF/25V
R5
1M
R4
1M
STEVAL-ISA030V1 Revision history
3/4
2 Revision history
Table 1. Document revision history
Date Revision Changes
06-Dec-2007 1 Initial release.
STEVAL-ISA030V1
4/4
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