
DocID025509 Rev 1
19/30
UM1694
STEVAL-ILH007V1 schematic
30
Appendix A
STEVAL-ILH007V1 schematic
Figure 16. Auxiliary power supply scheme
D8
SM6T220A
D14
TMMBA
T46
R45 8.2k
C20
100pF
L3
4.7uH
R41 47k
D9
STPS2150
L4
TRANSF MAGNETICA
1
5
4
3
10
8 7
6
R46 24k
C19
470nF 50V
C14
470uF 25V
+
R98 22
U4 AL
TA
IR04-900
COMP
7
DRAIN4
16
IREF
5
FB
6
VDD
3
GND
4
SRC1
1
SRC2
2
DRAIN3
15
DRAIN2
14
DRAIN1
13
C16 470nF 50V
C7 470uF 25V
+
R44 2.7
R34 33k
C8
470nF 50V
D1
1
STTH1L06A
U5
LD29080S33R
VIN
1
GND
2
VOUT
3
C25
1nF
C15 10uF 25V
+
C9 470uF 25V
+
R40 47k
D13
STPS1L30A
C26
4.7nF
R42 2.7
C17
470nF 50V
C53
1nF 500VDC
R36 47k
C18 10uF 25V
+
VOUT3.3VOUT3.3
4.5V
3.3V
+425V
12V