STEVAL-ISA010V1 Datasheet, PDF (2/4 Pages) STMicroelectronics – Ultra wide range dual output back converter demonstration board based on the VIPER16

Circuit schematic and PCB layout
1
Circuit schematic and PCB layout
STEVAL-ISA010V1
Figure 1. Schematic diagram
D1 1N4148
J1 ₂
85 - 500 VAC
D3 D4 R1 22 Ω L1 2.2 mH
1N4007 1N4007
C1
150 nF / X2
R2 750 kΩ _C3
R5
10 µF / 450 V
750 kΩ
C2
150 nF / X2
R6 750 kΩ
R8 750 kΩ
U1 VIPer16
7
8
Drain
Drain
4
FB
2
VDD
C9
10 µF
/ 35V
1
COMP LIM S
53
C4
10 µF /
450 V
C7
R7 N.A.
1.8 nF
R9 1 kΩ
R3
24 kΩ
R4
9.1 kΩ
D2
STTH108
C8
100 nF
L2 1 mH
D5
STTH108
D6
15 V
U2 L78L05
3 _{VIN VOUT} 1
GND
C5 ²
220 µF
/ 25 V
J2
1
2
3
C6 _Output
10 µF
/ 35 V
AM00361
Figure 2. PCB layout of the buck converter (top, bottom, bottom layout)
2/4
Doc ID 15674 Rev 1