STEVAL-ISA035V1 STMicroelectronics, STEVAL-ISA035V1 Datasheet - Page 10

• Manufacturer Part Number: STEVAL-ISA035V1
• Description: BOARD EVAL BASED ON VIPER22A
• Manufacturer: STMicroelectronics
• Series: VIPER™r
• Type: Other Power Managementr

Specifications of STEVAL-ISA035V1

• Mfg Application Notes: VIPer12/22A-E AppNote
• Main Purpose: AC/DC, Non-Isolated
• Outputs And Type: 1, Non-Isolated
• Power - Output: 4.2W
• Voltage - Output: 12V
• Current - Output: 350mA
• Voltage - Input: 85 ~ 264VAC
• Regulator Topology: Buck
• Frequency - Switching: 60kHz
• Board Type: Fully Populated
• Utilized Ic / Part: VIPer22A
• Input Voltage: 85 V to 264 V
• Output Voltage: 12 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: VIPER22A-E
• Other names: 497-8215

Circuit operation
Table 3.
Table 4.
10/17
Item
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Omit
Omit
Add
Qty
1
2
1
1
1
1
1
1
3
1
2
1
1
1
1
1
Bill of material for VIPer22A-E Buck 12 V at 350 mA
Bill of material for VIPer22A-E Buck 16 V at 350 mA
The above board can be modified to any voltage output from 10 V to 15 V by changing DZ.
To modify the board to 16 or higher, D6 and C4 can be omitted and the jumper wire can be
installed. For 16 V operation or higher, V
having the current leak through the Zener and Vf pin path. The output voltage can be
changed by changing DZ from 16 V Zener to a higher value matching the output voltage. If
less current is required, the board can be changed with a VIPer12A-E dip which is
pin compatible with the VIPer22ADIP-E.
Also one of the input capacitors, C2, can be reduced to 4.7 µF. Various data and waveforms
from evaluation boards can be seen in the following pages.
The V
capacitor.
D1,D6,D8
C1,C2
J1, J2
1
1
1
Ref.
DZ1
C3
C4
C6
C7
DZ
D5
R0
R1
U1
Cx
L0
L1
dd
cap has to be sized according to the output load and the size of the output
Jumper
VIPer22ADIP-E
D8
C4
STTH1R06A
S1MDICT
0.47 µF
470 µH
4.7 µF
0.022
10 µF
47 µF
1 mH
0.1 µ
2 pin
12 V
16 V
10 Ω
Part
1 kΩ
Wire jumper
S1MDICT
0.47 µF
For 16 V or higher operation.
140 mA
400 mA
400 V
zener
zener
50 V
25 V
25 V
50 V
1 kV
V/W
1 W
25 V
dd
SM GP Diode 1 kV 1 A
and Vf can share the same source without
600 V 1 A Ultrafast
105 C Low ESR
Description
X7R +/-10%
X7R +/-10%
X7R +/-10%
X7R +/-15%
wire wound
105 C
SM GP Diode
X7R +/-10%
5%
24 AWG
1 kV 1A
GRM55DR73A104KW011
EKMG401ELL100MJ20S
TDK C2012X7R1E474K
TDK C3216X7R1E475K
TDK C2012X7R1E474K
JW Miller RL895-102K
Mouser 651-1751099
Compostar Q3277 or
SM 1206 CERAMIC
STMicroelectronics
STMicroelectronics
JW Miller 5300-33
GP SM Ceramic
BZT5212FDICT
BZT5216FDICT
ALSR1J-10
Low ESR
Murata
S1MD
S1MD
CAT#
UCC
pin-for-
AN2544