STEVAL-ISA021V1 STMicroelectronics, STEVAL-ISA021V1 Datasheet - Page 13

• Manufacturer Part Number: STEVAL-ISA021V1
• Description: BOARD REF VIPER22A SGL OUTPUT
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of STEVAL-ISA021V1

• Design Resources: STEVAL-ISA021V1 Gerber Files STEVAL-ISA021V1 Schematic STEVAL-ISA021V1 Bill of Material
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 10W
• Voltage - Output: 12V
• Current - Output: 840mA
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 60kHz
• Board Type: Fully Populated
• Utilized Ic / Part: VIPer22A
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Other names: 497-5219

AN2544
1.9
Note:
Performance
Regulation for the VIPer22A-E and VIPer12A-E can be seen below. Keep in mind that the
buck topology will peak charge at zero load. DZ1 will clamp the voltage to 3 - 4 V above the
output. Load regulation is taken from 0.03 A to 0.35 A.
The following measurements were taken on the appropriate version of the boards.
Discrepancy of measurements can be present, which is to be expected due to the 5%
tolerance of the Zener and equipment used for the measurements. The measurements
shown are at room temperature. If higher operating temperatures are used, current loads
must be adjusted accordingly.
Table 5.
Table 6.
+/- % load reg (.03 to max)
+/- % load reg (.03 to max)
Short circuit
Line Reg.
Line reg.
264 V
264 V
DELTA
DELTA
90 V
90 V
90 V
Ripple
90 V
90 V
90 V
MAX
MAX
MIN
MIN
Vin
Vin
VIPer22ADIP-E, 12 V at 350 mA
VIPer12ADIP-E, 12 V at 200 mA
Blue Angel at no-load at 115 V
ac
ac
ac
ac
ac
ac
ac
ac
mv pp at 120 V
VIPer12 buck 12 V / 200 mA #1
12 V load
12 V load
VIPer22 buck 12 V / 350 mA
3.6%
3.8%
0.03
0.03
0.35
0.35
0.2
0.2
0
0
ac
ac
in W
15.81
12.58
12.21
12.58
11.85
11.85
6.0%
2.9%
12 V
12 V
15.6
12.7
12.1
12.7
0.85
11.7
11.7
0.88
ok
0.495
W in
W in
0.15
3.06
3.25
0.12
0.45
5.64
6.12
0.12
52
Circuit operation
Efficiency
Efficiency
77.5%
74.5%
72.6%
69.8%
13/17