STEVAL-ISA054V1 STMicroelectronics, STEVAL-ISA054V1 Datasheet - Page 15

• Manufacturer Part Number: STEVAL-ISA054V1
• Description: BOARD DEMO STW9N150 100W 3PHASE
• Manufacturer: STMicroelectronics
• Type: MOSFET & Power Driverr

Specifications of STEVAL-ISA054V1

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 2, Isolated
• Power - Output: 100W
• Voltage - Output: 24V, 3.3V or 5V
• Current - Output: 4A, 1A
• Voltage - Input: 180 ~ 265VAC & 320 ~ 480VAC
• Regulator Topology: Flyback
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L5970, STW9N150, UC3844B
• Input Voltage: 180 V to 265 V, 400 V
• Output Voltage: 3.3 V, 5 V, 24 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STW9N150
• Kit Application Type: Power Management
• Application Sub Type: Auxiliary Power Supply
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STW9N150
• Other names: 497-8849

UM0674
5.2
Figure 8.
Output side waveforms
Figure below shows the output voltage ripple for a 24 V output at full load. The output
voltage ripple has been minimized by choosing output capacitors with a very low ESR and
high ripple current. The spikes have a peak-to-peak amplitude smaller than 510 mV. An
additional LC filter has been introduced after the first output capacitor bank in order to
reduce the voltage ripple and large voltage spike.
Figure 9.
DC bus voltage at 180-265 Vac
output current
24 V output voltage spikes at full load
Doc ID 15343 Rev 1
rms
input AC voltage range with 0.4 A fixed
Primary and output waveforms
AM01989v1
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