EVALSTSR30-60W STMicroelectronics, EVALSTSR30-60W Datasheet - Page 13

• Manufacturer Part Number: EVALSTSR30-60W
• Description: BOARD EVAL USING L6668 & STSR30
• Manufacturer: STMicroelectronics
• Type: AC/DC Switching Convertersr

Specifications of EVALSTSR30-60W

• Mfg Application Notes: EVALSTSR30-60W AppNote
• Main Purpose: AC/DC, Primary and Secondary Side
• Outputs And Type: 1, Isolated
• Power - Output: 60W
• Voltage - Output: 12V
• Current - Output: 5A
• Voltage - Input: 88 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 68kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6668, STSR30
• Input Voltage: 88 V to 264 V
• Output Voltage: 12 V
• Dimensions: 120 mm x 75 mm
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: L6668 And STSR30
• Kit Application Type: Power Management - Voltage Regulator
• Application Sub Type: SMPS
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6668, STSR30
• Other names: 497-6389; EVALSTSR30-60W

Functional check
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3.1
3.2
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Figure 11. Start-up at 88V
CH2: SS pin
CH3: Output voltage
Functional check
Start-up behavior at full load
Figure 11
maximum mains voltages. The rising time is nearly constant over all input voltage range.
The output voltage reaches its regulated value without any overshoot.
The soft-start function is integrated in the L6668 controller and can be programmed by
changing the value of C10.
Wake-up time
The wake-up time is the time needed for the output voltage to reach its nominal value from
the moment the adapter is plugged-in. Thanks to the internal high voltage start-up current
generator of the L6668, the wake-up time of this demo board is quite fast (approx. 900ms)
and, above all, independent of the mains voltage value.
When the IC starts, the generator is turned off, saving power in every working condition.
and
Figure 12
AC
- 60Hz
show the start-up phase at full output load at minimum and
Figure 12. Start-up at 264V
CH2: SS pin
CH3: Output voltage
AC
- 50Hz
AN2432