NCP1028LEDGEVB ON Semiconductor, NCP1028LEDGEVB Datasheet - Page 2

• Manufacturer Part Number: NCP1028LEDGEVB
• Description: EVAL BOARD FOR NCP1028LEDG
• Manufacturer: ON Semiconductor

Specifications of NCP1028LEDGEVB

• Design Resources: NCP1028LEDGEVB BOM CP1028LEDGEVB Gerber Files NCP1028LED EVB Schematic
• Current - Output / Channel: 720mA
• Outputs And Type: 1, Isolated
• Voltage - Output: 18V
• Voltage - Input: 90 ~ 265VAC
• Utilized Ic / Part: NCP1028
• Core Chip: NCP1028
• Topology: Flyback
• No. Of Outputs: 1
• Output Current: 720mA
• Output Voltage: 18V
• Development Tool Type: Hardware - Eval/Demo Board
• Leaded Process Compatible: Yes
• Mcu Supported Families: NCP1028
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1028LEDG
• Other names: NCP1028LEDGEVBOS

Test Procedure:
End of Test.
Vadj
AC Source
1. Switch the electronic load on, set to constant resistance mode and the load adjust to zero
2. With the AC source OFF, set the current limit on the AC source to 500 mA and the
3. Turn on the AC source and the power supply demo board output voltage should be the
4. Adjust the electronic load from no load slowly up to the rated output current. The output
5. Reduce the AC input to 90 Vac and make sure the conditions of test 4 above still hold.
6. Return the input to 115 Vac and continue to increase the load slowly and the current
7. Set the electronic load to back to zero and the output voltage should return to the rated
8. Check the AC input power. It should be below 300 mW.
9. Adjust the AC input to 230 Vac and repeat tests (3) through (7).
10. Set the electronic load to zero and switch the AC source off.
load; switch all of the digital meters on (assuming they are wired properly for voltage and
current sensing); turn the oscilloscope on with sensing in AC mode and 200 mV per
division vertical and a sweep rate of 5 uS per division. Connect the scope probe to the
demo board’s output terminals.
output voltage to 115 Vac.
rated output voltage of 18 +1 volt/- 0.5 volts on the DVM.
voltage should remain within +/- 10% of the rated value. The output ripple on the
oscilloscope should be less than 500 mV peak-to-peak.
should remain constant within +/- 10% of the rated output current level as voltage
collapses (constant current output.) The 1028 should be able to go all the way down to a
couple of volts or less under heavy overload.
level.
(Required if not
in AC source)
Iadj
WATTS
115 Vac
AC out
AC in
Board Under Test
DC out
-
+
amps
DVM
volts
DVM
-
-
+
+
O'scope
Electronic
Load
-
Adj