NCP1028LEDGEVB ON Semiconductor, NCP1028LEDGEVB Datasheet - Page 14

• 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

testifying for a badly coupled power secondary and
primary auxiliary windings. Some situations exist where an
output short-circuit make the auxiliary winding collapse
In Figure 26, one can see that the V
Figure 27. The auxiliary winding collapses in presence of a short-circuit. Pulses are immediately stopped
as V
CC
CC
crosses the minimum operating voltage, VCC
is still alive,
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NCP1028
14
before the timer completion. In this particular case, the
Undervoltage Lock Out (UVLO) circuitry has the priority
and safely cuts off all driving pulses. Figure 27 describes
this variation.
(min)
.