NCP1605FORWGEVB ON Semiconductor, NCP1605FORWGEVB Datasheet - Page 29

• Manufacturer Part Number: NCP1605FORWGEVB
• Description: EVAL BOARD FOR NCP1605FORWG
• Manufacturer: ON Semiconductor

Specifications of NCP1605FORWGEVB

• Design Resources: NCP1605FORWGEVB BOM NCP1605FORWGEVB Gerber Files NCP1605 EVB Schematic
• Main Purpose: AC/DC, Primary and Secondary Side with PFC
• Outputs And Type: 1, Isolated
• Voltage - Output: 19V
• Current - Output: 8A
• Voltage - Input: 90 ~ 265VAC
• Regulator Topology: Forward Converter
• Frequency - Switching: 133kHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1217, NCP1605
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1605FORWG
• Other names: NCP1605FORWGEVBOS

Remarks:
clamp level (3.7 V) depending of the load and of the system
time constants. In particular, if the circuit starts operation
in light load and if the bulk capacitor is not too large, the
output voltage V
while V
The V
V
V
V
Flag1
Circuit State
pfcOK
Drive Output
CC
OUT
CONTROL
CONTROL
CONTROL
OUT
keeps below its upper limit.
signal does not necessarily reach its
generally exceeds the regulation level
V
OFF
CC
1 V
ON
Figure 70. Startup Phase in Normal Conditions
V
CONTROL
http://onsemi.com
MAX = 3.7 V
29
twice the line frequency). This ripple is also present in the
V
regulation low bandwidth. Like that of V
not represented in Figure 70, for the sake of the clarity.
CONTROL
The output voltage exhibits a 100 or 120 Hz ripple (at
These re−activations of “Flag1” result from V
100 or 120 Hz ripple (not represented here for the
sake of clarity)
V
CC
OFF
voltage even if it is attenuated due to the
V
OUT
Regulation Level
V
CC
STUP
OUT
OUT
, this ripple is