NCP1351BPG ON Semiconductor, NCP1351BPG Datasheet - Page 22

• Manufacturer Part Number: NCP1351BPG
• Description: IC CTRLR PWM PROG CM OTP 8DIP
• Manufacturer: ON Semiconductor

Specifications of NCP1351BPG

• Output Isolation: Isolated
• Frequency Range: Adjusting
• Voltage - Input: 9.5 ~ 28 V
• Operating Temperature: -25°C ~ 125°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Number Of Outputs: 1
• Output Voltage: - 0.3 V to + 20 V
• Output Current: 400 mA
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Fall Time: 100 ns
• Rise Time: 90 ns
• Synchronous Pin: No
• Topology: Flyback
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ripple operation at no-load. This is what confirms
Figure 29.
Another benefit of the variable frequency lies in the low
Figure 31. Transient Step, Low Line
50 mV/div
Figure 29. No-Load Output Ripple
200 V/div
V
V
out
ds
(V
in
= 230 Vac)
1.0 mV/div
V
out
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NCP1351
22
Finally, the power supply was tested for its transient
response, from 100 mA to 3 A, high and low line, with a
slew-rate of 1 A/ms (Figure 31). Results appear in
Figures 31 and 32 and confirm the stability of the board.
50 mV/div
Figure 32. Transient Step, High Line
V
out
Figure 30. Same Conditions,
200 V/div
V
ds
P
out
= 5 W
1.0 mV/div
V
out