NCP1377D1R2G ON Semiconductor, NCP1377D1R2G Datasheet - Page 13

• Manufacturer Part Number: NCP1377D1R2G
• Description: IC CTRLR PWM CM OVP UVLO 8SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1377D1R2G

• Output Isolation: Isolated
• Frequency Range: 100kHz
• Voltage - Input: 8.2 ~ 18 V
• Operating Temperature: 0°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width) 7 leads
• Number Of Outputs: 1
• Output Voltage: 18 V
• Output Current: 500 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 100 KHz
• Maximum Operating Temperature: + 150 C
• Fall Time: 20 ns
• Rise Time: 40 ns
• Synchronous Pin: No
• Topology: Flyback
• Pwm Type: Current Mode PWM Controller
• Number Of Pwm Outputs: 1
• On/off Pin: No
• Adjustable Output: No
• Switching Freq: 100KHz
• Operating Supply Voltage (max): 16V
• Mounting: Surface Mount
• Pin Count: 7
• Package Type: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NCP1377D1R2G; NCP1377D1R2GOSTR

Figure 29. This plot gathers waveforms captured at three different operating points:
1
2
the second valley.
3
further expand the burst as Pout goes low.
Figure 30. This picture explains how the 200 mA internal offset
st
nd
rd
Upper Plot: Free run, valley switching operation, Pout = 26 W.
Lowest Plot: The skip slices the second valley pattern and will
Middle Plot: Min Toff clamps the switching frequency and selects
Current Sense Pin (200 mV/pin)
current creates the skip cycle level.
Vrsense (200 mV/div)
200 mA x Rskip
http://onsemi.com
13
Vgate (5 V/div)