NCP1031 データシートの表示（PDF） - ON Semiconductor

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NCP1031

Low Power PWM Controller with On−Chip Power Switch and Startup Circuits for 48V Telecom Systems

ON Semiconductor 

NCP1030, NCP1031

TYPICAL CHARACTERISTICS

4.1

VDRAIN = 48 V

3.9 TJ = 25°C

CT = 560 pF

3.7

3.5

3.3

3.1

2.9

2.7

2.5

10

11

12

13

14

15

16

VCC, SUPPLY VOLTAGE (V)

Figure 28. Operating Supply Current vs.

Supply Voltage

4.0

3.5

VCC = 12 V

CT = 560 pF

3.0

2.5

VUV = 3.0 V, VFB = 2.3 V

2.0

1.5

VUV = 3.0 V, VFB = 2.7 V

1.0

0.5

VUV = 2.0 V

0

−50 −25 0 25 50 75 100 125 150

TJ, JUNCTION TEMPERATURE (°C)

Figure 29. Supply Current vs. Junction

Temperature

10

TJ = 25 °C

9

8

7

6

5

NCP1031

4

3

NCP1030

2

200 300 400 500 600 700 800 900 1000

fOSC, OSCILLATOR FREQUENCY (kHz)

Figure 30. Operating Supply Current vs.

Oscillator Frequency

http://onsemi.com

11

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