TND307 データシートの表示（PDF） - ON Semiconductor
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TND307 Datasheet PDF : 8 Pages
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TND307
30 k
0.05 mF
0.1 mF
47 k
1
3
Vin
AC Comp
4 Ref Filter
5 AC Input
6 FB/SD
7 Loop Comp
8 Pcomp
9 Pmax
2 0.1 mF
Vref
14 V
1 mF
Output 16
IS– 12
300
0 to –5 V
Iavg
Iavg fltr
10
11
1 nF
Ramp
GND
15
CT Comp
14 13
15 k
10
10 k 470 pF
10 k
1.5 V
3.3 k
1
2
3
Vin
AC Comp
4 Ref Filter
5 AC Input
6 FB/SD
7 Loop Comp
8 Pcomp
9 Pmax
Vref
650
Output 16
IS– 12
Iavg
10
11
Iavg fltr
Ramp
GND
CT Comp
15
14 13
470 pF
47 k
0.1 mF 14 V
1 mF
Figure 7. Current Sense Amplifier Gain
Re: NCP1650/D data sheet, Figure 9
Adjust voltage at pin 12, and read values at pins 10 & 11.
Figure 8. Vref, Transient Response
Re: NCP1650/D data sheet, Figure 11
1
2 0.1 mF
14 V
1 mF
1
2 0.1 mF
14 V
1 mF
0–5 V
V
9
Vin
Pmax
6 FB/SD
5 AC Input
Vref
Output 16
IS– 12
0–5 V
V
6
Vin
FB/SD
9 Pmax
5 AC Input
Vref
Output 16
IS– 12
V
1k
1.5 V
7 Loop Comp
3 AC Comp
4 Ref Filter
Iavg
10
11
Iavg fltr
V
1k
1.5 V
8 Pcomp
3 AC Comp
4 Ref Filter
Iavg
10
11
Iavg fltr
8 Pcomp
Ramp
7 Loop Comp Ramp
GND
CT Comp
GND
CT Comp
3.3 k
15
14 13
470 pF
47 k
3.3 k
15
14 13
470 pF
47 k
Figure 9. Voltage Error Amplifier Gain
Re: NCP1650/D data sheet, Figures 12 & 13
Figure 10. Power Error Amplifier Gain
Re: NCP1650/D data sheet, Figures 14 & 15
30 k
33 k
10 k
1
2 0.1 mF
3
Vin
AC Comp
4 Ref Filter
5 AC Input
6 FB/SD
7 Loop Comp
8 Pcomp
9 Pmax
Vref
Output 16
IS– 12
Iavg
10
11
Iavg fltr
Ramp
GND
CT Comp
15 14
CT
13
47 k
14 V
1 mF
Freq Cntr
Figure 11. Frequency versus CT
Re: NCP1650/D data sheet, Figure 16
30 k
3.3 k
10 k
1
2 0.1 mF
3
Vin
AC Comp
4 Ref Filter
5 AC Input
6 FB/SD
7 Loop Comp
8 Pcomp
9 Pmax
Vref
Output 16
IS– 12
Iavg
Iavg fltr
10
11
Ramp
GND
CT Comp
15 14 13
470 pF
14 V
1 mF
Figure 12. Ramp Peak versus Temperature
Re: NCP1650/D data sheet, Figure 17
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