TND307 Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
TND307 Datasheet PDF : 8 Pages
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TND307
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
7 Loop Comp
1 k 3 AC Comp
Iavg
10
11
V
1.5 V 4 Ref Filter
Iavg fltr
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 15. Voltage Error Amplifier Gain
Re: NCP1650/D data sheet, Figure 21
Energize unit by applying 14 volt supply. Using a
precision supply with resolution of 1 mV or less, adjust the
voltage at pin 6 for zero current out of pin 7. The voltage at
pin 6 will be the effective 4.0 V reference voltage.
Figure 16. Power Error Amplifier Gain
Re: NCP1650/D data sheet, Figure 22
Energize unit by applying 14 volt supply. Using a
precision supply with resolution of 1 mV or less, adjust the
voltage at pin 9 for zero current out of pin 8. The voltage at
pin 9 will be the effective 2.5 V reference voltage.
1.5 V
3.3 k
V
A
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
CT
13
47 k
VCC
1 mF
1 nF
V
V
1
2 0.1 mF
3.3 k
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
CT
13
47 k
14 V
1 mF
Figure 17. Bias Current versus VCC
Re: NCP1650/D data sheet, Figure 23
Figure 18. Vref versus VCC in Shutdown Mode
Re: NCP1650/D data sheet, Figure 24
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