Datasheet NCP431 (ON Semiconductor) - 7
| Manufacturer | ON Semiconductor |
| Description | Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator |
| Pages / Page | 22 / 7 — NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series. Figure 15. … |
| File Format / Size | PDF / 711 Kb |
| Document Language | English |
NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series. Figure 15. Open−Loop Voltage Gain versus
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Text Version of Document
NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series
60 800 Output 50 I 700 9.0mF 15k K 230 ) 600 40 √HZ 8.25k GND TAGE GAIN (dB) 500 30 400 VKA = Vref TAGE (nV/ 20 IK = 1 mA 300 TA = 25 Input °C VKA 10 200 IK , OPEN LOOP VOL NOISE VOL 0 L IK = 100 mA to 10 mA 100 TA = 25°C A VO −10 0 1000 10k 100k 1M 10M 10 100 1000 10k 100k f, FREQUENCY (Hz) f, FREQUENCY (Hz)
Figure 15. Open−Loop Voltage Gain versus Figure 16. Spectral Noise Density Frequency
Input 4.0 Monitor 220 Output 3.0 Pulse Generator 50 2.0 Output f = 100kHz 1.0 GND TAGE SWING (V) 10 VOL 5.0 THODE CURRENT (mA) 0 Input , CA I K 0 4.0 8.0 12 16 20 24 28 32 36 40 t, TIME (ms) CL, LOAD CAPACITANCE (nF)
Figure 17. Pulse Response Figure 18. Stability Boundary Conditions Figure 19. Stability Boundary Conditions for Small Cathode Current www.onsemi.com 7
60 800 Output 50 I 700 9.0mF 15k K 230 ) 600 40 √HZ 8.25k GND TAGE GAIN (dB) 500 30 400 VKA = Vref TAGE (nV/ 20 IK = 1 mA 300 TA = 25 Input °C VKA 10 200 IK , OPEN LOOP VOL NOISE VOL 0 L IK = 100 mA to 10 mA 100 TA = 25°C A VO −10 0 1000 10k 100k 1M 10M 10 100 1000 10k 100k f, FREQUENCY (Hz) f, FREQUENCY (Hz)
Figure 15. Open−Loop Voltage Gain versus Figure 16. Spectral Noise Density Frequency
Input 4.0 Monitor 220 Output 3.0 Pulse Generator 50 2.0 Output f = 100kHz 1.0 GND TAGE SWING (V) 10 VOL 5.0 THODE CURRENT (mA) 0 Input , CA I K 0 4.0 8.0 12 16 20 24 28 32 36 40 t, TIME (ms) CL, LOAD CAPACITANCE (nF)
Figure 17. Pulse Response Figure 18. Stability Boundary Conditions Figure 19. Stability Boundary Conditions for Small Cathode Current www.onsemi.com 7
