Datasheet NCP431 (ON Semiconductor) - 9
| 制造商 | ON Semiconductor |
| 描述 | Voltage Reference, Low Cathode Current, Programmable, Shunt Regulator |
| 页数 / 页 | 22 / 9 — NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series. TYPICAL … |
| 文件格式/大小 | PDF / 711 Kb |
| 文件语言 | 英语 |
NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series. TYPICAL APPLICATIONS. Figure 22. Shunt Regulator
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NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series TYPICAL APPLICATIONS
V+ VOUT V+ VOUT I R1 K R1 CL R2 R2 R1 V Ǔ OUT + ǒ1 ) V R2 ref R1 V Ǔ OUT + ǒ1 ) V R2 ref
Figure 22. Shunt Regulator Figure 23. High Current Shunt Regulator
V+ VOUT MC7805 V+ In Out VOUT Common R1 R1 R2 R2 R1 V Ǔ OUT + ǒ1 ) V R2 ref R1 V Ǔ V V OUT + ǒ1 ) ref OUT(min) + Vref ) 5.0 V R2 VIN(min) + VOUT ) Vbe V
Figure 24. Output Control for a
OUT(min) + Vref
Tree−Terminal Fixed Regulator Figure 25. Series Pass Regulator
V+ ISink RCL V+ IOUT Vref ISink + Rs Vref I R OUT + S RCL
Figure 26. Constant Current Source Figure 27. Constant Current Sink www.onsemi.com 9
V+ VOUT V+ VOUT I R1 K R1 CL R2 R2 R1 V Ǔ OUT + ǒ1 ) V R2 ref R1 V Ǔ OUT + ǒ1 ) V R2 ref
Figure 22. Shunt Regulator Figure 23. High Current Shunt Regulator
V+ VOUT MC7805 V+ In Out VOUT Common R1 R1 R2 R2 R1 V Ǔ OUT + ǒ1 ) V R2 ref R1 V Ǔ V V OUT + ǒ1 ) ref OUT(min) + Vref ) 5.0 V R2 VIN(min) + VOUT ) Vbe V
Figure 24. Output Control for a
OUT(min) + Vref
Tree−Terminal Fixed Regulator Figure 25. Series Pass Regulator
V+ ISink RCL V+ IOUT Vref ISink + Rs Vref I R OUT + S RCL
Figure 26. Constant Current Source Figure 27. Constant Current Sink www.onsemi.com 9