AS1700-NPN 데이터 시트보기 (PDF) - Astec Semiconductor => Silicon Link
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AS1700-NPN Datasheet PDF : 20 Pages
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AS17xx
Functional Circuit Blocks
Voltage Regulators/References
Figure 8. Zener Diode VZ = 7 V
Semicustom Bipolar Array
VCC
R3
Q2
R2
VO
Q1
R1
Figure 9. VBE Multipled Regulator.
VOUT = VBE * R2 /R1
V0
R1
R2
Q3
Q 2 5X
Q1 R3
Figure 10. Widlar Band Gap Reference.
∆VBE = V(R3) = VT * ln (A2/A1)
VOUT = VBE(Q3) + (R2/R3) * ∆VBE
VCC
–
+
Q1 20X
Q2
VO
R1
R2
Figure 11. Brokaw Band Gap Reference.
∆VBE = V(R1) = VT * ln (A1/A2)
VOUT = VBE(Q2) + V(R1) * 2 * R2/R1
ASTEC Semiconductor
132
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