CA723C データシートの表示（PDF） - Intersil
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CA723C Datasheet PDF : 9 Pages
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CA723, CA723C
Typical Application Circuits (Continued)
V+
VC
VI
R2 VREF
R5
VZ 2kΩ
R4
VO
3kΩ
CURRENT
LIMIT
CURRENT
SENSE
R3
3kΩ
R1
NON
INV.
INPUT
V-
INV.
INPUT
COMP
C1
100pF
REGULATED
OUTPUT-15V
Circuit Performance Data:
Line Regulation (∆VI = 3V) 1mV
Load Regulation (∆IL = 100mA) 2mV
Note: For Applications Employing the TO-5 Style Package
and Where VZ Is Required, An External; 6.2V Zener Diode
Should be Connected in Series with VO (Terminal 6).
FIGURE 22. NEGATIVE VOLTAGE REGULATOR CIRCUIT
VI
VC
V+
VREF
VO
NON
INV
INPUT
CURRENT
LIMIT
RSCP
REGULATED
OUTPUT 15V
CURRENT
SENSE
R1
INV.
INPUT
R2
V- COMP
C1
100pF
Circuit Performance Data:
Line Regulation (∆VI = 3V) 1.5mV
Load Regulation (∆IL = 1A) 15mV
FIGURE 23. POSITIVE VOLTAGE REGULATOR CIRCUIT (WITH
EXTERNAL NPN PASS TRANSISTOR)
VI
V+
VREF
R3
60Ω
VC
VO
2N5956
OR
2N6108
R1
CURRENT
LIMIT
CURRENT
SENSE
INV.
R2
NON
INV
INPUT
V-
INPUT
COMP
C1
0.001µF
RSCP
REGULATED
OUTPUT 5V
Circuit Performance Data:
Line Regulation (∆VI = 3V) 0.5mV
Load Regulation (∆IL = 1A) 5mV
FIGURE 24. POSITIVE VOLTRAGE REGULATOR CIRCUIT
(WITH EXTERNAL PNP PASS TRANSISTOR)
VI
V+
VREF
R1
NON
R2
INV
INPUT
V-
VC
VO
R3
2.7kΩ
CURRENT
LIMIT
CURRENT
SENSE
REGULATED
OUTPUT 5V
RSCP
30Ω
R4
5.6kΩ
INV.
COMP INPUT
C1
0.001µF
Circuit Performance Data:
Line Regulation (∆V = 3V) 0.5mV
Load Regulation (∆IL = 10mA) 1mV
Short Circuit Current 20mA
FIGURE 25. FOLDBACK CURRENT LIMITING CIRCUIT
3-10
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