CA723CE データシートの表示（PDF） - Harris Semiconductor

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CA723CE

Voltage Regulators Adjustable from 2V to 37V at Output Currents Up to 150mA Without External Pass Transistors

Harris Semiconductor 

CA723, CA723C

Typical Application Circuits (Continued)

VREF

R4

3kΩ

R1

D1

NON

12V

SK3062

INV.

INPUT

R3

3kΩ

R2

R5

3.9kΩ

V+

VC

VO

VI = 85V

VZ

TI

2N3442

CURRENT

LIMIT

RSCP

1Ω

CURRENT

SENSE

INV.

INPUT

V-

COMP

C1

0.001µF

Circuit Performance Data:

REGULATED

OUTPUT-50V

Line Regulation (∆V = 20V) 15mV

Load Regulation (∆IL = 50mA) 20mV

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 26. POSITIVE FLOATING REGULATOR CIRCUIT

R5

10kΩ

V+

VC

VI

R2

D1

12V

SK3062

R1

VREF

R3

3kΩ

NON

INV.

INPUT

R4

3kΩ

VO

R6

10kΩ

VZ

TI

2N6211

CURRENT

LIMIT

CURRENT

SENSE

INV.

INPUT

C1

V-

0.001µF

COMP

Circuit Performance Data:

REGULATED

OUTPUT-100V

Line Regulation (∆VI = 20V) 30mV

Load Regulation (∆IL =100mA) 20mV

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 27. NEGATIVE FLOATING REGULATOR CIRCUIT

VI

VREF

V+ VC

VO RSCP NOTE 2

REGULATED

OUTPUT 5V

R1

CURRENT

LIMIT

CURRENT

SENSE

NON

R2 INV

INPUT V-

INV.

COMP INPUT R3

C1

0.001µF

2kΩ TI

2N3053

R4

2.kΩ

CCSL

LOGIC

INPUT

Circuit Performance Data:

Line Regulation (∆VI = 3V) 0.5mV

Load Regulation (∆IL = 50mA) 1.5mV

Short Circuit Current 20mA

NOTE: 1. A current limiting transistor may be used for shutdown if

current limiting is not required.

2. Add a diode if VO > 10V.

FIGURE 28. REMOTE SHUTDOWN REGULATOR CIRCUIT WITH

CURRENT LIMITING

V+

VREF

R1

INV

R2 INPUT V-

VC

VO R3

VZ 100Ω

C

CURRENT LIMIT

CURRENT SENSE

NON INV.

COMP INPUT

C1

0.005µF

VI

R4

100Ω

REGULATED

OUTPUT 5V

Circuit Performance Data:

Line Regulation (∆VI = 10V) 0.5mV

Load Regulation (∆IL = 100mA) 1.5mV

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 29. SHUNT REGULATOR CIRCUIT

7-10

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