RC4194 데이터 시트보기 (PDF) - Fairchild Semiconductor

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RC4194

Dual Tracking Voltage Regulators

Fairchild Semiconductor 

RC4194

PRODUCT SPECIFICATION

Typical Applications

0.01µF

+VS

Comp+

+VS

+VOUT

RA

+VOUT

To Additional

Comparators

4.7µF**

RM4194

Bal

4805

(Typically 15 RC4805s)

-VS

-VS

R SET Comp- Gnd R 0 -VOUT

RB

71.5K

R0

-VOUT= -5V

To Additional

Comparators

4.7µF

0.01µF

65-0205

RO (k½ ) = 2.5 (-VOUT )

Adjust R O for -VOUT = -5V (12.5 kW)

RF1 = R F2 = 20 k½ (See Schematic)

+ VOUT = -VOUT

R F1

R F2

RA = when +VOUT

RA

RB

-VOUT

R B = when +VOUT -V OUT

For +VOUT = 5 when -VOUT = -5V

RA =

RB =

Figure 4. Unbalanced Output Voltage — Comparator Application

2N4905 or equiv.

R SC*

0.1 mF

+VS

47W

GND

+VS

4194

2N2297 or equiv.

Comp+

+VOUT

+VOUT

60µF**

-VS

47 W

2N2297 or equiv.

0.1 mF

-VS

RSET Comp-

R0 -VOUT

R0

71.5K

R SC*

2N914 or equiv.

*RSC =

0.7

I SC

**Optional usage - Not as critical as -VO bypass capacitors.

-V OUT

60µF

Load regulation

10 mV @ 2.5A

RO (kW) = 2.5 V O

Note: Compensation and bypass capacitor connections should be close as posibe to the 4194

65-0206

Figure 5. High Output Application

5

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