ELECTRICAL CHARACTERISTICS ( [note 1] Unless otherwise stated, these specifications apply for

Symbol

Parameter

Test Conditions

UC284XB

UC384XB

Unit

Min. Typ. Max. Min. Typ. Max.

REFERENCE SECTION

Output Voltage

4.95

5.00

5.05

4.90

5.00

5.10

V

Line Regulation

12V

220

2

20

mV

Load Regulation

1

325

3

25

mV

(Note 2)

0.2

0.2

mV/

°C

Total Output Variation

Line, Load, Temperature

4.9

5.1

4.82

5.18

V

Output Noise Voltage

10Hz

(note 2)

50

50

µV

Long Term Stability

=

125

°C, 1000Hrs

(note 2)

525

5

25

mV

Output Short Circuit

-30

-100 -180

-30

-100 -180

mA

OSCILLATOR SECTION

Frequency

°C

49

48

225

52

–

250

55

56

275

49

48

225

52

–

250

55

56

275

KHz

KHz

KHz

–

0.2

1

–

0.2

1

%

–1

––

0.5

–

%

Oscillator Voltage Swing

(peak to peak)

–

1.6

–

–

1.6

–

V

7.8

7.5

8.3

–

8.8

8.8

7.8

7.6

8.3

–

8.8

8.8

mA

mA

ERROR AMP SECTION

Input Voltage

2.45

2.50

2.55

2.42

2.50

2.58

V

Input Bias Current

-0.1

-1

-0.1

-2

µA

2V

65

90

65

90

dB

BW

Unity Gain Bandwidth

0.7

1

0.7

1

MHz

PSRR

Power Supply Rejec. Ratio

12V

60

70

60

70

dB

Output Sink Current

2

12

2

12

mA

Output Source Current

-0.5

-1

-0.5

-1

mA

Ω to Ground

5

6.2

5

6.2

V

Ω to Pin 8

0.8

1.1

0.8

1.1

V

CURRENT SENSE SECTION

Gain

(note 3 & 4)

2.85

3

3.15

2.85

3

3.15

V/V

Maximum Input Signal

0.9

1

1.1

0.9

1

1.1

V

SVR

Supply Voltage Rejection

12

70

70

dB

Input Bias Current

-2

-10

-2

-10

µA

Delay to Output

150

300

150

300

ns

THERMAL DATA

Symbol

Description

Minidip

SO8

Unit

Thermal Resistance Junction-ambient.

max.

100

150

°C/W

UC2842B/3B/4B/5B - UC3842B/3B/4B/5B

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