UC3842A/3843A

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

3 of 9

www.unisonic.com.tw

QW-R103-002.I



PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage(Low Impedance Source)

30

V

Self Limiting

V

Analog Inputs (Pin 2,3)

-0.3 ~ +6.3

V

Output Current (Peak )

±1

A

Error Amplifier Output Sink Current

10

mA

Output Energy (Capacity Load)

5

μJ

DIP-8

1250

SOP-8

800

mW

8

mW/°C

Junction Temperature

+150

°C

Storage Temperature

-65 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



ELECT RI CAL CH ARACT ERI ST I CS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REFERENCE SECTION

Output Voltage

4.9

5

5.1

V

Line Regulation

V

REF

6

20

mV

Load Regulation

V

REF

6

25

mV

Temperature Stability

(Note 1)

0.2

0.4

mV/°C

Total Output Variation

Line, Load, Temp (Note 1)

4.82

5.18

V

Output Noise Voltage

50

μV

Long Term Stability

5

25

mV

Output Short Circuit

-30

-100

-180

mA

OSCILLATOR SECTION

Initial Accuracy

f

47

52

57

kHz

Voltage Stability

f/V

CC

0.2

1

%

Temperature Stability

5

%

Amplitude

1.7

V

ERROR AMPLIFIER SECTION

Input Voltage

2.42

2.50

2.58

V

Input Bias Current

-0.3

-2

A

AVOL

60

90

dB

Unity Gain Bandwidth

0.7

1

MHz

PSRR

60

70

dB

Output Sink Current

2

6

mA

Output Source Current

-0.5

-0.8

mA

Ω to GND

5

6

V

0.7

1.1

V